CVE-2021-43543
published 2021-12-08CVE-2021-43543: Documents loaded with the CSP sandbox directive could have escaped the sandbox's script restriction by embedding additional content. This vulnerability affects…
PriorityP424medium6.1CVSS 3.1
AVNACLPRNUIRSCCLILAN
EPSS
1.35%
68.2th percentile
Documents loaded with the CSP sandbox directive could have escaped the sandbox's script restriction by embedding additional content. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.
Affected
23 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | debian_linux | — | — |
| debian | debian_linux | — | — |
| debian | firefox | < firefox 95.0-1 (sid) | firefox 95.0-1 (sid) |
| debian | firefox-esr | < firefox 95.0-1 (sid) | firefox 95.0-1 (sid) |
| debian | thunderbird | < firefox 95.0-1 (sid) | firefox 95.0-1 (sid) |
| mozilla | firefox | < 95.0 | 95.0 |
| mozilla | firefox | — | — |
| mozilla | firefox | >= 0 < 95.0.1+build2-0ubuntu0.18.04.1 | 95.0.1+build2-0ubuntu0.18.04.1 |
| mozilla | firefox | >= 0 < 95.0+build1-0ubuntu0.18.04.1 | 95.0+build1-0ubuntu0.18.04.1 |
| mozilla | firefox | >= 0 < 95.0.1+build2-0ubuntu0.20.04.1 | 95.0.1+build2-0ubuntu0.20.04.1 |
| mozilla | firefox | >= 0 < 95.0+build1-0ubuntu0.20.04.1 | 95.0+build1-0ubuntu0.20.04.1 |
| mozilla | firefox | >= unspecified < 95 | 95 |
| mozilla | firefox_esr | < 91.4.0 | 91.4.0 |
| mozilla | firefox_esr | >= unspecified < 91.4.0 | 91.4.0 |
| mozilla | thunderbird | < 91.4.0 | 91.4.0 |
| mozilla | thunderbird | >= 0 < 1:91.4.1-1~deb11u1 | 1:91.4.1-1~deb11u1 |
| mozilla | thunderbird | >= 0 < 1:91.4.0-1 | 1:91.4.0-1 |
| mozilla | thunderbird | >= 0 < 1:91.4.0-1 | 1:91.4.0-1 |
| mozilla | thunderbird | >= 0 < 1:91.4.0-1 | 1:91.4.0-1 |
| 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 < 91.4.0 | 91.4.0 |
CVSS provenance
nvdv3.16.1MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
nvdv2.04.3MEDIUMAV:N/AC:M/Au:N/C:N/I:P/A:N
osv8.8HIGH
vendor_ubuntu8.8HIGH
vendor_debian6.1MEDIUM
vendor_redhat6.1MEDIUM
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Ubuntu
Thunderbird vulnerabilities
vendor_ubuntu·2022-01-21·CVSS 6.5
CVE-2021-4140 [MEDIUM] 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, conduct spoofing attacks, bypass security
restrictions, or execute arbitrary code. (CVE-2021-4129, CVE-2021-4140,
CVE-2021-43536, CVE-2021-43537, CVE-2021-43538, CVE-2021-43539,
CVE-2021-43541, CVE-2021-43542, CVE-2021-43543, CVE-2021-43545,
CVE-2021-43656, CVE-2022-22737, CVE-2022-22738, CVE-2022-22739,
CVE-2022-22740, CVE-2022-22741, CVE-2022-22742, CVE-2022-22743,
CVE-2022-22745, CVE-2022-22747, CVE-2022-22748, CVE-2022-22751)
It was discovered th
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,
Ubuntu
Firefox regressions
vendor_ubuntu·2021-12-20·CVSS 6.5
[MEDIUM] Firefox regressions
Title: Firefox regressions
Summary: USN-5186-1 caused some minor regressions in Firefox.
USN-5186-1 fixed vulnerabilities in Firefox. The update introduced several
minor regressions. This update fixes the problem.
We apologize for the inconvenience.
Original advisory 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, obtain sensitive
information, conduct spoofing attacks, bypass CSP restrictions, or
execute arbitrary code. (CVE-2021-43536, CVE-2021-43537, CVE-2021-43538,
CVE-2021-43539, CVE-2021-43541, CVE-2021-43542, CVE-2021-43543,
CVE-2021-43545, CVE-2021-43546)
A security issue was discovered with the handling of WebExtension
permis
Ubuntu
Firefox vulnerabilities
vendor_ubuntu·2021-12-09·CVSS 6.5
CVE-2021-43538 [MEDIUM] Firefox vulnerabilities
Title: Firefox vulnerabilities
Summary: Firefox could be made to crash or run programs as your login if it
opened a malicious website.
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, obtain sensitive
information, conduct spoofing attacks, bypass CSP restrictions, or
execute arbitrary code. (CVE-2021-43536, CVE-2021-43537, CVE-2021-43538,
CVE-2021-43539, CVE-2021-43541, CVE-2021-43542, CVE-2021-43543,
CVE-2021-43545, CVE-2021-43546)
A security issue was discovered with the handling of WebExtension
permissions. If a user were tricked into installing a specially crafted
extension, an attacker could potentially exploit this to create and
install a s
Red Hat
Mozilla: Bypass of CSP sandbox directive when embedding
vendor_redhat·2021-12-07·CVSS 6.1
CVE-2021-43543 [MEDIUM] CWE-79 Mozilla: Bypass of CSP sandbox directive when embedding
Mozilla: Bypass of CSP sandbox directive when embedding
Documents loaded with the CSP sandbox directive could have escaped the sandbox's script restriction by embedding additional content. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.
Package: firefox (Red Hat Enterprise Linux 6) - Out of support scope
Package: thunderbird (Red Hat Enterprise Linux 6) - Out of support scope
Debian
CVE-2021-43543: firefox - Documents loaded with the CSP sandbox directive could have escaped the sandbox's...
vendor_debian·2021·CVSS 6.1
CVE-2021-43543 [MEDIUM] CVE-2021-43543: firefox - Documents loaded with the CSP sandbox directive could have escaped the sandbox's...
Documents loaded with the CSP sandbox directive could have escaped the sandbox's script restriction by embedding additional content. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.
Scope: local
sid: resolved (fixed in 95.0-1)
Mozilla
Mozilla Foundation Security Advisory 2021-52: CVE-2021-43543
vendor_mozilla·CVSS 6.1
CVE-2021-43543 [MEDIUM] Mozilla Foundation Security Advisory 2021-52: CVE-2021-43543
Mozilla Foundation Security Advisory 2021-52
CVE: CVE-2021-43543
Product: Firefox
Impact: high
Fixed in: Firefox 95
Mozilla
Mozilla Foundation Security Advisory 2021-54: CVE-2021-43543
vendor_mozilla·CVSS 6.1
CVE-2021-43543 [MEDIUM] Mozilla Foundation Security Advisory 2021-54: CVE-2021-43543
Mozilla Foundation Security Advisory 2021-54
CVE: CVE-2021-43543
Product: Thunderbird
Impact: high
Fixed in: Thunderbird 91.4
Mozilla
Mozilla Foundation Security Advisory 2021-53: CVE-2021-43543
vendor_mozilla·CVSS 6.1
CVE-2021-43543 [MEDIUM] Mozilla Foundation Security Advisory 2021-53: CVE-2021-43543
Mozilla Foundation Security Advisory 2021-53
CVE: CVE-2021-43543
Product: Firefox ESR
Impact: high
Fixed in: Firefox ESR 91.4
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
OSV
firefox regressions
osv·2021-12-20·CVSS 6.5
[MEDIUM] firefox regressions
firefox regressions
USN-5186-1 fixed vulnerabilities in Firefox. The update introduced several
minor regressions. This update fixes the problem.
We apologize for the inconvenience.
Original advisory 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, obtain sensitive
information, conduct spoofing attacks, bypass CSP restrictions, or
execute arbitrary code. (CVE-2021-43536, CVE-2021-43537, CVE-2021-43538,
CVE-2021-43539, CVE-2021-43541, CVE-2021-43542, CVE-2021-43543,
CVE-2021-43545, CVE-2021-43546)
A security issue was discovered with the handling of WebExtension
permissions. If a user were tricked into installing a specially crafted
exte
GHSA
GHSA-6257-2grx-5hjf: Documents loaded with the CSP sandbox directive could have escaped the sandbox's script restriction by embedding additional content
ghsa_unreviewed·2021-12-09
CVE-2021-43543 [MEDIUM] CWE-79 GHSA-6257-2grx-5hjf: Documents loaded with the CSP sandbox directive could have escaped the sandbox's script restriction by embedding additional content
Documents loaded with the CSP sandbox directive could have escaped the sandbox's script restriction by embedding additional content. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.
OSV
firefox vulnerabilities
osv·2021-12-09·CVSS 6.5
CVE-2021-43536 [MEDIUM] firefox vulnerabilities
firefox vulnerabilities
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, obtain sensitive
information, conduct spoofing attacks, bypass CSP restrictions, or
execute arbitrary code. (CVE-2021-43536, CVE-2021-43537, CVE-2021-43538,
CVE-2021-43539, CVE-2021-43541, CVE-2021-43542, CVE-2021-43543,
CVE-2021-43545, CVE-2021-43546)
A security issue was discovered with the handling of WebExtension
permissions. If a user were tricked into installing a specially crafted
extension, an attacker could potentially exploit this to create and
install a service worker that wouldn't be uninstalled with the extension.
(CVE-2021-43540)
OSV
CVE-2021-43543: Documents loaded with the CSP sandbox directive could have escaped the sandbox's script restriction by embedding additional content
osv·2021-12-08·CVSS 6.1
CVE-2021-43543 [MEDIUM] CVE-2021-43543: Documents loaded with the CSP sandbox directive could have escaped the sandbox's script restriction by embedding additional content
Documents loaded with the CSP sandbox directive could have escaped the sandbox's script restriction by embedding additional content. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://bugzilla.mozilla.org/show_bug.cgi?id=1738418https://lists.debian.org/debian-lts-announce/2021/12/msg00030.htmlhttps://lists.debian.org/debian-lts-announce/2022/01/msg00001.htmlhttps://security.gentoo.org/glsa/202202-03https://security.gentoo.org/glsa/202208-14https://www.debian.org/security/2021/dsa-5026https://www.debian.org/security/2022/dsa-5034https://www.mozilla.org/security/advisories/mfsa2021-52/https://www.mozilla.org/security/advisories/mfsa2021-53/https://www.mozilla.org/security/advisories/mfsa2021-54/https://bugzilla.mozilla.org/show_bug.cgi?id=1738418https://lists.debian.org/debian-lts-announce/2021/12/msg00030.htmlhttps://lists.debian.org/debian-lts-announce/2022/01/msg00001.htmlhttps://security.gentoo.org/glsa/202202-03https://security.gentoo.org/glsa/202208-14https://www.debian.org/security/2021/dsa-5026https://www.debian.org/security/2022/dsa-5034https://www.mozilla.org/security/advisories/mfsa2021-52/https://www.mozilla.org/security/advisories/mfsa2021-53/https://www.mozilla.org/security/advisories/mfsa2021-54/
2021-12-08
Published