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ubuntuUbuntuUSN-4926-1
HistoryApr 26, 2021 - 12:00 a.m.

Firefox vulnerabilities

2021-04-2600:00:00
ubuntu.com
105

8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

8.7 High

AI Score

Confidence

Low

6.8 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

0.003 Low

EPSS

Percentile

71.2%

JSON

Releases

  • Ubuntu 21.04
  • Ubuntu 20.10
  • Ubuntu 20.04 LTS
  • Ubuntu 18.04 ESM
  • Ubuntu 16.04 ESM

Packages

  • firefox - Mozilla Open Source web browser

Details

Multiple security issues were discovered in Firefox. If a user were
tricked into opening a specially crafted website, an attacker could
potentially exploit these to cause a denial of service, spoof the
browser UI, bypass security restrictions, trick the user into disclosing
confidential information, or execute arbitrary code. (CVE-2021-23994,
CVE-2021-23996, CVE-2021-23997, CVE-2021-23998, CVE-2021-23999,
CVE-2021-24000, CVE-2021-24001, CVE-2021-29945, CVE-2021-29946,
CVE-2021-29947)

A use-after-free was discovered when Responsive Design Mode was
enabled. If a user were tricked into opening a specially crafted
website with Responsive Design Mode enabled, an attacker could
potentially exploit this to cause a denial of service, or execute
arbitrary code. (CVE-2021-23995)

It was discovered that Firefox mishandled ftp URLs with encoded newline
characters. If a user were tricked into clicking on a specially crafted
link, an attacker could potentially exploit this to send arbitrary
FTP commands. (CVE-2021-24002)

OSVersionArchitecturePackageVersionFilename
Ubuntu21.04noarchfirefox< 88.0+build2-0ubuntu0.21.04.1UNKNOWN
Ubuntu21.04noarchfirefox-dbg< 88.0+build2-0ubuntu0.21.04.1UNKNOWN
Ubuntu21.04noarchfirefox-dev< 88.0+build2-0ubuntu0.21.04.1UNKNOWN
Ubuntu21.04noarchfirefox-geckodriver< 88.0+build2-0ubuntu0.21.04.1UNKNOWN
Ubuntu21.04noarchfirefox-locale-af< 88.0+build2-0ubuntu0.21.04.1UNKNOWN
Ubuntu21.04noarchfirefox-locale-an< 88.0+build2-0ubuntu0.21.04.1UNKNOWN
Ubuntu21.04noarchfirefox-locale-ar< 88.0+build2-0ubuntu0.21.04.1UNKNOWN
Ubuntu21.04noarchfirefox-locale-as< 88.0+build2-0ubuntu0.21.04.1UNKNOWN
Ubuntu21.04noarchfirefox-locale-ast< 88.0+build2-0ubuntu0.21.04.1UNKNOWN
Ubuntu21.04noarchfirefox-locale-az< 88.0+build2-0ubuntu0.21.04.1UNKNOWN
Rows per page:
1-10 of 4921

Related

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nessus 39
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openvas 22
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mozilla 3
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almalinux 2
threatpost 1
ibm 2
amazon 1
gentoo 2
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veracode 12
prion 12
cve 12
debiancve 12
alpinelinux 12
ubuntucve 12
redhatcve 7
osv
osv
firefox vulnerabilities
2021-04-26 10:44:42
firefox-esr - security update
2021-04-20 00:00:00
firefox-esr - security update
2021-04-23 00:00:00
nessus
nessus
Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS : Firefox vulnerabilities (USN-4926-1)
2021-04-26 00:00:00
Mozilla Firefox < 88.0
2021-04-19 00:00:00
Mozilla Firefox < 88.0
2021-04-19 00:00:00
redos
redos
ROS-2-464
2021-09-08 00:00:00
ROS-2-610
2021-09-08 00:00:00
ROS-2-657
2021-09-08 00:00:00
openvas
openvas
Ubuntu: Security Advisory (USN-4926-1)
2021-04-27 00:00:00
Mozilla Firefox Security Advisories (MFSA2021-13, MFSA2021-16) - Windows
2021-04-20 00:00:00
Mozilla Firefox Security Advisory (MFSA2021-16) - Linux
2021-11-08 00:00:00
archlinux
archlinux
[ASA-202104-3] firefox: multiple issues
2021-04-29 00:00:00
[ASA-202104-4] thunderbird: multiple issues
2021-04-29 00:00:00
kaspersky
kaspersky
KLA12149 Multiple vulnerabilities in Mozilla Firefox
2021-04-19 00:00:00
KLA12150 Multiple vulnerabilities in Mozilla Firefox ESR
2021-04-19 00:00:00
KLA12148 Multiple vulnerabilities in Mozilla Thunderbird
2021-04-19 00:00:00
mozilla
mozilla
Security Vulnerabilities fixed in Firefox 88 — Mozilla
2021-04-19 00:00:00
Security Vulnerabilities fixed in Firefox ESR 78.10 — Mozilla
2021-04-19 00:00:00
Security Vulnerabilities fixed in Thunderbird 78.10 — Mozilla
2021-04-19 00:00:00
oraclelinux
oraclelinux
firefox security update
2021-04-27 00:00:00
firefox security update
2021-04-27 00:00:00
thunderbird security update
2021-04-27 00:00:00
mageia
mageia
Updated firefox packages fix security vulnerabilities
2021-04-29 12:41:35
Updated thunderbird packages fix security vulnerabilities
2021-04-29 12:41:35
suse
suse
Security update for MozillaFirefox (important)
2021-04-26 00:00:00
Security update for MozillaThunderbird (important)
2021-05-01 00:00:00
altlinux
altlinux
Security fix for the ALT Linux 10 package firefox-esr version 78.10.0-alt1
2021-04-21 00:00:00
Security fix for the ALT Linux 10 package thunderbird version 78.10.0-alt1
2021-04-26 00:00:00
redhat
redhat
(RHSA-2021:1363) Important: firefox security update
2021-04-26 10:29:25
(RHSA-2021:1362) Important: firefox security update
2021-04-26 10:29:17
(RHSA-2021:1361) Important: firefox security update
2021-04-26 10:29:12
debian
debian
[SECURITY] [DSA 4895-1] firefox-esr security update
2021-04-20 18:17:37
[SECURITY] [DLA 2633-1] firefox-esr security update
2021-04-23 10:43:12
[SECURITY] [DSA 4897-1] thunderbird security update
2021-04-22 09:31:32
almalinux
almalinux
Important: firefox security update
2021-04-26 10:29:07
Important: thunderbird security update
2021-04-26 05:03:41
threatpost
threatpost
Mozilla Fixes Firefox Flaw That Allowed Spoofing of HTTPS Browser Padlock
2021-04-20 20:40:09
ibm
ibm
Security Bulletin: IBM Cloud Pak for Multicloud Management Monitoring has applied security fixes for its use of Mozilla Firefox
2021-12-01 15:06:50
Security Bulletin: Multiple vulnerabilities of Mozilla Firefox (less than Firefox 78.14.0 ESR + CVE-2021-29967) have affected Synthetic Playback Agent 8.1.4.0-8.1.4 IF14
2021-09-28 16:45:14
amazon
amazon
Important: thunderbird
2021-05-20 17:05:00
gentoo
gentoo
Mozilla Thunderbird: Multiple vulnerabilities
2021-04-30 00:00:00
Mozilla Firefox: Multiple vulnerabilities
2021-04-30 00:00:00
ubuntu
ubuntu
Thunderbird vulnerabilities
2021-06-25 00:00:00
Thunderbird vulnerabilities
2021-06-22 00:00:00
veracode
veracode
Sandbox Escape
2021-04-22 04:51:07
Arbitrary Code Execution
2021-04-21 18:13:46
Information Disclosure
2021-04-22 04:51:04
prion
prion
Type confusion
2021-06-24 14:15:00
Race condition
2021-06-24 14:15:00
Spoofing
2021-06-24 14:15:00
cve
cve
CVE-2021-24001
2021-06-24 14:15:00
CVE-2021-29947
2021-06-24 14:15:00
CVE-2021-23997
2021-06-24 14:15:00
debiancve
debiancve
CVE-2021-23997
2021-06-24 14:15:00
CVE-2021-24000
2021-06-24 14:15:00
CVE-2021-29947
2021-06-24 14:15:00
alpinelinux
alpinelinux
CVE-2021-23996
2021-06-24 14:15:00
CVE-2021-23997
2021-06-24 14:15:00
CVE-2021-24001
2021-06-24 14:15:00
ubuntucve
ubuntucve
CVE-2021-24001
2021-04-19 00:00:00
CVE-2021-24000
2021-04-19 00:00:00
CVE-2021-23997
2021-04-19 00:00:00
redhatcve
redhatcve
CVE-2021-23998
2021-04-20 03:20:52
CVE-2021-29945
2021-04-20 03:21:01
CVE-2021-23999
2021-04-20 03:20:53

8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

8.7 High

AI Score

Confidence

Low

6.8 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

0.003 Low

EPSS

Percentile

71.2%

JSON
Related for USN-4926-1
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