CVE-2021-29955

EUVD-2021-16414
A transient execution vulnerability, named Floating Point Value Injection (FPVI) allowed an attacker to leak arbitrary memory addresses and may have also enabled JIT type confusion attacks. (A related vulnerability, Speculative Code Store Bypass (SCSB), did not affect Firefox.). This vulnerability affects Firefox ESR < 78.9 and Firefox < 87.
Injection
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.3 MEDIUM
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 75%
Affected Products (NVD)
VendorProductVersion
mozillafirefox
𝑥
< 87.0
mozillafirefox_esr
𝑥
< 78.9
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
firefox
sid
132.0.1-1
fixed
firefox-esr
bookworm
115.14.0esr-1~deb12u1
fixed
bookworm (security)
128.4.0esr-1~deb12u1
fixed
bullseye
115.14.0esr-1~deb11u1
fixed
bullseye (security)
128.4.0esr-1~deb11u1
fixed
sid
128.4.0esr-1
fixed
trixie
128.3.1esr-2
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
firefox
bionic
Fixed 87.0+build3-0ubuntu0.18.04.1
released
focal
Fixed 87.0+build3-0ubuntu0.20.04.1
released
groovy
Fixed
released
hirsute
Fixed
released
impish
Fixed
released
jammy
Fixed 87.0+build1-0ubuntu1
released
kinetic
Fixed 87.0+build1-0ubuntu1
released
lunar
Fixed 87.0+build1-0ubuntu1
released
mantic
Fixed 87.0+build1-0ubuntu1
released
noble
Fixed 87.0+build1-0ubuntu1
released
trusty
dne
xenial
ignored
firefox-esr
bionic
dne
focal
dne
groovy
dne
hirsute
dne
impish
dne
jammy
dne
kinetic
dne
lunar
dne
mantic
dne
noble
dne
trusty
dne
xenial
ignored
mozjs38
bionic
ignored
focal
dne
groovy
dne
hirsute
dne
impish
dne
jammy
dne
kinetic
dne
lunar
dne
mantic
dne
noble
dne
trusty
dne
xenial
dne
mozjs52
bionic
ignored
focal
ignored
groovy
ignored
hirsute
dne
impish
dne
jammy
dne
kinetic
dne
lunar
dne
mantic
dne
noble
dne
trusty
dne
xenial
dne
mozjs68
bionic
dne
focal
ignored
groovy
ignored
hirsute
dne
impish
dne
jammy
dne
kinetic
dne
lunar
dne
mantic
dne
noble
dne
trusty
dne
xenial
dne
mozjs78
bionic
dne
focal
dne
groovy
ignored
hirsute
ignored
impish
ignored
jammy
ignored
kinetic
ignored
lunar
ignored
mantic
dne
noble
dne
trusty
dne
xenial
dne
thunderbird
bionic
not-affected
focal
not-affected
groovy
ignored
hirsute
not-affected
impish
not-affected
jammy
not-affected
kinetic
not-affected
lunar
not-affected
mantic
not-affected
noble
not-affected
trusty
dne
xenial
not-affected