Details Tied to Safari Browser-based 'ScamClub' Campaign Revealed
2021-02-17T15:30:37
ID THREATPOST:4EC160EC2EBC650C54F5047502D0F7A4 Type threatpost Reporter Elizabeth Montalbano Modified 2021-02-17T15:30:37
Description
Details of a flaw in Apple’s Safari browser, publicly disclosed Tuesday, outline how the cybergang known as ScamClub reached 50 million users with a three-month-long malicious ad campaign pushing malware to mobile iOS Chrome and macOS desktop browsers.
The Safari bug, patched on Dec. 2 by Apple, was exploited by a malvertising campaign that redirected traffic to scam sites that flogged gift cards, prizes and malware to victims. Impacted was Apple’s Safari browser running on macOS Big Sur 11.0.1 and Google’s iOS-based Chrome browser. The common thread is Apple’s WebKit browser engine framework.
The attacks, which researchers at Confiant Security attributed to ScamClub, exploited a flaw in the open-source WebKit engine, according to a blog post published Tuesday by Eliya Stein, senior security engineer who found the bug on June 22, 2020.
He reports that the malicious campaign exploited a privilege-escalation vulnerability, tracked as CVE-2021–1801. Stein did not report how many, if any, people may have been impacted by the campaign or what type of malicious activity the threat actors may have engaged in post-exploit. Typically, a privilege-escalation attack’s primary goal is to obtain unauthorized access to a targeted system.
What is ScamClub?
ScamClub is a well-established cybergang that for the past three years has hijacked hundreds-of-millions of browser sessions with malvertising campaigns that redirect users to adult and gift card scams.
Until today, the group is best known for a massive 2018 campaign where it redirected 300 million users to shady phishing sites, serving up adult content and gift card scams.
Confiant dubbed the group ScamClub, because of the criminal’s use of multiple fast-changing redirection chains eventually spitting up shady gift-card offers and adult content.
ScamClub typically uses a “bombardment” strategy to flood ad-delivery systems with “tons of horrendous demand” rather than trying to obfuscate its nefarious activity, researchers note.
“They do this at incredibly high volumes in the hopes that the small percentage that slips through will do significant damage,” he explained.
What are the ScamClub Details of the WebKit Exploit?
In his Tuesday-report, Stein said this most recent ScamClub campaign redirected users to landing pages that offer prizes, such as “You’ve won a Walmart gift card!” or “You’ve won an iPhone!” to rather successful effect, he wrote.
Over the last 90 days alone, ScamClub has delivered over 50 million malicious impressions, “maintaining a low baseline of activity augmented by frequent manic bursts,” with as many as 16 million impacted ads being served in a single day, according to Stein.
This type of attack vector can be difficult for both the average person using the internet and businesses alike to handle, given the potential number of malicious ads being served, observed Saryu Nayyar, CEO of unified security and risk analytics firm Gurucul.
“Attacks like this can be a challenge to mitigate for home users, beyond keeping their patches up to date relying on an ISP provided or third-party service to block known malicious DNS domains,” she said in an email to Threatpost. “Organizations have a similar challenge with the sheer volume of malicious ads, but can benefit from enabling the same techniques and security analytics that can help identify malicious activities by their behaviors.”
Diary of a WebKit Exploit
The latest ScamCard payload has a number of steps to it, starting with an ad tag that loads a malicious Content Delivery Network-hosted dependency typically “obfuscated in absurd ways in attempt to evade URL blocklists” that can expand to thousands of lines of code, Stein wrote.
He said that Confiant researchers narrowed their investigation down to four lines of code that ultimately alerted them to ScamClub’s use of the WebKit bug in its campaign:Observing that the code seemed different than a typical malvertising tactic of trying “to spray a bunch of redirect attempts in a single payload that try to do the redirect in different ways,” researchers investigated by staging a simple HTML file that implemented a cross-origin sandboxed frame and a button that dispatched their event.
“The allow-top-navigation-by-user-activation sandbox attribute, which is often lauded as one of the most vital tools in an anti-malvertising strategy, should in theory prevent any redirection unless a proper activation takes place,” Stein explained. “Activation in this context typically means a tap or a click inside the frame.”
If this was the case, then Confiant’s proof of concept should not have been able to redirect the page. However, it did, which proved to researchers that ScamClub’s use of “a long tail iframe sandbox bypass” was leveraging a browser bug that turned out to be in WebKit, Stein said.
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{"id": "THREATPOST:4EC160EC2EBC650C54F5047502D0F7A4", "type": "threatpost", "bulletinFamily": "info", "title": "Details Tied to Safari Browser-based 'ScamClub' Campaign Revealed", "description": "Details of a flaw in Apple\u2019s Safari browser, publicly disclosed Tuesday, outline how the cybergang known as ScamClub reached 50 million users with a three-month-long malicious ad campaign pushing malware to mobile iOS Chrome and macOS desktop browsers.\n\nThe Safari bug, [patched on Dec. 2 by Apple](<https://support.apple.com/en-us/HT212147>), was exploited by a malvertising campaign that redirected traffic to scam sites that flogged gift cards, prizes and malware to victims. Impacted was Apple\u2019s Safari browser running on macOS Big Sur 11.0.1 and Google\u2019s iOS-based Chrome browser. The common thread is Apple\u2019s WebKit browser engine framework.\n\nThe attacks, which researchers at Confiant Security attributed to ScamClub, exploited a flaw in the open-source WebKit engine, according to [a blog post](<https://blog.confiant.com/malvertiser-scamclub-bypasses-iframe-sandboxing-with-postmessage-shenanigans-cve-2021-1801-1c998378bfba>) published Tuesday by Eliya Stein, senior security engineer who found the bug on June 22, 2020.\n\n[](<https://threatpost.com/newsletter-sign/>)\n\nHe reports that the malicious campaign exploited a privilege-escalation vulnerability, tracked as [CVE-2021\u20131801](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1801>). Stein did not report how many, if any, people may have been impacted by the campaign or what type of malicious activity the threat actors may have engaged in post-exploit. Typically, a privilege-escalation attack\u2019s primary goal is to obtain unauthorized access to a targeted system.\n\n## **What is ScamClub? **\n\nScamClub is a well-established cybergang that for the past three years has hijacked hundreds-of-millions of browser sessions with malvertising campaigns that redirect users to adult and gift card scams.\n\nUntil today, the group is best known for a massive 2018 campaign where it redirected 300 million users to shady phishing sites, serving up adult content and gift card scams.\n\nConfiant dubbed the group ScamClub, because of the criminal\u2019s use of multiple fast-changing redirection chains eventually spitting up shady gift-card offers and adult content.\n\nScamClub typically uses a \u201cbombardment\u201d strategy to flood ad-delivery systems with \u201ctons of horrendous demand\u201d rather than trying to obfuscate its nefarious activity, researchers note.\n\n\u201cThey do this at incredibly high volumes in the hopes that the small percentage that slips through will do significant damage,\u201d he explained.\n\n## **What are the ScamClub Details of the WebKit Exploit? **\n\nIn his Tuesday-report, Stein said this most recent ScamClub campaign redirected users to landing pages that offer prizes, such as \u201cYou\u2019ve won a Walmart gift card!\u201d or \u201cYou\u2019ve won an iPhone!\u201d to rather successful effect, he wrote.\n\nOver the last 90 days alone, ScamClub has delivered over 50 million malicious impressions, \u201cmaintaining a low baseline of activity augmented by frequent manic bursts,\u201d with as many as 16 million impacted ads being served in a single day, according to Stein.\n\nThis type of attack vector can be difficult for both the average person using the internet and businesses alike to handle, given the potential number of malicious ads being served, observed Saryu Nayyar, CEO of unified security and risk analytics firm Gurucul.\n\n\u201cAttacks like this can be a challenge to mitigate for home users, beyond keeping their patches up to date relying on an ISP provided or third-party service to block known malicious DNS domains,\u201d she said in an email to Threatpost. \u201cOrganizations have a similar challenge with the sheer volume of malicious ads, but can benefit from enabling the same techniques and security analytics that can help identify malicious activities by their behaviors.\u201d\n\n## **Diary of a WebKit Exploit**\n\nThe latest ScamCard payload has a number of steps to it, starting with an ad tag that loads a malicious Content Delivery Network-hosted dependency typically \u201cobfuscated in absurd ways in attempt to evade URL blocklists\u201d that can expand to thousands of lines of code, Stein wrote.\n\nHe said that Confiant researchers narrowed their investigation down to four lines of code that ultimately alerted them to ScamClub\u2019s use of the WebKit bug in its campaign:[](<https://media.threatpost.com/wp-content/uploads/sites/103/2021/02/17102521/scamclub-four-lines-of-code-webkit.png>)Observing that the code seemed different than a typical malvertising tactic of trying \u201cto spray a bunch of redirect attempts in a single payload that try to do the redirect in different ways,\u201d researchers investigated by staging a simple HTML file that implemented a cross-origin sandboxed frame and a button that dispatched their event.\n\n\u201cThe `allow-top-navigation-by-user-activation` sandbox attribute, which is often lauded as one of the most vital tools in an anti-malvertising strategy, should in theory prevent any redirection unless a proper activation takes place,\u201d Stein explained. \u201cActivation in this context typically means a tap or a click _inside_ the frame.\u201d\n\nIf this was the case, then Confiant\u2019s proof of concept should not have been able to redirect the page. However, it did, which proved to researchers that ScamClub\u2019s use of \u201ca long tail iframe sandbox bypass\u201d was leveraging a browser bug that turned out to be in WebKit, Stein said.\n\n### _Is your small- to medium-sized business an easy mark for attackers?_\n\n**Threatpost WEBINAR:** _ Save your spot for __\u201c**15 Cybersecurity Pitfalls and Fixes for SMBs**__,\u201d a _[**_FREE Threatpost webinar_**](<https://threatpost.com/webinars/15-cybersecurity-gaffes-and-fixes-mid-size-businesses-face/?utm_source=ART&utm_medium=ART&utm_campaign=Feb_webinar>)** _on Feb. 24 at 2 p.m. ET._**_ Cybercriminals count on you making these mistakes, but our experts will help you lock down your small- to mid-sized business like it was a Fortune 100. _[_Register NOW_](<https://threatpost.com/webinars/15-cybersecurity-gaffes-and-fixes-mid-size-businesses-face/?utm_source=ART&utm_medium=ART&utm_campaign=Feb_webinar>)_ for this _**_LIVE_****_ _**_webinar on Wed., Feb. 24._\n", "published": "2021-02-17T15:30:37", "modified": "2021-02-17T15:30:37", "cvss": {"score": 0.0, "vector": "NONE"}, "href": "https://threatpost.com/safari-browser-scamclub-campaign-revealed/164023/", "reporter": "Elizabeth Montalbano", "references": ["https://support.apple.com/en-us/HT212147", "https://blog.confiant.com/malvertiser-scamclub-bypasses-iframe-sandboxing-with-postmessage-shenanigans-cve-2021-1801-1c998378bfba", "https://threatpost.com/newsletter-sign/", "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1801", "https://media.threatpost.com/wp-content/uploads/sites/103/2021/02/17102521/scamclub-four-lines-of-code-webkit.png", "https://threatpost.com/webinars/15-cybersecurity-gaffes-and-fixes-mid-size-businesses-face/?utm_source=ART&utm_medium=ART&utm_campaign=Feb_webinar", "https://threatpost.com/webinars/15-cybersecurity-gaffes-and-fixes-mid-size-businesses-face/?utm_source=ART&utm_medium=ART&utm_campaign=Feb_webinar"], "cvelist": ["CVE-2021-1801"], "lastseen": "2021-02-17T16:39:38", "viewCount": 186, "enchantments": {"dependencies": {"references": [{"type": "malwarebytes", "idList": ["MALWAREBYTES:571F8A177DE5469D82A8C2F7E8BE43CB"]}, {"type": "thn", "idList": ["THN:99F0C5326CD3398017C19279EE84B66E"]}, {"type": "apple", "idList": ["APPLE:HT212146", "APPLE:HT212147", "APPLE:HT212149", "APPLE:HT212148"]}, {"type": "nessus", "idList": ["MACOS_HT212147.NASL"]}], "modified": "2021-02-17T16:39:38", "rev": 2}, "score": {"value": 0.5, "vector": "NONE", "modified": "2021-02-17T16:39:38", "rev": 2}, "vulnersScore": 0.5}}
{"thn": [{"lastseen": "2021-02-17T08:27:03", "bulletinFamily": "info", "cvelist": ["CVE-2021-1801"], "description": "[](<https://thehackernews.com/images/-pZbqnOXttL8/YCzABraKY3I/AAAAAAAAByk/dQW5ke2LZIAZWJFS08DEBVN6InouwoA9ACLcBGAsYHQ/s0/visa-hacking.jpg>)\n\nA malvertising group known as \"ScamClub\" exploited a zero-day vulnerability in WebKit-based browsers to inject malicious payloads that redirected users to fraudulent websites gift card scams.\n\nThe attacks, first [spotted](<https://blog.confiant.com/malvertiser-scamclub-bypasses-iframe-sandboxing-with-postmessage-shenanigans-cve-2021-1801-1c998378bfba>) by ad security firm Confiant in late June 2020, leveraged a bug (CVE-2021\u20131801) that allowed malicious parties to bypass the [iframe](<https://developer.mozilla.org/en-US/docs/Web/HTML/Element/iframe>) sandboxing policy in the browser engine that powers Safari and Google Chrome for iOS and run malicious code.\n\n[](<https://go.thn.li/password-auditor> \"password auditor\" )\n\nSpecifically, the technique exploited the manner how WebKit handles JavaScript [event listeners](<https://developer.mozilla.org/en-US/docs/Web/API/EventListener>), thus making it possible to break out of the sandbox associated with an ad's inline frame element despite the presence of \"allow-top-navigation-by-user-activation\" attribute that explicitly forbids any redirection unless the click event occurs inside the iframe.\n\nTo test this hypothesis, the researchers set about creating a simple HTML file containing a cross-origin sandboxed iframe and a button outside it that triggered an event to access the iframe and redirect the clicks to rogue websites.\n\n\"The [...] button is outside of the sandboxed frame after all,\" Confiant researcher Eliya Stein said. \"However, if it does redirect, that means we have a browser security bug on our hands, which turned out to be the case when tested on WebKit based browsers, namely Safari on desktop and iOS.\"\n\n[](<https://thehackernews.com/images/-7WViMHKcxyc/YCy_iTMdyXI/AAAAAAAAByc/HhYwiGvYNGM6PgKkorIbgfB6p02dr7A7wCLcBGAsYHQ/s0/hacking.jpg>)\n\nFollowing responsible disclosure to Apple on June 23, 2020, the tech giant [patched](<https://trac.webkit.org/changeset/270373/webkit>) WebKit on December 2, 2020, and subsequently addressed the issue \"with improved iframe sandbox enforcement\" as part of security updates released earlier this month for [iOS 14.4](<https://support.apple.com/en-in/HT212146>) and [macOS Big Sur](<https://support.apple.com/en-us/HT212147>).\n\nConfiant said the operators of ScamClub have delivered more than 50 million malicious impressions over the last 90 days, with as many as 16MM impacted ads being served in a single day.\n\n\"On the tactics side, this attacker historically favors what we refer to as a 'bombardment' strategy,\" Stein elaborated.\n\n\"Instead of trying to fly under the radar, they flood the ad tech ecosystem with tons of horrendous demand well aware that the majority of it will be blocked by some kind of gatekeeping, but they do this at incredibly high volumes in the hopes that the small percentage that slips through will do significant damage.\"\n\nConfiant has also [published](<https://github.com/WeAreConfiant/security/blob/master/stix-feeds/scamclub.stix.json>) a list of websites used by the ScamClub group to run its recent scam campaign.\n\n \n\n\nFound this article interesting? Follow THN on [Facebook](<https://www.facebook.com/thehackernews>), [Twitter _\uf099_](<https://twitter.com/thehackersnews>) and [LinkedIn](<https://www.linkedin.com/company/thehackernews/>) to read more exclusive content we post.\n", "modified": "2021-02-17T07:11:54", "published": "2021-02-17T07:11:00", "id": "THN:99F0C5326CD3398017C19279EE84B66E", "href": "https://thehackernews.com/2021/02/malvertisers-exploited-webkit-0-day-to.html", "type": "thn", "title": "Malvertisers Exploited WebKit 0-Day to Redirect Browser Users to Scam Sites", "cvss": {"score": 0.0, "vector": "NONE"}}], "malwarebytes": [{"lastseen": "2021-02-22T13:33:51", "bulletinFamily": "blog", "cvelist": ["CVE-2021-1801"], "description": "Last week on Malwarebytes Labs, the spotlight fell on [the State of Malware 2021 report](<https://blog.malwarebytes.com/reports/2021/02/state-of-malware-2021-report/>), wherein we have seen cyberthreats evolve.\n\nWe also touched on ransomware, such as [Egregor](<https://blog.malwarebytes.com/ransomware/2021/02/egregor-ransomware-hit-by-arrests/>) and [a tactic](<https://blog.malwarebytes.com/malwarebytes-news/2021/02/rdp-the-ransomware-problem-that-wont-go-away/>) known as Remote Desktop Protocol (RDP) brute forcing that has long been part of the ransomware operators' toolkit; insider threats, such as [what Yandex recently experienced](<https://blog.malwarebytes.com/awareness/2021/02/yandex-sysadmin-caught-selling-access-to-email-accounts/>) with one of its own sysadmins; [romance scams](<https://blog.malwarebytes.com/privacy-2/2021/02/romance-scams-ftc-reveals-304-million-of-heartache/>); and put social media under scrutiny\u2014looking at you, [Clubhouse](<https://blog.malwarebytes.com/awareness/2021/02/clubhouse-under-scrutiny-for-sending-data-to-chinese-servers/>) and [Omegle](<https://blog.malwarebytes.com/awareness/2021/02/omegle-investigation-raises-new-concerns-for-kids-safety/>); [some wins](<https://blog.malwarebytes.com/awareness/2021/02/north-korean-hackers-charged-with-1-3-billion-of-cyberheists/>) for the good guys; and course, [Cyberpunk 2077](<https://blog.malwarebytes.com/malwarebytes-news/2021/02/cybersecurity-in-cyberpunk-2077-the-good-the-bad-and-the-cringeworthy/>). \n\n### Other cybersecurity news\n\n * Following the water supply hack in a Florida city, the US government [warned](<https://www.securityweek.com/us-gov-warning-water-supply-hack-get-rid-windows-7>) critical infrastructure operators to upgrade their Windows 7 operating systems. (Source: Security Week)\n * Baby monitor vulnerabilities are in the spotlight once again after the cybersecurity team at SafetyDetectives, an independent review site, [unearthed a flaw](<https://www.safetydetectives.com/blog/babymonitor-exposed-report/>) that allows miscreants to take over a camera\u2019s video stream. (Source: SafetyDetectives)\n * Phishers used ["financial bonus" as lure](<https://www.zdnet.com/article/this-phishing-email-promises-you-a-bonus-but-actually-delivers-this-windows-trojan-malware/>) to deliver the Bazar Trojan. (Source: ZDNet)\n * Speaking of phishing scams, they're also promising free COVID vaccines. [Again](<https://www.infosecurity-magazine.com/news/nhs-phishing-scam-promises-covid19/>). (Source: Infosecurity Magazine)\n * Intelligence officials from South Korea claimed that North Korea is behind the [COVID vaccine cyberattack](<https://www.computerweekly.com/news/252496416/North-Korea-accused-of-Pfizer-Covid-vaccine-cyber-attack>) against Pfizer. (Source: Computer Weekly)\n * A flaw in Agora, a voice and video platform, was discovered that could allow attackers to [spy on private calls](<https://www.cyberscoop.com/flaw-agora-video-calling-software-eavesdroppers/>). (Source: CyberScoop)\n * Palo Alto\u2019s Unit42 uncovered [a cryptojacking ](<https://unit42.paloaltonetworks.com/watchdog-cryptojacking/>)[c](<https://unit42.paloaltonetworks.com/watchdog-cryptojacking/>)[ampaign](<https://unit42.paloaltonetworks.com/watchdog-cryptojacking/>) that has been in operation for the last couple of years. (Source: Palo Alto Networks)\n * [ScamClub](<https://blog.confiant.com/malvertiser-scamclub-bypasses-iframe-sandboxing-with-postmessage-shenanigans-cve-2021-1801-1c998378bfba>), a malvertising group, was discovered using an iPhone browser bug to push ads. (Source: Confiant)\n * With the introduction of Apple\u2019s M1 computer processors, [new malware](<https://www.vice.com/en/article/v7mnk4/hackers-are-starting-to-code-malware-specifically-for-apples-m1-computers>) made for them is starting to emerge. (Source: Motherboard)\n\nStay safe, everyone!\n\nThe post [A week in security (February 15 \u2013 February 21)](<https://blog.malwarebytes.com/a-week-in-security/2021/02/a-week-in-security-february-15-february-21/>) appeared first on [Malwarebytes Labs](<https://blog.malwarebytes.com>).", "modified": "2021-02-22T11:37:19", "published": "2021-02-22T11:37:19", "id": "MALWAREBYTES:571F8A177DE5469D82A8C2F7E8BE43CB", "href": "https://blog.malwarebytes.com/a-week-in-security/2021/02/a-week-in-security-february-15-february-21/", "type": "malwarebytes", "title": "A week in security (February 15 \u2013 February 21)", "cvss": {"score": 0.0, "vector": "NONE"}}], "apple": [{"lastseen": "2021-02-02T04:44:57", "bulletinFamily": "software", "cvelist": ["CVE-2021-1818", "CVE-2021-1772", "CVE-2021-1778", "CVE-2021-1743", "CVE-2021-1769", "CVE-2021-1761", "CVE-2021-1792", "CVE-2021-1757", "CVE-2021-1744", "CVE-2021-1786", "CVE-2021-1791", "CVE-2021-1748", "CVE-2021-1773", "CVE-2021-1758", "CVE-2021-1787", "CVE-2021-1760", "CVE-2021-1746", "CVE-2021-1785", "CVE-2021-1759", "CVE-2021-1741", "CVE-2021-1747", "CVE-2021-1801", "CVE-2021-1799", "CVE-2021-1788", "CVE-2021-1782", "CVE-2021-1766", "CVE-2021-1783", "CVE-2021-1797", "CVE-2021-1793", "CVE-2021-1776", "CVE-2021-1789", "CVE-2021-1764", "CVE-2021-1750"], "description": "## About Apple security updates\n\nFor our customers' protection, Apple doesn't disclose, discuss, or confirm security issues until an investigation has occurred and patches or releases are available. Recent releases are listed on the [Apple security updates](<https://support.apple.com/kb/HT201222>) page.\n\nApple security documents reference vulnerabilities by [CVE-ID](<http://cve.mitre.org/about/>) when possible.\n\nFor more information about security, see the [Apple Product Security](<https://support.apple.com/kb/HT201220>) page.\n\n\n\n## tvOS 14.4\n\nReleased January 26, 2021\n\n**Analytics**\n\nAvailable for: Apple TV 4K and Apple TV HD\n\nImpact: A remote attacker may be able to cause a denial of service\n\nDescription: This issue was addressed with improved checks.\n\nCVE-2021-1761: Cees Elzinga\n\nEntry added February 1, 2021\n\n**APFS**\n\nAvailable for: Apple TV 4K and Apple TV HD\n\nImpact: A local user may be able to read arbitrary files\n\nDescription: The issue was addressed with improved permissions logic.\n\nCVE-2021-1797: Thomas Tempelmann\n\nEntry added February 1, 2021\n\n**CoreAnimation**\n\nAvailable for: Apple TV 4K and Apple TV HD\n\nImpact: A malicious application could execute arbitrary code leading to compromise of user information\n\nDescription: A memory corruption issue was addressed with improved state management.\n\nCVE-2021-1760: @S0rryMybad of 360 Vulcan Team\n\nEntry added February 1, 2021\n\n**CoreAudio**\n\nAvailable for: Apple TV 4K and Apple TV HD\n\nImpact: Processing maliciously crafted web content may lead to code execution\n\nDescription: An out-of-bounds write was addressed with improved input validation.\n\nCVE-2021-1747: JunDong Xie of Ant Security Light-Year Lab\n\nEntry added February 1, 2021\n\n**CoreGraphics**\n\nAvailable for: Apple TV 4K and Apple TV HD\n\nImpact: Processing a maliciously crafted font file may lead to arbitrary code execution\n\nDescription: An out-of-bounds write issue was addressed with improved bounds checking.\n\nCVE-2021-1776: Ivan Fratric of Google Project Zero\n\nEntry added February 1, 2021\n\n**CoreMedia**\n\nAvailable for: Apple TV 4K and Apple TV HD\n\nImpact: Processing a maliciously crafted image may lead to arbitrary code execution\n\nDescription: An out-of-bounds read was addressed with improved input validation.\n\nCVE-2021-1759: Hou JingYi (@hjy79425575) of Qihoo 360 CERT\n\nEntry added February 1, 2021\n\n**CoreText**\n\nAvailable for: Apple TV 4K and Apple TV HD\n\nImpact: Processing a maliciously crafted text file may lead to arbitrary code execution\n\nDescription: A stack overflow was addressed with improved input validation.\n\nCVE-2021-1772: Mickey Jin of Trend Micro\n\nEntry added February 1, 2021\n\n**CoreText**\n\nAvailable for: Apple TV 4K and Apple TV HD\n\nImpact: A remote attacker may be able to cause arbitrary code execution\n\nDescription: An out-of-bounds read was addressed with improved bounds checking.\n\nCVE-2021-1792: Mickey Jin & Junzhi Lu of Trend Micro\n\nEntry added February 1, 2021\n\n**Crash Reporter**\n\nAvailable for: Apple TV 4K and Apple TV HD\n\nImpact: A local user may be able to create or modify system files\n\nDescription: A logic issue was addressed with improved state management.\n\nCVE-2021-1786: Csaba Fitzl (@theevilbit) of Offensive Security\n\nEntry added February 1, 2021\n\n**Crash Reporter**\n\nAvailable for: Apple TV 4K and Apple TV HD\n\nImpact: A local attacker may be able to elevate their privileges\n\nDescription: Multiple issues were addressed with improved logic.\n\nCVE-2021-1787: James Hutchins\n\nEntry added February 1, 2021\n\n**FairPlay**\n\nAvailable for: Apple TV 4K and Apple TV HD\n\nImpact: A malicious application may be able to disclose kernel memory\n\nDescription: An out-of-bounds read issue existed that led to the disclosure of kernel memory. This was addressed with improved input validation.\n\nCVE-2021-1791: Junzhi Lu (@pwn0rz), Qi Sun & Mickey Jin of Trend Micro\n\nEntry added February 1, 2021\n\n**FontParser**\n\nAvailable for: Apple TV 4K and Apple TV HD\n\nImpact: A remote attacker may be able to cause arbitrary code execution\n\nDescription: An out-of-bounds read was addressed with improved bounds checking.\n\nCVE-2021-1758: Peter Nguyen of STAR Labs\n\nEntry added February 1, 2021\n\n**ImageIO**\n\nAvailable for: Apple TV 4K and Apple TV HD\n\nImpact: Processing a maliciously crafted image may lead to a denial of service\n\nDescription: This issue was addressed with improved checks.\n\nCVE-2021-1766: Danny Rosseau of Carve Systems\n\nEntry added February 1, 2021\n\n**ImageIO**\n\nAvailable for: Apple TV 4K and Apple TV HD\n\nImpact: Processing a maliciously crafted image may lead to arbitrary code execution\n\nDescription: An out-of-bounds read was addressed with improved input validation.\n\nCVE-2021-1785: Xingwei Lin of Ant Security Light-Year Lab\n\nEntry added February 1, 2021\n\n**ImageIO**\n\nAvailable for: Apple TV 4K and Apple TV HD\n\nImpact: Processing a maliciously crafted image may lead to arbitrary code execution\n\nDescription: An out-of-bounds write was addressed with improved input validation.\n\nCVE-2021-1744: Xingwei Lin of Ant Security Light-Year Lab\n\nEntry added February 1, 2021\n\n**ImageIO**\n\nAvailable for: Apple TV 4K and Apple TV HD\n\nImpact: A remote attacker may be able to cause unexpected application termination or arbitrary code execution\n\nDescription: A logic issue was addressed with improved state management.\n\nCVE-2021-1818: Xingwei Lin from Ant-financial Light-Year Security Lab\n\nEntry added February 1, 2021\n\n**ImageIO**\n\nAvailable for: Apple TV 4K and Apple TV HD\n\nImpact: Processing a maliciously crafted image may lead to arbitrary code execution\n\nDescription: This issue was addressed with improved checks.\n\nCVE-2021-1746: Xingwei Lin of Ant Security Light-Year Lab, and Mickey Jin & Qi Sun of Trend Micro\n\nCVE-2021-1793: Xingwei Lin of Ant Security Light-Year Lab\n\nEntry added February 1, 2021\n\n**ImageIO**\n\nAvailable for: Apple TV 4K and Apple TV HD\n\nImpact: Processing a maliciously crafted image may lead to a denial of service\n\nDescription: A logic issue was addressed with improved state management.\n\nCVE-2021-1773: Xingwei Lin of Ant Security Light-Year Lab\n\nEntry added February 1, 2021\n\n**ImageIO**\n\nAvailable for: Apple TV 4K and Apple TV HD\n\nImpact: Processing a maliciously crafted image may lead to arbitrary code execution\n\nDescription: An out-of-bounds read was addressed with improved bounds checking.\n\nCVE-2021-1741: Xingwei Lin of Ant Security Light-Year Lab\n\nCVE-2021-1743: Xingwei Lin of Ant Security Light-Year Lab, and Mickey Jin & Junzhi Lu of Trend Micro\n\nEntry added February 1, 2021\n\n**ImageIO**\n\nAvailable for: Apple TV 4K and Apple TV HD\n\nImpact: Processing a maliciously crafted image may lead to a denial of service\n\nDescription: An out-of-bounds read issue existed in the curl. This issue was addressed with improved bounds checking.\n\nCVE-2021-1778: Xingwei Lin of Ant Security Light-Year Lab\n\nEntry added February 1, 2021\n\n**ImageIO**\n\nAvailable for: Apple TV 4K and Apple TV HD\n\nImpact: Processing a maliciously crafted image may lead to arbitrary code execution\n\nDescription: An access issue was addressed with improved memory management.\n\nCVE-2021-1783: Xingwei Lin of Ant Security Light-Year Lab\n\nEntry added February 1, 2021\n\n**IOSkywalkFamily**\n\nAvailable for: Apple TV 4K and Apple TV HD\n\nImpact: A local attacker may be able to elevate their privileges\n\nDescription: An out-of-bounds read was addressed with improved bounds checking.\n\nCVE-2021-1757: Proteas and Pan ZhenPeng (@Peterpan0927) of Alibaba Security\n\nEntry added February 1, 2021\n\n**iTunes Store**\n\nAvailable for: Apple TV 4K and Apple TV HD\n\nImpact: Processing a maliciously crafted URL may lead to arbitrary javascript code execution\n\nDescription: A validation issue was addressed with improved input sanitization.\n\nCVE-2021-1748: CodeColorist of Ant-Financial Light-Year Labs\n\nEntry added February 1, 2021\n\n**Kernel**\n\nAvailable for: Apple TV 4K and Apple TV HD\n\nImpact: A remote attacker may be able to cause a denial of service\n\nDescription: A use after free issue was addressed with improved memory management.\n\nCVE-2021-1764: Maxime Villard (m00nbsd)\n\nEntry added February 1, 2021\n\n**Kernel**\n\nAvailable for: Apple TV 4K and Apple TV HD\n\nImpact: An application may be able to execute arbitrary code with kernel privileges\n\nDescription: Multiple issues were addressed with improved logic.\n\nCVE-2021-1750: @0xalsr\n\nEntry added February 1, 2021\n\n**Kernel**\n\nAvailable for: Apple TV 4K and Apple TV HD\n\nImpact: A malicious application may be able to elevate privileges. Apple is aware of a report that this issue may have been actively exploited.\n\nDescription: A race condition was addressed with improved locking.\n\nCVE-2021-1782: an anonymous researcher\n\n**Swift**\n\nAvailable for: Apple TV 4K and Apple TV HD\n\nImpact: A malicious attacker with arbitrary read and write capability may be able to bypass Pointer Authentication\n\nDescription: A logic issue was addressed with improved validation.\n\nCVE-2021-1769: CodeColorist of Ant-Financial Light-Year Labs\n\nEntry added February 1, 2021\n\n**WebKit**\n\nAvailable for: Apple TV 4K and Apple TV HD\n\nImpact: Processing maliciously crafted web content may lead to arbitrary code execution\n\nDescription: A use after free issue was addressed with improved memory management.\n\nCVE-2021-1788: Francisco Alonso (@revskills)\n\nEntry added February 1, 2021\n\n**WebKit**\n\nAvailable for: Apple TV 4K and Apple TV HD\n\nImpact: Processing maliciously crafted web content may lead to arbitrary code execution\n\nDescription: A type confusion issue was addressed with improved state handling.\n\nCVE-2021-1789: @S0rryMybad of 360 Vulcan Team\n\nEntry added February 1, 2021\n\n**WebKit**\n\nAvailable for: Apple TV 4K and Apple TV HD\n\nImpact: Maliciously crafted web content may violate iframe sandboxing policy\n\nDescription: This issue was addressed with improved iframe sandbox enforcement.\n\nCVE-2021-1801: Eliya Stein of Confiant\n\nEntry added February 1, 2021\n\n**WebRTC**\n\nAvailable for: Apple TV 4K and Apple TV HD\n\nImpact: A malicious website may be able to access restricted ports on arbitrary servers\n\nDescription: A port redirection issue was addressed with additional port validation.\n\nCVE-2021-1799: Gregory Vishnepolsky & Ben Seri of Armis Security, and Samy Kamkar\n\nEntry added February 1, 2021\n\n\n\n## Additional recognition\n\n**iTunes Store**\n\nWe would like to acknowledge CodeColorist of Ant-Financial Light-Year Labs for their assistance.\n\nEntry added February 1, 2021\n\n**Kernel**\n\nWe would like to acknowledge Junzhi Lu (@pwn0rz), Mickey Jin & Jesse Change of Trend Micro for their assistance.\n\nEntry added February 1, 2021\n\n**libpthread**\n\nWe would like to acknowledge CodeColorist of Ant-Financial Light-Year Labs for their assistance.\n\nEntry added February 1, 2021\n\n**Store Demo**\n\nWe would like to acknowledge @08Tc3wBB for their assistance.\n\nEntry added February 1, 2021\n", "edition": 2, "modified": "2021-02-01T06:39:19", "published": "2021-02-01T06:39:19", "id": "APPLE:HT212149", "href": "https://support.apple.com/kb/HT212149", "title": "About the security content of tvOS 14.4 - Apple Support", "type": "apple", "cvss": {"score": 0.0, "vector": "NONE"}}, {"lastseen": "2021-02-02T04:43:06", "bulletinFamily": "software", "cvelist": ["CVE-2021-1818", "CVE-2021-1772", "CVE-2021-1778", "CVE-2021-1743", "CVE-2021-1769", "CVE-2021-1761", "CVE-2021-1792", "CVE-2021-1757", "CVE-2021-1744", "CVE-2021-1786", "CVE-2021-1791", "CVE-2021-1748", "CVE-2021-1773", "CVE-2021-1758", "CVE-2021-1787", "CVE-2021-1760", "CVE-2021-1746", "CVE-2021-1785", "CVE-2021-1741", "CVE-2021-1747", "CVE-2021-1801", "CVE-2021-1799", "CVE-2021-1788", "CVE-2021-1782", "CVE-2021-1766", "CVE-2021-1783", "CVE-2021-1797", "CVE-2021-1793", "CVE-2021-1776", "CVE-2021-1789", "CVE-2021-1764", "CVE-2021-1750"], "description": "## About Apple security updates\n\nFor our customers' protection, Apple doesn't disclose, discuss, or confirm security issues until an investigation has occurred and patches or releases are available. Recent releases are listed on the [Apple security updates](<https://support.apple.com/kb/HT201222>) page.\n\nApple security documents reference vulnerabilities by [CVE-ID](<http://cve.mitre.org/about/>) when possible.\n\nFor more information about security, see the [Apple Product Security](<https://support.apple.com/kb/HT201220>) page.\n\n\n\n## watchOS 7.3\n\nReleased January 26, 2021\n\n**Analytics**\n\nAvailable for: Apple Watch Series 3 and later\n\nImpact: A remote attacker may be able to cause a denial of service\n\nDescription: This issue was addressed with improved checks.\n\nCVE-2021-1761: Cees Elzinga\n\nEntry added February 1, 2021\n\n**APFS**\n\nAvailable for: Apple Watch Series 3 and later\n\nImpact: A local user may be able to read arbitrary files\n\nDescription: The issue was addressed with improved permissions logic.\n\nCVE-2021-1797: Thomas Tempelmann\n\nEntry added February 1, 2021\n\n**CoreAnimation**\n\nAvailable for: Apple Watch Series 3 and later\n\nImpact: A malicious application could execute arbitrary code leading to compromise of user information\n\nDescription: A memory corruption issue was addressed with improved state management.\n\nCVE-2021-1760: @S0rryMybad of 360 Vulcan Team\n\nEntry added February 1, 2021\n\n**CoreAudio**\n\nAvailable for: Apple Watch Series 3 and later\n\nImpact: Processing maliciously crafted web content may lead to code execution\n\nDescription: An out-of-bounds write was addressed with improved input validation.\n\nCVE-2021-1747: JunDong Xie of Ant Security Light-Year Lab\n\nEntry added February 1, 2021\n\n**CoreGraphics**\n\nAvailable for: Apple Watch Series 3 and later\n\nImpact: Processing a maliciously crafted font file may lead to arbitrary code execution\n\nDescription: An out-of-bounds write issue was addressed with improved bounds checking.\n\nCVE-2021-1776: Ivan Fratric of Google Project Zero\n\nEntry added February 1, 2021\n\n**CoreText**\n\nAvailable for: Apple Watch Series 3 and later\n\nImpact: Processing a maliciously crafted text file may lead to arbitrary code execution\n\nDescription: A stack overflow was addressed with improved input validation.\n\nCVE-2021-1772: Mickey Jin of Trend Micro\n\nEntry added February 1, 2021\n\n**CoreText**\n\nAvailable for: Apple Watch Series 3 and later\n\nImpact: A remote attacker may be able to cause arbitrary code execution\n\nDescription: An out-of-bounds read was addressed with improved bounds checking.\n\nCVE-2021-1792: Mickey Jin & Junzhi Lu of Trend Micro\n\nEntry added February 1, 2021\n\n**Crash Reporter**\n\nAvailable for: Apple Watch Series 3 and later\n\nImpact: A local user may be able to create or modify system files\n\nDescription: A logic issue was addressed with improved state management.\n\nCVE-2021-1786: Csaba Fitzl (@theevilbit) of Offensive Security\n\nEntry added February 1, 2021\n\n**Crash Reporter**\n\nAvailable for: Apple Watch Series 3 and later\n\nImpact: A local attacker may be able to elevate their privileges\n\nDescription: Multiple issues were addressed with improved logic.\n\nCVE-2021-1787: James Hutchins\n\nEntry added February 1, 2021\n\n**FairPlay**\n\nAvailable for: Apple Watch Series 3 and later\n\nImpact: A malicious application may be able to disclose kernel memory\n\nDescription: An out-of-bounds read issue existed that led to the disclosure of kernel memory. This was addressed with improved input validation.\n\nCVE-2021-1791: Junzhi Lu (@pwn0rz), Qi Sun & Mickey Jin of Trend Micro\n\nEntry added February 1, 2021\n\n**FontParser**\n\nAvailable for: Apple Watch Series 3 and later\n\nImpact: A remote attacker may be able to cause arbitrary code execution\n\nDescription: An out-of-bounds read was addressed with improved bounds checking.\n\nCVE-2021-1758: Peter Nguyen of STAR Labs\n\nEntry added February 1, 2021\n\n**ImageIO**\n\nAvailable for: Apple Watch Series 3 and later\n\nImpact: Processing a maliciously crafted image may lead to a denial of service\n\nDescription: A logic issue was addressed with improved state management.\n\nCVE-2021-1773: Xingwei Lin of Ant Security Light-Year Lab\n\nEntry added February 1, 2021\n\n**ImageIO**\n\nAvailable for: Apple Watch Series 3 and later\n\nImpact: Processing a maliciously crafted image may lead to a denial of service\n\nDescription: This issue was addressed with improved checks.\n\nCVE-2021-1766: Danny Rosseau of Carve Systems\n\nEntry added February 1, 2021\n\n**ImageIO**\n\nAvailable for: Apple Watch Series 3 and later\n\nImpact: Processing a maliciously crafted image may lead to arbitrary code execution\n\nDescription: An out-of-bounds read was addressed with improved input validation.\n\nCVE-2021-1785: Xingwei Lin of Ant Security Light-Year Lab\n\nEntry added February 1, 2021\n\n**ImageIO**\n\nAvailable for: Apple Watch Series 3 and later\n\nImpact: Processing a maliciously crafted image may lead to arbitrary code execution\n\nDescription: An out-of-bounds write was addressed with improved input validation.\n\nCVE-2021-1744: Xingwei Lin of Ant Security Light-Year Lab\n\nEntry added February 1, 2021\n\n**ImageIO**\n\nAvailable for: Apple Watch Series 3 and later\n\nImpact: A remote attacker may be able to cause unexpected application termination or arbitrary code execution\n\nDescription: A logic issue was addressed with improved state management.\n\nCVE-2021-1818: Xingwei Lin from Ant-Financial Light-Year Security Lab\n\nEntry added February 1, 2021\n\n**ImageIO**\n\nAvailable for: Apple Watch Series 3 and later\n\nImpact: Processing a maliciously crafted image may lead to arbitrary code execution\n\nDescription: This issue was addressed with improved checks.\n\nCVE-2021-1746: Xingwei Lin of Ant Security Light-Year Lab, and Mickey Jin & Qi Sun of Trend Micro\n\nCVE-2021-1793: Xingwei Lin of Ant Security Light-Year Lab\n\nEntry added February 1, 2021\n\n**ImageIO**\n\nAvailable for: Apple Watch Series 3 and later\n\nImpact: Processing a maliciously crafted image may lead to arbitrary code execution\n\nDescription: An out-of-bounds read was addressed with improved bounds checking.\n\nCVE-2021-1741: Xingwei Lin of Ant Security Light-Year Lab\n\nCVE-2021-1743: Xingwei Lin of Ant Security Light-Year Lab, and Mickey Jin & Junzhi Lu of Trend Micro\n\nEntry added February 1, 2021\n\n**ImageIO**\n\nAvailable for: Apple Watch Series 3 and later\n\nImpact: Processing a maliciously crafted image may lead to a denial of service\n\nDescription: An out-of-bounds read issue existed in the curl. This issue was addressed with improved bounds checking.\n\nCVE-2021-1778: Xingwei Lin of Ant Security Light-Year Lab\n\nEntry added February 1, 2021\n\n**ImageIO**\n\nAvailable for: Apple Watch Series 3 and later\n\nImpact: Processing a maliciously crafted image may lead to arbitrary code execution\n\nDescription: An access issue was addressed with improved memory management.\n\nCVE-2021-1783: Xingwei Lin of Ant Security Light-Year Lab\n\nEntry added February 1, 2021\n\n**IOSkywalkFamily**\n\nAvailable for: Apple Watch Series 3 and later\n\nImpact: A local attacker may be able to elevate their privileges\n\nDescription: An out-of-bounds read was addressed with improved bounds checking.\n\nCVE-2021-1757: Proteas and Pan ZhenPeng (@Peterpan0927) of Alibaba Security\n\nEntry added February 1, 2021\n\n**iTunes Store**\n\nAvailable for: Apple Watch Series 3 and later\n\nImpact: Processing a maliciously crafted URL may lead to arbitrary javascript code execution\n\nDescription: A validation issue was addressed with improved input sanitization.\n\nCVE-2021-1748: CodeColorist of Ant-Financial Light-Year Labs\n\nEntry added February 1, 2021\n\n**Kernel**\n\nAvailable for: Apple Watch Series 3 and later\n\nImpact: A remote attacker may be able to cause a denial of service\n\nDescription: A use after free issue was addressed with improved memory management.\n\nCVE-2021-1764: Maxime Villard (m00nbsd)\n\nEntry added February 1, 2021\n\n**Kernel**\n\nAvailable for: Apple Watch Series 3 and later\n\nImpact: An application may be able to execute arbitrary code with kernel privileges\n\nDescription: Multiple issues were addressed with improved logic.\n\nCVE-2021-1750: @0xalsr\n\nEntry added February 1, 2021\n\n**Kernel**\n\nAvailable for: Apple Watch Series 3 and later\n\nImpact: A malicious application may be able to elevate privileges. Apple is aware of a report that this issue may have been actively exploited.\n\nDescription: A race condition was addressed with improved locking.\n\nCVE-2021-1782: an anonymous researcher\n\n**Swift**\n\nAvailable for: Apple Watch Series 3 and later\n\nImpact: A malicious attacker with arbitrary read and write capability may be able to bypass Pointer Authentication\n\nDescription: A logic issue was addressed with improved validation.\n\nCVE-2021-1769: CodeColorist of Ant-Financial Light-Year Labs\n\nEntry added February 1, 2021\n\n**WebKit**\n\nAvailable for: Apple Watch Series 3 and later\n\nImpact: Processing maliciously crafted web content may lead to arbitrary code execution\n\nDescription: A use after free issue was addressed with improved memory management.\n\nCVE-2021-1788: Francisco Alonso (@revskills)\n\nEntry added February 1, 2021\n\n**WebKit**\n\nAvailable for: Apple Watch Series 3 and later\n\nImpact: Processing maliciously crafted web content may lead to arbitrary code execution\n\nDescription: A type confusion issue was addressed with improved state handling.\n\nCVE-2021-1789: @S0rryMybad of 360 Vulcan Team\n\nEntry added February 1, 2021\n\n**WebKit**\n\nAvailable for: Apple Watch Series 3 and later\n\nImpact: Maliciously crafted web content may violate iframe sandboxing policy\n\nDescription: This issue was addressed with improved iframe sandbox enforcement.\n\nCVE-2021-1801: Eliya Stein of Confiant\n\nEntry added February 1, 2021\n\n**WebRTC**\n\nAvailable for: Apple Watch Series 3 and later\n\nImpact: A malicious website may be able to access restricted ports on arbitrary servers\n\nDescription: A port redirection issue was addressed with additional port validation.\n\nCVE-2021-1799: Gregory Vishnepolsky & Ben Seri of Armis Security, and Samy Kamkar\n\nEntry added February 1, 2021\n\n\n\n## Additional recognition\n\n**iTunes Store**\n\nWe would like to acknowledge CodeColorist of Ant-Financial Light-Year Labs for their assistance.\n\nEntry added February 1, 2021\n\n**Kernel**\n\nWe would like to acknowledge Junzhi Lu (@pwn0rz), Mickey Jin & Jesse Change of Trend Micro for their assistance.\n\nEntry added February 1, 2021\n\n**libpthread**\n\nWe would like to acknowledge CodeColorist of Ant-Financial Light-Year Labs for their assistance.\n\nEntry added February 1, 2021\n\n**Store Demo**\n\nWe would like to acknowledge @08Tc3wBB for their assistance.\n\nEntry added February 1, 2021\n", "edition": 2, "modified": "2021-02-01T06:39:19", "published": "2021-02-01T06:39:19", "id": "APPLE:HT212148", "href": "https://support.apple.com/kb/HT212148", "title": "About the security content of watchOS 7.3 - Apple Support", "type": "apple", "cvss": {"score": 0.0, "vector": "NONE"}}, {"lastseen": "2021-02-02T04:42:46", "bulletinFamily": "software", "cvelist": ["CVE-2021-1753", "CVE-2021-1818", "CVE-2021-1871", "CVE-2021-1772", "CVE-2021-1763", "CVE-2021-1778", "CVE-2021-1743", "CVE-2021-1769", "CVE-2021-1761", "CVE-2021-1762", "CVE-2021-1780", "CVE-2021-1792", "CVE-2021-1794", "CVE-2021-1757", "CVE-2021-1795", "CVE-2021-1744", "CVE-2021-1786", "CVE-2021-1791", "CVE-2021-1748", "CVE-2021-1773", "CVE-2021-1767", "CVE-2021-1758", "CVE-2021-1787", "CVE-2021-1760", "CVE-2021-1768", "CVE-2021-1870", "CVE-2021-1746", "CVE-2021-1745", "CVE-2021-1785", "CVE-2021-1759", "CVE-2021-1756", "CVE-2021-1741", "CVE-2021-1747", "CVE-2021-1801", "CVE-2021-1781", "CVE-2021-1799", "CVE-2021-1788", "CVE-2021-1782", "CVE-2021-1766", "CVE-2021-1783", "CVE-2021-1797", "CVE-2021-1793", "CVE-2021-1776", "CVE-2021-1789", "CVE-2021-1796", "CVE-2021-1764", "CVE-2021-1750"], "description": "## About Apple security updates\n\nFor our customers' protection, Apple doesn't disclose, discuss, or confirm security issues until an investigation has occurred and patches or releases are available. Recent releases are listed on the [Apple security updates](<https://support.apple.com/kb/HT201222>) page.\n\nApple security documents reference vulnerabilities by [CVE-ID](<http://cve.mitre.org/about/>) when possible.\n\nFor more information about security, see the [Apple Product Security](<https://support.apple.com/kb/HT201220>) page.\n\n\n\n## iOS 14.4 and iPadOS 14.4\n\nReleased January 26, 2021\n\n**Analytics**\n\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)\n\nImpact: A remote attacker may be able to cause a denial of service\n\nDescription: This issue was addressed with improved checks.\n\nCVE-2021-1761: Cees Elzinga\n\nEntry added February 1, 2021\n\n**APFS**\n\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)\n\nImpact: A local user may be able to read arbitrary files\n\nDescription: The issue was addressed with improved permissions logic.\n\nCVE-2021-1797: Thomas Tempelmann\n\nEntry added February 1, 2021\n\n**Bluetooth**\n\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)\n\nImpact: A remote attacker may be able to cause arbitrary code execution\n\nDescription: An out-of-bounds read was addressed with improved input validation.\n\nCVE-2021-1794: Jianjun Dai of 360 Alpha Lab\n\nEntry added February 1, 2021\n\n**Bluetooth**\n\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)\n\nImpact: A remote attacker may be able to cause arbitrary code execution\n\nDescription: An out-of-bounds write was addressed with improved input validation.\n\nCVE-2021-1795: Jianjun Dai of 360 Alpha Lab\n\nCVE-2021-1796: Jianjun Dai of 360 Alpha Lab\n\nEntry added February 1, 2021\n\n**Bluetooth**\n\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)\n\nImpact: An attacker in a privileged position may be able to perform a denial of service attack\n\nDescription: A memory initialization issue was addressed with improved memory handling.\n\nCVE-2021-1780: Jianjun Dai of 360 Alpha Lab\n\nEntry added February 1, 2021\n\n**CoreAnimation**\n\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)\n\nImpact: A malicious application could execute arbitrary code leading to compromise of user information\n\nDescription: A memory corruption issue was addressed with improved state management.\n\nCVE-2021-1760: @S0rryMybad of 360 Vulcan Team\n\nEntry added February 1, 2021\n\n**CoreAudio**\n\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)\n\nImpact: Processing maliciously crafted web content may lead to code execution\n\nDescription: An out-of-bounds write was addressed with improved input validation.\n\nCVE-2021-1747: JunDong Xie of Ant Security Light-Year Lab\n\nEntry added February 1, 2021\n\n**CoreGraphics**\n\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)\n\nImpact: Processing a maliciously crafted font file may lead to arbitrary code execution\n\nDescription: An out-of-bounds write issue was addressed with improved bounds checking.\n\nCVE-2021-1776: Ivan Fratric of Google Project Zero\n\nEntry added February 1, 2021\n\n**CoreMedia**\n\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)\n\nImpact: Processing a maliciously crafted image may lead to arbitrary code execution\n\nDescription: An out-of-bounds read was addressed with improved input validation.\n\nCVE-2021-1759: Hou JingYi (@hjy79425575) of Qihoo 360 CERT\n\nEntry added February 1, 2021\n\n**CoreText**\n\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)\n\nImpact: Processing a maliciously crafted text file may lead to arbitrary code execution\n\nDescription: A stack overflow was addressed with improved input validation.\n\nCVE-2021-1772: Mickey Jin of Trend Micro\n\nEntry added February 1, 2021\n\n**CoreText**\n\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)\n\nImpact: A remote attacker may be able to cause arbitrary code execution\n\nDescription: An out-of-bounds read was addressed with improved bounds checking.\n\nCVE-2021-1792: Mickey Jin & Junzhi Lu of Trend Micro\n\nEntry added February 1, 2021\n\n**Crash Reporter**\n\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)\n\nImpact: A local user may be able to create or modify system files\n\nDescription: A logic issue was addressed with improved state management.\n\nCVE-2021-1786: Csaba Fitzl (@theevilbit) of Offensive Security\n\nEntry added February 1, 2021\n\n**Crash Reporter**\n\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)\n\nImpact: A local attacker may be able to elevate their privileges\n\nDescription: Multiple issues were addressed with improved logic.\n\nCVE-2021-1787: James Hutchins\n\nEntry added February 1, 2021\n\n**FairPlay**\n\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)\n\nImpact: A malicious application may be able to disclose kernel memory\n\nDescription: An out-of-bounds read issue existed that led to the disclosure of kernel memory. This was addressed with improved input validation.\n\nCVE-2021-1791: Junzhi Lu (@pwn0rz), Qi Sun & Mickey Jin of Trend Micro\n\nEntry added February 1, 2021\n\n**FontParser**\n\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)\n\nImpact: A remote attacker may be able to cause arbitrary code execution\n\nDescription: An out-of-bounds read was addressed with improved bounds checking.\n\nCVE-2021-1758: Peter Nguyen of STAR Labs\n\nEntry added February 1, 2021\n\n**ImageIO**\n\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)\n\nImpact: Processing a maliciously crafted image may lead to a denial of service\n\nDescription: A logic issue was addressed with improved state management.\n\nCVE-2021-1773: Xingwei Lin of Ant Security Light-Year Lab\n\nEntry added February 1, 2021\n\n**ImageIO**\n\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)\n\nImpact: Processing a maliciously crafted image may lead to a denial of service\n\nDescription: This issue was addressed with improved checks.\n\nCVE-2021-1766: Danny Rosseau of Carve Systems\n\nEntry added February 1, 2021\n\n**ImageIO**\n\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)\n\nImpact: Processing a maliciously crafted image may lead to arbitrary code execution\n\nDescription: An out-of-bounds read was addressed with improved input validation.\n\nCVE-2021-1785: Xingwei Lin of Ant Security Light-Year Lab\n\nEntry added February 1, 2021\n\n**ImageIO**\n\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)\n\nImpact: Processing a maliciously crafted image may lead to arbitrary code execution\n\nDescription: An out-of-bounds write was addressed with improved input validation.\n\nCVE-2021-1744: Xingwei Lin of Ant Security Light-Year Lab\n\nEntry added February 1, 2021\n\n**ImageIO**\n\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)\n\nImpact: A remote attacker may be able to cause unexpected application termination or arbitrary code execution\n\nDescription: A logic issue was addressed with improved state management.\n\nCVE-2021-1818: Xingwei Lin from Ant-Financial Light-Year Security Lab\n\nEntry added February 1, 2021\n\n**ImageIO**\n\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)\n\nImpact: Processing a maliciously crafted image may lead to arbitrary code execution\n\nDescription: This issue was addressed with improved checks.\n\nCVE-2021-1746: Xingwei Lin of Ant Security Light-Year Lab, and Mickey Jin & Qi Sun of Trend Micro\n\nCVE-2021-1793: Xingwei Lin of Ant Security Light-Year Lab\n\nEntry added February 1, 2021\n\n**ImageIO**\n\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)\n\nImpact: Processing a maliciously crafted image may lead to arbitrary code execution\n\nDescription: An out-of-bounds read was addressed with improved bounds checking.\n\nCVE-2021-1741: Xingwei Lin of Ant Security Light-Year Lab\n\nCVE-2021-1743: Xingwei Lin of Ant Security Light-Year Lab, and Mickey Jin & Junzhi Lu of Trend Micro\n\nEntry added February 1, 2021\n\n**ImageIO**\n\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)\n\nImpact: Processing a maliciously crafted image may lead to a denial of service\n\nDescription: An out-of-bounds read issue existed in the curl. This issue was addressed with improved bounds checking.\n\nCVE-2021-1778: Xingwei Lin of Ant Security Light-Year Lab\n\nEntry added February 1, 2021\n\n**ImageIO**\n\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)\n\nImpact: Processing a maliciously crafted image may lead to arbitrary code execution\n\nDescription: An access issue was addressed with improved memory management.\n\nCVE-2021-1783: Xingwei Lin of Ant Security Light-Year Lab\n\nEntry added February 1, 2021\n\n**IOSkywalkFamily**\n\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)\n\nImpact: A local attacker may be able to elevate their privileges\n\nDescription: An out-of-bounds read was addressed with improved bounds checking.\n\nCVE-2021-1757: Proteas and Pan ZhenPeng (@Peterpan0927) of Alibaba Security\n\nEntry added February 1, 2021\n\n**iTunes Store**\n\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)\n\nImpact: Processing a maliciously crafted URL may lead to arbitrary javascript code execution\n\nDescription: A validation issue was addressed with improved input sanitization.\n\nCVE-2021-1748: CodeColorist of Ant-Financial Light-Year Labs\n\nEntry added February 1, 2021\n\n**Kernel**\n\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)\n\nImpact: A remote attacker may be able to cause a denial of service\n\nDescription: A use after free issue was addressed with improved memory management.\n\nCVE-2021-1764: Maxime Villard (@m00nbsd)\n\nEntry added February 1, 2021\n\n**Kernel**\n\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)\n\nImpact: An application may be able to execute arbitrary code with kernel privileges\n\nDescription: Multiple issues were addressed with improved logic.\n\nCVE-2021-1750: @0xalsr\n\nEntry added February 1, 2021\n\n**Kernel**\n\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)\n\nImpact: A malicious application may be able to elevate privileges. Apple is aware of a report that this issue may have been actively exploited.\n\nDescription: A race condition was addressed with improved locking.\n\nCVE-2021-1782: an anonymous researcher\n\n**Messages**\n\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)\n\nImpact: A malicious application may be able to leak sensitive user information\n\nDescription: A privacy issue existed in the handling of Contact cards. This was addressed with improved state management.\n\nCVE-2021-1781: Csaba Fitzl (@theevilbit) of Offensive Security\n\nEntry added February 1, 2021\n\n**Model I/O**\n\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)\n\nImpact: Processing a maliciously crafted USD file may lead to unexpected application termination or arbitrary code execution\n\nDescription: A buffer overflow was addressed with improved bounds checking.\n\nCVE-2021-1763: Mickey Jin of Trend Micro\n\nEntry added February 1, 2021\n\n**Model I/O**\n\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)\n\nImpact: Processing a maliciously crafted USD file may lead to unexpected application termination or arbitrary code execution\n\nDescription: An out-of-bounds read was addressed with improved bounds checking.\n\nCVE-2021-1768: Mickey Jin & Junzhi Lu of Trend Micro\n\nEntry added February 1, 2021\n\n**Model I/O**\n\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)\n\nImpact: Processing a maliciously crafted USD file may lead to unexpected application termination or arbitrary code execution\n\nDescription: An out-of-bounds read was addressed with improved input validation.\n\nCVE-2021-1745: Mickey Jin & Junzhi Lu of Trend Micro\n\nEntry added February 1, 2021\n\n**Model I/O**\n\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)\n\nImpact: Processing a maliciously crafted USD file may lead to unexpected application termination or arbitrary code execution\n\nDescription: An out-of-bounds write was addressed with improved input validation.\n\nCVE-2021-1762: Mickey Jin of Trend Micro\n\nEntry added February 1, 2021\n\n**Model I/O**\n\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)\n\nImpact: Processing a maliciously crafted image may lead to heap corruption\n\nDescription: This issue was addressed with improved checks.\n\nCVE-2021-1767: Mickey Jin & Junzhi Lu of Trend Micro\n\nEntry added February 1, 2021\n\n**Model I/O**\n\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)\n\nImpact: Processing a maliciously crafted image may lead to arbitrary code execution\n\nDescription: An out-of-bounds read was addressed with improved bounds checking.\n\nCVE-2021-1753: Mickey Jin of Trend Micro\n\nEntry added February 1, 2021\n\n**Phone Keypad**\n\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)\n\nImpact: An attacker with physical access to a device may be able to see private contact information\n\nDescription: A lock screen issue allowed access to contacts on a locked device. This issue was addressed with improved state management.\n\nCVE-2021-1756: Ryan Pickren (ryanpickren.com)\n\nEntry added February 1, 2021\n\n**Swift**\n\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)\n\nImpact: A malicious attacker with arbitrary read and write capability may be able to bypass Pointer Authentication\n\nDescription: A logic issue was addressed with improved validation.\n\nCVE-2021-1769: CodeColorist of Ant-Financial Light-Year Labs\n\nEntry added February 1, 2021\n\n**WebKit**\n\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)\n\nImpact: Processing maliciously crafted web content may lead to arbitrary code execution\n\nDescription: A use after free issue was addressed with improved memory management.\n\nCVE-2021-1788: Francisco Alonso (@revskills)\n\nEntry added February 1, 2021\n\n**WebKit**\n\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)\n\nImpact: Processing maliciously crafted web content may lead to arbitrary code execution\n\nDescription: A type confusion issue was addressed with improved state handling.\n\nCVE-2021-1789: @S0rryMybad of 360 Vulcan Team\n\nEntry added February 1, 2021\n\n**WebKit**\n\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)\n\nImpact: Maliciously crafted web content may violate iframe sandboxing policy\n\nDescription: This issue was addressed with improved iframe sandbox enforcement.\n\nCVE-2021-1801: Eliya Stein of Confiant\n\nEntry added February 1, 2021\n\n**WebKit**\n\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)\n\nImpact: A remote attacker may be able to cause arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.\n\nDescription: A logic issue was addressed with improved restrictions.\n\nCVE-2021-1871: an anonymous researcher\n\nCVE-2021-1870: an anonymous researcher\n\n**WebRTC**\n\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation)\n\nImpact: A malicious website may be able to access restricted ports on arbitrary servers\n\nDescription: A port redirection issue was addressed with additional port validation.\n\nCVE-2021-1799: Gregory Vishnepolsky & Ben Seri of Armis Security, and Samy Kamkar\n\nEntry added February 1, 2021\n\n\n\n## Additional recognition\n\n**iTunes Store**\n\nWe would like to acknowledge CodeColorist of Ant-Financial Light-Year Labs for their assistance.\n\nEntry added February 1, 2021\n\n**Kernel**\n\nWe would like to acknowledge Junzhi Lu (@pwn0rz), Mickey Jin & Jesse Change of Trend Micro for their assistance.\n\nEntry added February 1, 2021\n\n**libpthread**\n\nWe would like to acknowledge CodeColorist of Ant-Financial Light-Year Labs for their assistance.\n\nEntry added February 1, 2021\n\n**Mail**\n\nWe would like to acknowledge Yi\u011fit Can YILMAZ (@yilmazcanyigit) and an anonymous researcher for their assistance.\n\nEntry added February 1, 2021\n\n**Store Demo**\n\nWe would like to acknowledge @08Tc3wBB for their assistance.\n\nEntry added February 1, 2021\n\n**WebRTC**\n\nWe would like to acknowledge Philipp Hancke for their assistance.\n\nEntry added February 1, 2021\n\n**Wi-Fi**\n\nWe would like to acknowledge an anonymous researcher for their assistance.\n\nEntry added February 1, 2021\n", "edition": 2, "modified": "2021-02-01T06:39:19", "published": "2021-02-01T06:39:19", "id": "APPLE:HT212146", "href": "https://support.apple.com/kb/HT212146", "title": "About the security content of iOS 14.4 and iPadOS 14.4 - Apple Support", "type": "apple", "cvss": {"score": 0.0, "vector": "NONE"}}, {"lastseen": "2021-02-19T04:41:49", "bulletinFamily": "software", "cvelist": ["CVE-2021-1774", "CVE-2021-1736", "CVE-2021-1753", "CVE-2021-1775", "CVE-2021-1818", "CVE-2020-29614", "CVE-2021-1871", "CVE-2021-1772", "CVE-2021-1763", "CVE-2021-1778", "CVE-2021-1743", "CVE-2021-1769", "CVE-2021-1761", "CVE-2021-1762", "CVE-2021-1802", "CVE-2021-1792", "CVE-2020-14155", "CVE-2021-1757", "CVE-2021-1744", "CVE-2021-1786", "CVE-2021-1791", "CVE-2020-29633", "CVE-2021-1773", "CVE-2021-1767", "CVE-2021-1758", "CVE-2021-1777", "CVE-2021-1771", "CVE-2021-1787", "CVE-2021-1760", "CVE-2019-20838", "CVE-2021-1768", "CVE-2020-27938", "CVE-2021-1870", "CVE-2020-27904", "CVE-2021-1746", "CVE-2021-1745", "CVE-2021-1785", "CVE-2021-1759", "CVE-2021-1737", "CVE-2021-1742", "CVE-2021-1741", "CVE-2021-1747", "CVE-2021-1790", "CVE-2021-1801", "CVE-2020-29608", "CVE-2020-27945", "CVE-2021-1799", "CVE-2021-1788", "CVE-2021-1782", "CVE-2021-1766", "CVE-2021-1783", "CVE-2021-1779", "CVE-2021-1797", "CVE-2021-1738", "CVE-2020-25709", "CVE-2020-15358", "CVE-2021-1754", "CVE-2021-1765", "CVE-2021-1793", "CVE-2021-1776", "CVE-2021-1789", "CVE-2020-27937", "CVE-2021-1764", "CVE-2021-1751", "CVE-2021-1750"], "description": "## About Apple security updates\n\nFor our customers' protection, Apple doesn't disclose, discuss, or confirm security issues until an investigation has occurred and patches or releases are available. Recent releases are listed on the [Apple security updates](<https://support.apple.com/kb/HT201222>) page.\n\nApple security documents reference vulnerabilities by [CVE-ID](<http://cve.mitre.org/about/>) when possible.\n\nFor more information about security, see the [Apple Product Security](<https://support.apple.com/kb/HT201220>) page.\n\n\n\n## macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave\n\nReleased February 1, 2021\n\n**Analytics**\n\nAvailable for: macOS Big Sur 11.0.1, macOS Catalina 10.15.7, and macOS Mojave 10.14.6\n\nImpact: A remote attacker may be able to cause a denial of service\n\nDescription: This issue was addressed with improved checks.\n\nCVE-2021-1761: Cees Elzinga\n\n**APFS**\n\nAvailable for: macOS Big Sur 11.0.1\n\nImpact: A local user may be able to read arbitrary files\n\nDescription: The issue was addressed with improved permissions logic.\n\nCVE-2021-1797: Thomas Tempelmann\n\n**CFNetwork Cache**\n\nAvailable for: macOS Catalina 10.15.7 and macOS Mojave 10.14.6\n\nImpact: Processing maliciously crafted web content may lead to arbitrary code execution\n\nDescription: An integer overflow was addressed with improved input validation.\n\nCVE-2020-27945: Zhuo Liang of Qihoo 360 Vulcan Team\n\n**CoreAnimation**\n\nAvailable for: macOS Big Sur 11.0.1\n\nImpact: A malicious application could execute arbitrary code leading to compromise of user information\n\nDescription: A memory corruption issue was addressed with improved state management.\n\nCVE-2021-1760: @S0rryMybad of 360 Vulcan Team\n\n**CoreAudio**\n\nAvailable for: macOS Big Sur 11.0.1\n\nImpact: Processing maliciously crafted web content may lead to code execution\n\nDescription: An out-of-bounds write was addressed with improved input validation.\n\nCVE-2021-1747: JunDong Xie of Ant Security Light-Year Lab\n\n**CoreGraphics**\n\nAvailable for: macOS Big Sur 11.0.1, macOS Catalina 10.15.7, and macOS Mojave 10.14.6\n\nImpact: Processing a maliciously crafted font file may lead to arbitrary code execution\n\nDescription: An out-of-bounds write issue was addressed with improved bounds checking.\n\nCVE-2021-1776: Ivan Fratric of Google Project Zero\n\n**CoreMedia**\n\nAvailable for: macOS Big Sur 11.0.1\n\nImpact: Processing a maliciously crafted image may lead to arbitrary code execution\n\nDescription: An out-of-bounds read was addressed with improved input validation.\n\nCVE-2021-1759: Hou JingYi (@hjy79425575) of Qihoo 360 CERT\n\n**CoreText**\n\nAvailable for: macOS Big Sur 11.0.1, macOS Catalina 10.15.7, and macOS Mojave 10.14.6\n\nImpact: Processing a maliciously crafted text file may lead to arbitrary code execution\n\nDescription: A stack overflow was addressed with improved input validation.\n\nCVE-2021-1772: Mickey Jin of Trend Micro working with Trend Micro\u2019s Zero Day Initiative\n\n**CoreText**\n\nAvailable for: macOS Big Sur 11.0.1, macOS Catalina 10.15.7, and macOS Mojave 10.14.6\n\nImpact: A remote attacker may be able to cause arbitrary code execution\n\nDescription: An out-of-bounds read was addressed with improved bounds checking.\n\nCVE-2021-1792: Mickey Jin & Junzhi Lu of Trend Micro working with Trend Micro\u2019s Zero Day Initiative\n\n**Crash Reporter**\n\nAvailable for: macOS Catalina 10.15.7\n\nImpact: A remote attacker may be able to cause a denial of service\n\nDescription: This issue was addressed with improved checks.\n\nCVE-2021-1761: Cees Elzinga\n\n**Crash Reporter**\n\nAvailable for: macOS Big Sur 11.0.1, macOS Catalina 10.15.7, and macOS Mojave 10.14.6\n\nImpact: A local attacker may be able to elevate their privileges\n\nDescription: Multiple issues were addressed with improved logic.\n\nCVE-2021-1787: James Hutchins\n\n**Crash Reporter**\n\nAvailable for: macOS Big Sur 11.0.1, macOS Catalina 10.15.7, and macOS Mojave 10.14.6\n\nImpact: A local user may be able to create or modify system files\n\nDescription: A logic issue was addressed with improved state management.\n\nCVE-2021-1786: Csaba Fitzl (@theevilbit) of Offensive Security\n\n**Directory Utility**\n\nAvailable for: macOS Catalina 10.15.7\n\nImpact: A malicious application may be able to access private information\n\nDescription: A logic issue was addressed with improved state management.\n\nCVE-2020-27937: Wojciech Regu\u0142a (@_r3ggi) of SecuRing\n\n**Endpoint Security**\n\nAvailable for: macOS Catalina 10.15.7\n\nImpact: A local attacker may be able to elevate their privileges\n\nDescription: A logic issue was addressed with improved state management.\n\nCVE-2021-1802: Zhongcheng Li (@CK01) from WPS Security Response Center\n\n**FairPlay**\n\nAvailable for: macOS Big Sur 11.0.1\n\nImpact: A malicious application may be able to disclose kernel memory\n\nDescription: An out-of-bounds read issue existed that led to the disclosure of kernel memory. This was addressed with improved input validation.\n\nCVE-2021-1791: Junzhi Lu (@pwn0rz), Qi Sun & Mickey Jin of Trend Micro working with Trend Micro\u2019s Zero Day Initiative\n\n**FontParser**\n\nAvailable for: macOS Catalina 10.15.7\n\nImpact: Processing a maliciously crafted font may lead to arbitrary code execution\n\nDescription: An out-of-bounds read was addressed with improved input validation.\n\nCVE-2021-1790: Peter Nguyen Vu Hoang of STAR Labs\n\n**FontParser**\n\nAvailable for: macOS Mojave 10.14.6\n\nImpact: Processing a maliciously crafted font may lead to arbitrary code execution\n\nDescription: This issue was addressed by removing the vulnerable code.\n\nCVE-2021-1775: Mickey Jin and Qi Sun of Trend Micro\n\n**FontParser**\n\nAvailable for: macOS Mojave 10.14.6\n\nImpact: A remote attacker may be able to leak memory\n\nDescription: An out-of-bounds read was addressed with improved bounds checking.\n\nCVE-2020-29608: Xingwei Lin of Ant Security Light-Year Lab\n\n**FontParser**\n\nAvailable for: macOS Big Sur 11.0.1 and macOS Catalina 10.15.7\n\nImpact: A remote attacker may be able to cause arbitrary code execution\n\nDescription: An out-of-bounds read was addressed with improved bounds checking.\n\nCVE-2021-1758: Peter Nguyen of STAR Labs\n\n**ImageIO**\n\nAvailable for: macOS Big Sur 11.0.1\n\nImpact: Processing a maliciously crafted image may lead to arbitrary code execution\n\nDescription: An access issue was addressed with improved memory management.\n\nCVE-2021-1783: Xingwei Lin of Ant Security Light-Year Lab\n\n**ImageIO**\n\nAvailable for: macOS Big Sur 11.0.1\n\nImpact: Processing a maliciously crafted image may lead to arbitrary code execution\n\nDescription: An out-of-bounds read was addressed with improved bounds checking.\n\nCVE-2021-1741: Xingwei Lin of Ant Security Light-Year Lab\n\nCVE-2021-1743: Mickey Jin & Junzhi Lu of Trend Micro working with Trend Micro\u2019s Zero Day Initiative, Xingwei Lin of Ant Security Light-Year Lab\n\n** \nImageIO**\n\nAvailable for: macOS Big Sur 11.0.1\n\nImpact: Processing a maliciously crafted image may lead to a denial of service\n\nDescription: A logic issue was addressed with improved state management.\n\nCVE-2021-1773: Xingwei Lin of Ant Security Light-Year Lab\n\n**ImageIO**\n\nAvailable for: macOS Big Sur 11.0.1\n\nImpact: Processing a maliciously crafted image may lead to a denial of service\n\nDescription: An out-of-bounds read issue existed in the curl. This issue was addressed with improved bounds checking.\n\nCVE-2021-1778: Xingwei Lin of Ant Security Light-Year Lab\n\n**ImageIO**\n\nAvailable for: macOS Big Sur 11.0.1 and macOS Catalina 10.15.7\n\nImpact: Processing a maliciously crafted image may lead to arbitrary code execution\n\nDescription: An out-of-bounds read was addressed with improved input validation.\n\nCVE-2021-1736: Xingwei Lin of Ant Security Light-Year Lab\n\nCVE-2021-1785: Xingwei Lin of Ant Security Light-Year Lab\n\n**ImageIO**\n\nAvailable for: macOS Big Sur 11.0.1, macOS Catalina 10.15.7, and macOS Mojave 10.14.6\n\nImpact: Processing a maliciously crafted image may lead to a denial of service\n\nDescription: This issue was addressed with improved checks.\n\nCVE-2021-1766: Danny Rosseau of Carve Systems\n\n**ImageIO**\n\nAvailable for: macOS Big Sur 11.0.1 and macOS Catalina 10.15.7\n\nImpact: A remote attacker may be able to cause unexpected application termination or arbitrary code execution\n\nDescription: A logic issue was addressed with improved state management.\n\nCVE-2021-1818: Xingwei Lin from Ant-Financial Light-Year Security Lab\n\n**ImageIO**\n\nAvailable for: macOS Big Sur 11.0.1 and macOS Catalina 10.15.7\n\nImpact: Processing a maliciously crafted image may lead to arbitrary code execution\n\nDescription: This issue was addressed with improved checks.\n\nCVE-2021-1742: Xingwei Lin of Ant Security Light-Year Lab\n\nCVE-2021-1746: Mickey Jin & Qi Sun of Trend Micro, Xingwei Lin of Ant Security Light-Year Lab\n\nCVE-2021-1754: Xingwei Lin of Ant Security Light-Year Lab\n\nCVE-2021-1774: Xingwei Lin of Ant Security Light-Year Lab\n\nCVE-2021-1777: Xingwei Lin of Ant Security Light-Year Lab\n\nCVE-2021-1793: Xingwei Lin of Ant Security Light-Year Lab\n\n**ImageIO**\n\nAvailable for: macOS Big Sur 11.0.1 and macOS Catalina 10.15.7\n\nImpact: Processing a maliciously crafted image may lead to arbitrary code execution\n\nDescription: An out-of-bounds write was addressed with improved input validation.\n\nCVE-2021-1737: Xingwei Lin of Ant Security Light-Year Lab\n\nCVE-2021-1738: Lei Sun\n\nCVE-2021-1744: Xingwei Lin of Ant Security Light-Year Lab\n\n**IOKit**\n\nAvailable for: macOS Big Sur 11.0.1\n\nImpact: An application may be able to execute arbitrary code with system privileges\n\nDescription: A logic error in kext loading was addressed with improved state handling.\n\nCVE-2021-1779: Csaba Fitzl (@theevilbit) of Offensive Security\n\n**IOSkywalkFamily**\n\nAvailable for: macOS Big Sur 11.0.1\n\nImpact: A local attacker may be able to elevate their privileges\n\nDescription: An out-of-bounds read was addressed with improved bounds checking.\n\nCVE-2021-1757: Pan ZhenPeng (@Peterpan0927) of Alibaba Security, Proteas\n\n**Kernel**\n\nAvailable for: macOS Catalina 10.15.7 and macOS Mojave 10.14.6\n\nImpact: An application may be able to execute arbitrary code with kernel privileges\n\nDescription: A logic issue existed resulting in memory corruption. This was addressed with improved state management.\n\nCVE-2020-27904: Zuozhi Fan (@pattern_F_) of Ant Group Tianqiong Security Lab\n\n**Kernel**\n\nAvailable for: macOS Big Sur 11.0.1\n\nImpact: A remote attacker may be able to cause a denial of service\n\nDescription: A use after free issue was addressed with improved memory management.\n\nCVE-2021-1764: @m00nbsd\n\n**Kernel**\n\nAvailable for: macOS Big Sur 11.0.1, macOS Catalina 10.15.7, and macOS Mojave 10.14.6\n\nImpact: A malicious application may be able to elevate privileges. Apple is aware of a report that this issue may have been actively exploited.\n\nDescription: A race condition was addressed with improved locking.\n\nCVE-2021-1782: an anonymous researcher\n\n**Kernel**\n\nAvailable for: macOS Big Sur 11.0.1, macOS Catalina 10.15.7, and macOS Mojave 10.14.6\n\nImpact: An application may be able to execute arbitrary code with kernel privileges\n\nDescription: Multiple issues were addressed with improved logic.\n\nCVE-2021-1750: @0xalsr\n\n**Login Window**\n\nAvailable for: macOS Big Sur 11.0.1, macOS Catalina 10.15.7, and macOS Mojave 10.14.6\n\nImpact: An attacker in a privileged network position may be able to bypass authentication policy\n\nDescription: An authentication issue was addressed with improved state management.\n\nCVE-2020-29633: Jewel Lambert of Original Spin, LLC.\n\n**Messages**\n\nAvailable for: macOS Big Sur 11.0.1, macOS Catalina 10.15.7, and macOS Mojave 10.14.6\n\nImpact: A user that is removed from an iMessage group could rejoin the group\n\nDescription: This issue was addressed with improved checks.\n\nCVE-2021-1771: Shreyas Ranganatha (@strawsnoceans)\n\n**Model I/O**\n\nAvailable for: macOS Big Sur 11.0.1\n\nImpact: Processing a maliciously crafted USD file may lead to unexpected application termination or arbitrary code execution\n\nDescription: An out-of-bounds write was addressed with improved input validation.\n\nCVE-2021-1762: Mickey Jin of Trend Micro\n\n**Model I/O**\n\nAvailable for: macOS Catalina 10.15.7\n\nImpact: Processing a maliciously crafted file may lead to heap corruption\n\nDescription: This issue was addressed with improved checks.\n\nCVE-2020-29614: ZhiWei Sun (@5n1p3r0010) from Topsec Alpha Lab\n\n**Model I/O**\n\nAvailable for: macOS Big Sur 11.0.1, macOS Catalina 10.15.7, and macOS Mojave 10.14.6\n\nImpact: Processing a maliciously crafted USD file may lead to unexpected application termination or arbitrary code execution\n\nDescription: A buffer overflow was addressed with improved bounds checking.\n\nCVE-2021-1763: Mickey Jin of Trend Micro working with Trend Micro\u2019s Zero Day Initiative\n\n**Model I/O**\n\nAvailable for: macOS Big Sur 11.0.1, macOS Catalina 10.15.7, and macOS Mojave 10.14.6\n\nImpact: Processing a maliciously crafted image may lead to heap corruption\n\nDescription: This issue was addressed with improved checks.\n\nCVE-2021-1767: Mickey Jin & Junzhi Lu of Trend Micro working with Trend Micro\u2019s Zero Day Initiative\n\n**Model I/O**\n\nAvailable for: macOS Big Sur 11.0.1, macOS Catalina 10.15.7, and macOS Mojave 10.14.6\n\nImpact: Processing a maliciously crafted USD file may lead to unexpected application termination or arbitrary code execution\n\nDescription: An out-of-bounds read was addressed with improved input validation.\n\nCVE-2021-1745: Mickey Jin & Junzhi Lu of Trend Micro working with Trend Micro\u2019s Zero Day Initiative\n\n**Model I/O**\n\nAvailable for: macOS Big Sur 11.0.1, macOS Catalina 10.15.7, and macOS Mojave 10.14.6\n\nImpact: Processing a maliciously crafted image may lead to arbitrary code execution\n\nDescription: An out-of-bounds read was addressed with improved bounds checking.\n\nCVE-2021-1753: Mickey Jin of Trend Micro working with Trend Micro\u2019s Zero Day Initiative\n\n**Model I/O**\n\nAvailable for: macOS Big Sur 11.0.1, macOS Catalina 10.15.7, and macOS Mojave 10.14.6\n\nImpact: Processing a maliciously crafted USD file may lead to unexpected application termination or arbitrary code execution\n\nDescription: An out-of-bounds read was addressed with improved bounds checking.\n\nCVE-2021-1768: Mickey Jin & Junzhi Lu of Trend Micro working with Trend Micro\u2019s Zero Day Initiative\n\n**NetFSFramework**\n\nAvailable for: macOS Big Sur 11.0.1, macOS Catalina 10.15.7, and macOS Mojave 10.14.6\n\nImpact: Mounting a maliciously crafted Samba network share may lead to arbitrary code execution\n\nDescription: A logic issue was addressed with improved state management.\n\nCVE-2021-1751: Mikko Kentt\u00e4l\u00e4 (@Turmio_) of SensorFu\n\n**OpenLDAP**\n\nAvailable for: macOS Big Sur 11.0.1, macOS Catalina 10.15.7, and macOS Mojave 10.14.6\n\nImpact: A remote attacker may be able to cause a denial of service\n\nDescription: This issue was addressed with improved checks.\n\nCVE-2020-25709\n\n**Power Management**\n\nAvailable for: macOS Mojave 10.14.6, macOS Catalina 10.15.7\n\nImpact: A malicious application may be able to elevate privileges\n\nDescription: A logic issue was addressed with improved state management.\n\nCVE-2020-27938: Tim Michaud (@TimGMichaud) of Leviathan\n\n**Screen Sharing**\n\nAvailable for: macOS Big Sur 11.0.1\n\nImpact: Multiple issues in pcre\n\nDescription: Multiple issues were addressed by updating to version 8.44.\n\nCVE-2019-20838\n\nCVE-2020-14155\n\n**SQLite**\n\nAvailable for: macOS Catalina 10.15.7\n\nImpact: Multiple issues in SQLite\n\nDescription: Multiple issues were addressed with improved checks.\n\nCVE-2020-15358\n\n**Swift**\n\nAvailable for: macOS Big Sur 11.0.1\n\nImpact: A malicious attacker with arbitrary read and write capability may be able to bypass Pointer Authentication\n\nDescription: A logic issue was addressed with improved validation.\n\nCVE-2021-1769: CodeColorist of Ant-Financial Light-Year Labs\n\n**WebKit**\n\nAvailable for: macOS Big Sur 11.0.1\n\nImpact: Processing maliciously crafted web content may lead to arbitrary code execution\n\nDescription: A use after free issue was addressed with improved memory management.\n\nCVE-2021-1788: Francisco Alonso (@revskills)\n\n**WebKit**\n\nAvailable for: macOS Big Sur 11.0.1\n\nImpact: Maliciously crafted web content may violate iframe sandboxing policy\n\nDescription: This issue was addressed with improved iframe sandbox enforcement.\n\nCVE-2021-1765: Eliya Stein of Confiant\n\nCVE-2021-1801: Eliya Stein of Confiant\n\n**WebKit**\n\nAvailable for: macOS Big Sur 11.0.1\n\nImpact: Processing maliciously crafted web content may lead to arbitrary code execution\n\nDescription: A type confusion issue was addressed with improved state handling.\n\nCVE-2021-1789: @S0rryMybad of 360 Vulcan Team\n\n**WebKit**\n\nAvailable for: macOS Big Sur 11.0.1\n\nImpact: A remote attacker may be able to cause arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.\n\nDescription: A logic issue was addressed with improved restrictions.\n\nCVE-2021-1871: an anonymous researcher\n\nCVE-2021-1870: an anonymous researcher\n\n**WebRTC**\n\nAvailable for: macOS Big Sur 11.0.1\n\nImpact: A malicious website may be able to access restricted ports on arbitrary servers\n\nDescription: A port redirection issue was addressed with additional port validation.\n\nCVE-2021-1799: Gregory Vishnepolsky & Ben Seri of Armis Security, and Samy Kamkar\n\n\n\n## Additional recognition\n\n**Kernel**\n\nWe would like to acknowledge Junzhi Lu (@pwn0rz), Mickey Jin & Jesse Change of Trend Micro for their assistance.\n\n**libpthread**\n\nWe would like to acknowledge CodeColorist of Ant-Financial Light-Year Labs for their assistance.\n\n**Login Window**\n\nWe would like to acknowledge Jose Moises Romero-Villanueva of CrySolve for their assistance.\n\n**Mail Drafts**\n\nWe would like to acknowledge Jon Bottarini of HackerOne for their assistance.\n\n**Screen Sharing Server**\n\nWe would like to acknowledge @gorelics for their assistance.\n\n**WebRTC**\n\nWe would like to acknowledge Philipp Hancke for their assistance.\n", "edition": 2, "modified": "2021-02-18T06:14:03", "published": "2021-02-18T06:14:03", "id": "APPLE:HT212147", "href": "https://support.apple.com/kb/HT212147", "title": "About the security content of macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave - Apple Support", "type": "apple", "cvss": {"score": 9.3, "vector": "AV:N/AC:M/Au:N/C:C/I:C/A:C"}}], "nessus": [{"lastseen": "2021-02-09T19:49:00", "description": "The remote host is running a version of macOS / Mac OS X that is 10.14.x prior to 10.14.6 Security Update 2021-001\nMojave, 10.15.x prior to 10.15.7 Security Update 2021-001 Catalina, or 11.x prior to 11.2. It is, therefore, affected by\nmultiple vulnerabilities, including the following:\n\n - A logic issue existed resulting in memory corruption. This was addressed with improved state management.\n An application may be able to execute arbitrary code with kernel privileges. (CVE-2020-27904)\n\n - A logic issue existed that allowed applications to execute arbitrary code with kernel privileges.\n (CVE-2021-1750)\n\n - An out-of-bounds-write caused by improper input validation allowed maliciously crafted USD files to\n unexpectedly terminate an application or cause arbitrary code execution. (CVE-2021-1762)\n\nNote that Nessus has not tested for this issue but has instead relied only on the operating system's self-reported\nversion number.", "edition": 3, "cvss3": {"score": 7.8, "vector": "AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"}, "published": "2021-02-03T00:00:00", "title": "macOS 10.14.x < 10.14.6 Security Update 2021-001 / 10.15.x < 10.15.7 Security Update 2021-001 / macOS 11.x < 11.2 (HT212147)", "type": "nessus", "bulletinFamily": "scanner", "cvelist": ["CVE-2021-1774", "CVE-2021-1736", "CVE-2021-1753", "CVE-2021-1775", "CVE-2021-1818", "CVE-2020-29614", "CVE-2021-1871", "CVE-2021-1772", "CVE-2021-1763", "CVE-2021-1778", "CVE-2021-1743", "CVE-2021-1769", "CVE-2021-1761", "CVE-2021-1762", "CVE-2021-1802", "CVE-2021-1792", "CVE-2020-14155", "CVE-2021-1757", "CVE-2021-1744", "CVE-2021-1786", "CVE-2021-1791", "CVE-2020-29633", "CVE-2021-1773", "CVE-2021-1767", "CVE-2021-1758", "CVE-2021-1777", "CVE-2021-1771", "CVE-2021-1787", "CVE-2021-1760", "CVE-2019-20838", "CVE-2021-1768", "CVE-2020-27938", "CVE-2021-1870", "CVE-2020-27904", "CVE-2021-1746", "CVE-2021-1745", "CVE-2021-1785", "CVE-2021-1759", "CVE-2021-1737", "CVE-2021-1742", "CVE-2021-1741", "CVE-2021-1747", "CVE-2021-1790", "CVE-2021-1801", "CVE-2020-29608", "CVE-2020-27945", "CVE-2021-1799", "CVE-2021-1788", "CVE-2021-1782", "CVE-2021-1766", "CVE-2021-1783", "CVE-2021-1779", "CVE-2021-1797", "CVE-2021-1738", "CVE-2020-25709", "CVE-2020-15358", "CVE-2021-1754", "CVE-2021-1765", "CVE-2021-1793", "CVE-2021-1776", "CVE-2021-1789", "CVE-2020-27937", "CVE-2021-1764", "CVE-2021-1751", "CVE-2021-1750"], "modified": "2021-02-03T00:00:00", "cpe": ["cpe:/o:apple:macos", "cpe:/o:apple:mac_os_x"], "id": "MACOS_HT212147.NASL", "href": "https://www.tenable.com/plugins/nessus/146086", "sourceData": "##\n# (C) Tenable Network Security, Inc.\n##\n\ninclude('compat.inc');\n\nif (description)\n{\n script_id(146086);\n script_version(\"1.3\");\n script_set_attribute(attribute:\"plugin_modification_date\", value:\"2021/02/08\");\n\n script_cve_id(\n \"CVE-2019-20838\",\n \"CVE-2020-14155\",\n \"CVE-2020-15358\",\n \"CVE-2020-25709\",\n \"CVE-2020-27904\",\n \"CVE-2020-27937\",\n \"CVE-2020-27938\",\n \"CVE-2020-27945\",\n \"CVE-2020-29608\",\n \"CVE-2020-29614\",\n \"CVE-2020-29633\",\n \"CVE-2021-1736\",\n \"CVE-2021-1737\",\n \"CVE-2021-1738\",\n \"CVE-2021-1741\",\n \"CVE-2021-1742\",\n \"CVE-2021-1743\",\n \"CVE-2021-1744\",\n \"CVE-2021-1745\",\n \"CVE-2021-1746\",\n \"CVE-2021-1747\",\n \"CVE-2021-1750\",\n \"CVE-2021-1751\",\n \"CVE-2021-1753\",\n \"CVE-2021-1754\",\n \"CVE-2021-1757\",\n \"CVE-2021-1758\",\n \"CVE-2021-1759\",\n \"CVE-2021-1760\",\n \"CVE-2021-1761\",\n \"CVE-2021-1762\",\n \"CVE-2021-1763\",\n \"CVE-2021-1764\",\n \"CVE-2021-1765\",\n \"CVE-2021-1766\",\n \"CVE-2021-1767\",\n \"CVE-2021-1768\",\n \"CVE-2021-1769\",\n \"CVE-2021-1771\",\n \"CVE-2021-1772\",\n \"CVE-2021-1773\",\n \"CVE-2021-1774\",\n \"CVE-2021-1775\",\n \"CVE-2021-1776\",\n \"CVE-2021-1777\",\n \"CVE-2021-1778\",\n \"CVE-2021-1779\",\n \"CVE-2021-1782\",\n \"CVE-2021-1783\",\n \"CVE-2021-1785\",\n \"CVE-2021-1786\",\n \"CVE-2021-1787\",\n \"CVE-2021-1788\",\n \"CVE-2021-1789\",\n \"CVE-2021-1790\",\n \"CVE-2021-1791\",\n \"CVE-2021-1792\",\n \"CVE-2021-1793\",\n \"CVE-2021-1797\",\n \"CVE-2021-1799\",\n \"CVE-2021-1801\",\n \"CVE-2021-1802\",\n \"CVE-2021-1818\",\n \"CVE-2021-1870\",\n \"CVE-2021-1871\"\n );\n script_xref(name:\"APPLE-SA\", value:\"HT212147\");\n script_xref(name:\"APPLE-SA\", value:\"APPLE-SA-2021-02-01-1\");\n script_xref(name:\"IAVA\", value:\"2021-A-0058\");\n\n script_name(english:\"macOS 10.14.x < 10.14.6 Security Update 2021-001 / 10.15.x < 10.15.7 Security Update 2021-001 / macOS 11.x < 11.2 (HT212147)\");\n\n script_set_attribute(attribute:\"synopsis\", value:\n\"The remote host is missing a macOS security update.\");\n script_set_attribute(attribute:\"description\", value:\n\"The remote host is running a version of macOS / Mac OS X that is 10.14.x prior to 10.14.6 Security Update 2021-001\nMojave, 10.15.x prior to 10.15.7 Security Update 2021-001 Catalina, or 11.x prior to 11.2. 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Observing that the code seemed different than a typical malvertising tactic of trying “to spray a bunch of redirect attempts in a single payload that try to do the redirect in different ways,” researchers investigated by staging a simple HTML file that implemented a cross-origin sandboxed frame and a button that dispatched their event.