OpenPGP、S/MIME information disclosure (CVE-2017-17688,CVE-2017-17689)

EFAIL describes vulnerabilities in the end-to-end encryption technologies OpenPGP and S/MIME that leak the plaintext of encrypted emails. Email is a plaintext communication medium whose communication paths are partly protected by TLS TLS. For people in hostile environments journalists, political...

EFAIL Opens Up Encrypted Email to Prying Eyes

A set of vulnerabilities in the encryption technologies used to secure sensitive emails threatens to expose corporate communications as well as the messages of at-risk users such as journalists, political dissidents and whistleblowers operating in hostile environments. However, there is some deba...

Details on a New PGP Vulnerability

A new PGP vulnerability was announced today. Basically, the vulnerability makes use of the fact that modern e-mail programs allow for embedded HTML objects. Essentially, if an attacker can intercept and modify a message in transit, he can insert code that sends the plaintext in a URL to a remote...

Here's How eFail Attack Works Against PGP and S/MIME Encrypted Emails

With a heavy heart, security researchers have early released the details of a set of vulnerabilities discovered in email clients for two widely used email encryption standards—PGP and S/MIME—after someone leaked their paper on the Internet, which was actually scheduled for tomorrow. PGP and S/MIM...

PGP and S/MIME protected emails prone to exposure

By Waqas PGP and S/MIME protocols are used to ensure that emails This is a post from HackRead.com Read the original post: PGP and S/MIME protected emails prone to exposure...

Critical PGP Vulnerability

EFF is reporting that a critical vulnerability has been discovered in PGP and S/MIME. No details have been published yet, but one of the researchers wrote: We'll publish critical vulnerabilities in PGP/GPG and S/MIME email encryption on 2018-05-15 07:00 UTC. They might reveal the plaintext of...

CVE-2017-17689

The S/MIME specification allows a Cipher Block Chaining CBC malleability-gadget attack that can indirectly lead to plaintext exfiltration, aka EFAIL. Mitigation The easiest way to mitigate this vulnerability is not to use HTML emails. If you really need to use them ensure that MUA clients disable...

Critical Flaws in PGP and S/MIME Tools Can Reveal Encrypted Emails in Plaintext

Note—the technical details of the vulnerabilities introduced in this article has now been released, so you should also read our latest article to learn how the eFail attack works and what users can do to prevent themselves. An important warning for people using widely used email encryption...

OpenPGP, S/MIME Mail Client Vulnerabilities

The CERT Coordination Center CERT/CC has released information on email client vulnerabilities that can reveal plaintext versions of OpenPGP- and S/MIME-encrypted emails. A remote attacker could exploit these vulnerabilities to obtain sensitive information. NCCIC encourages users and administrator...

OpenPGP and S/MIME mail client vulnerabilities

Overview Mail clients may leak plaintext messages while decrypting OpenPGP and S/MIME messages. Description Email clients supporting the OpenPGP or S/MIME standards may be vulnerable to a CBC/CFB gadget attack which may allow an attacker to inject content into an encrypted email which would...

CVE-2018-5164

Content Security Policy CSP is not applied correctly to all parts of multipart content sent with the "multipart/x-mixed-replace" MIME type. This could allow for script to run where CSP should block it, allowing for cross-site scripting XSS and other attacks. This vulnerability affects Firefox 60...

[SECURITY] Fedora 27 Update: roundcubemail-1.3.6-1.fc27

RoundCube Webmail is a browser-based multilingual IMAP client with an application-like user interface. It provides full functionality you expect from an e-mail client, including MIME support, address book, folder manipulation, message searching and spell checking. RoundCube Webmail is written in...

[SECURITY] Fedora 26 Update: gnupg2-2.2.6-1.fc26

GnuPG is GNU's tool for secure communication and data storage. It can be used to encrypt data and to create digital signatures. It includes an advanced key management facility and is compliant with the proposed OpenPGP Internet standard as described in RFC2440 and the S/MIME standard as described...

[SECURITY] Fedora 27 Update: gnupg2-2.2.6-1.fc27

GnuPG is GNU's tool for secure communication and data storage. It can be used to encrypt data and to create digital signatures. It includes an advanced key management facility and is compliant with the proposed OpenPGP Internet standard as described in RFC2440 and the S/MIME standard as described...

[SECURITY] Fedora 28 Update: gnupg2-2.2.6-1.fc28

GnuPG is GNU's tool for secure communication and data storage. It can be used to encrypt data and to create digital signatures. It includes an advanced key management facility and is compliant with the proposed OpenPGP Internet standard as described in RFC2440 and the S/MIME standard as described...

CVE-2018-4174

An issue was discovered in certain Apple products. iOS before 11.3 is affected. macOS before 10.13.4 is affected. The issue involves the "Mail" component. It allows man-in-the-middle attackers to read S/MIME encrypted messages by leveraging an inconsistency in the user interface...

CVE-2018-4111

An issue was discovered in certain Apple products. macOS before 10.13.4 is affected. The issue involves the "Mail" component. It allows man-in-the-middle attackers to read S/MIME encrypted message content by sending HTML e-mail that references remote resources but lacks a valid S/MIME signature...

CVE-2018-4111

An issue was discovered in certain Apple products. macOS before 10.13.4 is affected. The issue involves the "Mail" component. It allows man-in-the-middle attackers to read S/MIME encrypted message content by sending HTML e-mail that references remote resources but lacks a valid S/MIME signature...

Design/Logic Flaw

An issue was discovered in certain Apple products. macOS before 10.13.4 is affected. The issue involves the "Mail" component. It allows man-in-the-middle attackers to read S/MIME encrypted message content by sending HTML e-mail that references remote resources but lacks a valid S/MIME signature...

Design/Logic Flaw

An issue was discovered in certain Apple products. iOS before 11.3 is affected. macOS before 10.13.4 is affected. The issue involves the "Mail" component. It allows man-in-the-middle attackers to read S/MIME encrypted messages by leveraging an inconsistency in the user interface...