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›vulnerability›CVE-2025-68973
Name
CVE-2025-68973
Source
NVD ( link)Debian ( link)
Description
In GnuPG before 2.4.9, armor_filter in g10/armor.c has two increments of an index variable where one is intended, leading to an out-of-bounds write for crafted input. (For ExtendedLTS, 2.2.51 and later are fixed versions.)
CWEs
CWE-675 CWE-787
Published Date
Updated Date
Workaround
-
Advisories
https://github.com/gpg/gnupg/blob/ff30683418695f5d2cc9e6cf8c9418e09378ebe4/g10/armor.c#L1305-L1306Product
https://github.com/gpg/gnupg/commit/115d138ba599328005c5321c0ef9f00355838ca9Patch
https://github.com/gpg/gnupg/compare/gnupg-2.2.50...gnupg-2.2.51Patch
https://gpg.fail/memcpyBroken Link
https://media.ccc.de/v/39c3-to-sign-or-not-to-sign-practical-vulnerabilities-iIssue Tracking
https://news.ycombinator.com/item?id=46403200Issue Tracking
https://www.openwall.com/lists/oss-security/2025/12/28/5Mailing List
http://www.openwall.com/lists/oss-security/2025/12/29/11Mailing List
https://gpg.fail/memcpyBroken Link

Analysis#

Affected Component
Analysis
gnupg
Exploitable

Vulnerability Ratings#

7.8
CVSSv31
7
CVSSv31
NaN
other

Others affected components#

Name
Project
Project Version
Version
Status
gnupg
buildroot
2025.02.x
1.4.23
Exploitable
gnupg2
buildroot
2025.02.x
2.4.9
Not Affected
gnupg
openwrt
master
1.4.23-r5
Exploitable
gnupg2
openwrt
master
2.5.20-r1
Not Affected
gnupg
openwrt
openwrt-25.12
1.4.23-r5
Exploitable
gnupg2
openwrt
openwrt-25.12
2.4.8-r1
Exploitable
gnupg
yocto
kirkstone
2.3.7
Patched
gnupg
yocto
master
2.5.17
Not Affected
gnupg
yocto
scarthgap
2.4.9
Not Affected

Resolved with patches#

gnupg (yocto:kirkstone)

#
Title
Author
Resolve
1
gpg: Fix possible memory corruption in the armor parser.
Werner Koch <wk@gnupg.org>
CVE-2025-68973