CVE-2021-43534
published 2021-12-08CVE-2021-43534: Mozilla developers and community members reported memory safety bugs present in Firefox 93 and Firefox ESR 91.2. Some of these bugs showed evidence of memory…
PriorityP342high8.8CVSS 3.1
AVNACLPRNUIRSUCHIHAH
EPSS
1.21%
64.6th percentile
Mozilla developers and community members reported memory safety bugs present in Firefox 93 and Firefox ESR 91.2. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.
Affected
19 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | debian_linux | — | — |
| debian | debian_linux | — | — |
| debian | firefox | < firefox 94.0-1 (sid) | firefox 94.0-1 (sid) |
| debian | firefox-esr | < firefox 94.0-1 (sid) | firefox 94.0-1 (sid) |
| debian | thunderbird | < firefox 94.0-1 (sid) | firefox 94.0-1 (sid) |
| mozilla | firefox | < 94.0 | 94.0 |
| mozilla | firefox | — | — |
| mozilla | firefox | >= unspecified < 94 | 94 |
| mozilla | firefox_esr | < 91.3.0 | 91.3.0 |
| mozilla | firefox_esr | >= unspecified < 91.3 | 91.3 |
| mozilla | thunderbird | < 91.3.0 | 91.3.0 |
| mozilla | thunderbird | >= 0 < 1:91.4.1-1~deb11u1 | 1:91.4.1-1~deb11u1 |
| mozilla | thunderbird | >= 0 < 1:91.3.0-1 | 1:91.3.0-1 |
| mozilla | thunderbird | >= 0 < 1:91.3.0-1 | 1:91.3.0-1 |
| mozilla | thunderbird | >= 0 < 1:91.3.0-1 | 1:91.3.0-1 |
| mozilla | thunderbird | >= 0 < 1:91.5.0+build1-0ubuntu0.18.04.1 | 1:91.5.0+build1-0ubuntu0.18.04.1 |
| mozilla | thunderbird | >= 0 < 1:91.5.0+build1-0ubuntu0.20.04.1 | 1:91.5.0+build1-0ubuntu0.20.04.1 |
| mozilla | thunderbird | >= unspecified < 91.3 | 91.3 |
CVSS provenance
nvdv3.18.8HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
nvdv2.06.8MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:P
osv8.8HIGH
vendor_debian8.8HIGH
vendor_redhat8.8HIGH
vendor_ubuntu8.8HIGH
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OSV
thunderbird vulnerabilities
osv·2022-01-21·CVSS 8.8
CVE-2021-4129 [HIGH] thunderbird vulnerabilities
thunderbird vulnerabilities
Multiple security issues were discovered in Thunderbird. If a user were
tricked into opening a specially crafted website in a browsing context, an
attacker could potentially exploit these to cause a denial of service,
obtain sensitive information, trick a user into accepting unwanted
permissions, conduct header splitting attacks, conduct spoofing attacks,
bypass security restrictions, confuse the user, or execute arbitrary code.
(CVE-2021-4129, CVE-2021-4140, CVE-2021-29981, CVE-2021-29982,
CVE-2021-29987, CVE-2021-29991, CVE-2021-38495, CVE-2021-38496,
CVE-2021-38497, CVE-2021-38498, CVE-2021-38500, CVE-2021-38501,
CVE-2021-38503, CVE-2021-38504, CVE-2021-38506, CVE-2021-38507,
CVE-2021-38508, CVE-2021-38509, CVE-2021-43534, CVE-2021-43535,
CVE-2021-43536, CVE
GHSA
GHSA-xcm8-pjqh-87pg: Mozilla developers and community members reported memory safety bugs present in Firefox 93 and Firefox ESR 91
ghsa_unreviewed·2021-12-09
CVE-2021-43534 [HIGH] CWE-787 GHSA-xcm8-pjqh-87pg: Mozilla developers and community members reported memory safety bugs present in Firefox 93 and Firefox ESR 91
Mozilla developers and community members reported memory safety bugs present in Firefox 93 and Firefox ESR 91.2. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.
OSV
CVE-2021-43534: Mozilla developers and community members reported memory safety bugs present in Firefox 93 and Firefox ESR 91
osv·2021-12-08·CVSS 8.8
CVE-2021-43534 [HIGH] CVE-2021-43534: Mozilla developers and community members reported memory safety bugs present in Firefox 93 and Firefox ESR 91
Mozilla developers and community members reported memory safety bugs present in Firefox 93 and Firefox ESR 91.2. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.
Ubuntu
Thunderbird vulnerabilities
vendor_ubuntu·2022-01-21·CVSS 8.8
CVE-2022-22742 [HIGH] Thunderbird vulnerabilities
Title: Thunderbird vulnerabilities
Summary: Several security issues were fixed in Thunderbird.
Multiple security issues were discovered in Thunderbird. If a user were
tricked into opening a specially crafted website in a browsing context, an
attacker could potentially exploit these to cause a denial of service,
obtain sensitive information, trick a user into accepting unwanted
permissions, conduct header splitting attacks, conduct spoofing attacks,
bypass security restrictions, confuse the user, or execute arbitrary code.
(CVE-2021-4129, CVE-2021-4140, CVE-2021-29981, CVE-2021-29982,
CVE-2021-29987, CVE-2021-29991, CVE-2021-38495, CVE-2021-38496,
CVE-2021-38497, CVE-2021-38498, CVE-2021-38500, CVE-2021-38501,
CVE-2021-38503, CVE-2021-38504, CVE-2021-38506, CVE-2021-38507,
CVE-2021-38508,
Red Hat
Mozilla: Memory safety bugs fixed in Firefox 94 and Firefox ESR 91.3
vendor_redhat·2021-11-02·CVSS 8.8
CVE-2021-43534 [HIGH] CWE-120 Mozilla: Memory safety bugs fixed in Firefox 94 and Firefox ESR 91.3
Mozilla: Memory safety bugs fixed in Firefox 94 and Firefox ESR 91.3
Mozilla developers and community members reported memory safety bugs present in Firefox 93 and Firefox ESR 91.2. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.
The Mozilla Foundation Security Advisory describes this flaw as:
Memory safety bugs present in Firefox 93 and Firefox ESR 91.2. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code
Package: firefox (Red Hat Enterprise Linux 6) - Out of support scope
Package: thunderb
Debian
CVE-2021-43534: firefox - Mozilla developers and community members reported memory safety bugs present in ...
vendor_debian·2021·CVSS 8.8
CVE-2021-43534 [HIGH] CVE-2021-43534: firefox - Mozilla developers and community members reported memory safety bugs present in ...
Mozilla developers and community members reported memory safety bugs present in Firefox 93 and Firefox ESR 91.2. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.
Scope: local
sid: resolved (fixed in 94.0-1)
Mozilla
Mozilla Foundation Security Advisory 2021-48: CVE-2021-43534
vendor_mozilla·CVSS 8.8
CVE-2021-43534 [HIGH] Mozilla Foundation Security Advisory 2021-48: CVE-2021-43534
Mozilla Foundation Security Advisory 2021-48
CVE: CVE-2021-43534
Product: Firefox
Impact: high
Fixed in: Firefox 94
Mozilla
Mozilla Foundation Security Advisory 2021-49: CVE-2021-43534
vendor_mozilla·CVSS 8.8
CVE-2021-43534 [HIGH] Mozilla Foundation Security Advisory 2021-49: CVE-2021-43534
Mozilla Foundation Security Advisory 2021-49
CVE: CVE-2021-43534
Product: Firefox ESR
Impact: high
Fixed in: Firefox ESR 91.3
Mozilla
Mozilla Foundation Security Advisory 2021-50: CVE-2021-43534
vendor_mozilla·CVSS 8.8
CVE-2021-43534 [HIGH] Mozilla Foundation Security Advisory 2021-50: CVE-2021-43534
Mozilla Foundation Security Advisory 2021-50
CVE: CVE-2021-43534
Product: Thunderbird
Impact: high
Fixed in: Thunderbird 91.3
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1606864%2C1712671%2C1730048%2C1735152https://lists.debian.org/debian-lts-announce/2021/12/msg00030.htmlhttps://lists.debian.org/debian-lts-announce/2022/01/msg00001.htmlhttps://www.debian.org/security/2021/dsa-5026https://www.debian.org/security/2022/dsa-5034https://www.mozilla.org/security/advisories/mfsa2021-48/https://www.mozilla.org/security/advisories/mfsa2021-49/https://www.mozilla.org/security/advisories/mfsa2021-50/https://bugzilla.mozilla.org/buglist.cgi?bug_id=1606864%2C1712671%2C1730048%2C1735152https://lists.debian.org/debian-lts-announce/2021/12/msg00030.htmlhttps://lists.debian.org/debian-lts-announce/2022/01/msg00001.htmlhttps://www.debian.org/security/2021/dsa-5026https://www.debian.org/security/2022/dsa-5034https://www.mozilla.org/security/advisories/mfsa2021-48/https://www.mozilla.org/security/advisories/mfsa2021-49/https://www.mozilla.org/security/advisories/mfsa2021-50/
2021-12-08
Published