CVE-2021-43528

Thunderbird unexpectedly enabled JavaScript in the composition area. The JavaScript execution context was limited to this area and did not receive chrome-level privileges, but could be used as a stepping stone to further an attack with other vulnerabilities. This vulnerability affects Thunderbird < 91.4.0.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
6.5 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
mozillaCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 52%
VendorProductVersion
mozillathunderbird
𝑥
< 91.4.0
debiandebian_linux
9.0
debiandebian_linux
10.0
debiandebian_linux
11.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
thunderbird
bullseye
1:115.12.0-1~deb11u1
fixed
bullseye (security)
1:128.4.0esr-1~deb11u1
fixed
bookworm
1:115.12.0-1~deb12u1
fixed
bookworm (security)
1:115.16.0esr-1~deb12u1
fixed
sid
1:128.4.0esr-1
fixed
trixie
1:128.4.0esr-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
thunderbird
lunar
Fixed 1:91.4.0+build1-0ubuntu1
released
kinetic
Fixed 1:91.4.0+build1-0ubuntu1
released
jammy
Fixed 1:91.4.0+build1-0ubuntu1
released
impish
Fixed 1:91.5.0+build1-0ubuntu0.21.10.1
released
hirsute
ignored
focal
Fixed 1:91.5.0+build1-0ubuntu0.20.04.1
released
bionic
Fixed 1:91.5.0+build1-0ubuntu0.18.04.1
released
xenial
ignored
trusty
ignored
Common Weakness Enumeration
References
https://bugzilla.mozilla.org/show_bug.cgi?id=1742579
https://lists.debian.org/debian-lts-announce/2022/01/msg00001.html
https://security.gentoo.org/glsa/202208-14
https://www.debian.org/security/2022/dsa-5034
https://www.mozilla.org/security/advisories/mfsa2021-54/
https://bugzilla.mozilla.org/show_bug.cgi?id=1742579
https://lists.debian.org/debian-lts-announce/2022/01/msg00001.html
https://security.gentoo.org/glsa/202208-14
https://www.debian.org/security/2022/dsa-5034
https://www.mozilla.org/security/advisories/mfsa2021-54/