CVE-2020-25125

EUVD-2020-17816
GnuPG 2.2.21 and 2.2.22 (and Gpg4win 3.1.12) has an array overflow, leading to a crash or possibly unspecified other impact, when a victim imports an attacker's OpenPGP key, and this key has AEAD preferences. The overflow is caused by a g10/key-check.c error. NOTE: GnuPG 2.3.x is unaffected. GnuPG 2.2.23 is a fixed version.
Classic Buffer Overflow
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.8 HIGH
LOCAL
LOW
NONE
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 61%
Affected Products (NVD)
VendorProductVersion
gnupggnupg
2.2.21
gnupggnupg
2.2.22
gpg4wingpg4win
3.1.12
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
gnupg2
bookworm
2.2.40-1.1
fixed
bullseye
2.2.27-2+deb11u2
fixed
bullseye (security)
2.2.27-2+deb11u2
fixed
sid
2.2.45-2
fixed
trixie
2.2.44-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
gnupg2
bionic
not-affected
focal
not-affected
trusty
dne
xenial
not-affected
Common Weakness Enumeration
References
http://www.openwall.com/lists/oss-security/2020/09/03/4
http://www.openwall.com/lists/oss-security/2020/09/03/5
https://bugzilla.opensuse.org/show_bug.cgi?id=1176034
https://dev.gnupg.org/T5050
https://dev.gnupg.org/rG8ec9573e57866dda5efb4677d4454161517484bc
https://lists.gnupg.org/pipermail/gnupg-announce/2020q3/000448.html
http://www.openwall.com/lists/oss-security/2020/09/03/4
http://www.openwall.com/lists/oss-security/2020/09/03/5
https://bugzilla.opensuse.org/show_bug.cgi?id=1176034
https://dev.gnupg.org/T5050
https://dev.gnupg.org/rG8ec9573e57866dda5efb4677d4454161517484bc
https://lists.gnupg.org/pipermail/gnupg-announce/2020q3/000448.html