CVE-2023-29542

A newline in a filename could have been used to bypass the file extension security mechanisms that replace malicious file extensions such as .lnk  with .download. This could have led to accidental execution of malicious code.

*This bug only affects Firefox and Thunderbird on Windows. Other versions of Firefoxand Thunderbird are unaffected.* This vulnerability affects Firefox < 112, Firefox ESR < 102.10, and Thunderbird < 102.10.

ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
mozillaCNA
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CVEADP
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CISA-ADPADP
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 32%
VendorProductVersion
mozillafirefox
𝑥
< 112.0
mozillafirefox_esr
𝑥
< 102.10
mozillathunderbird
𝑥
< 102.10
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
firefox
sid
133.0.3-1
fixed
firefox-esr
bullseye
115.14.0esr-1~deb11u1
fixed
bullseye (security)
128.5.0esr-1~deb11u1
fixed
bookworm
128.3.1esr-1~deb12u1
fixed
bookworm (security)
128.5.0esr-1~deb12u1
fixed
trixie
128.5.0esr-1
fixed
sid
128.5.1esr-1
fixed
thunderbird
bullseye
1:115.12.0-1~deb11u1
fixed
bullseye (security)
1:128.5.0esr-1~deb11u1
fixed
bookworm
1:115.16.0esr-1~deb12u1
fixed
bookworm (security)
1:128.5.0esr-1~deb12u1
fixed
sid
1:128.5.2esr-1
fixed
trixie
1:128.5.2esr-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
firefox
noble
not-affected
mantic
not-affected
lunar
not-affected
kinetic
not-affected
jammy
not-affected
focal
not-affected
bionic
not-affected
xenial
ignored
trusty
ignored
mozjs38
noble
dne
mantic
dne
lunar
dne
kinetic
dne
jammy
dne
focal
dne
bionic
ignored
xenial
dne
trusty
dne
mozjs52
noble
dne
mantic
dne
lunar
dne
kinetic
dne
jammy
dne
focal
ignored
bionic
ignored
xenial
dne
trusty
dne
mozjs68
noble
dne
mantic
dne
lunar
dne
kinetic
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
mozjs78
noble
dne
mantic
dne
lunar
ignored
kinetic
ignored
jammy
ignored
focal
dne
bionic
dne
xenial
dne
trusty
dne
mozjs91
noble
dne
mantic
dne
lunar
dne
kinetic
dne
jammy
ignored
focal
dne
bionic
dne
xenial
dne
trusty
dne
thunderbird
noble
not-affected
mantic
not-affected
lunar
not-affected
kinetic
not-affected
jammy
not-affected
focal
not-affected
bionic
not-affected
xenial
ignored
trusty
ignored