Vulnerability Monitor

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CVE-2020-25125

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.

Published

2020-09-03T18:15:15.160

Last Modified

2024-11-21T05:17:24.637

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.8 (HIGH)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:P/I:P/A:P

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: PARTIAL
Availability Impact: PARTIAL

Exploitability Score

8.6

Impact Score

6.4

Weaknesses

Type: Primary
CWE-120

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	gnupg	gnupg	2.2.21	Yes
Application	gnupg	gnupg	2.2.22	Yes
Application	gpg4win	gpg4win	3.1.12	Yes

References

http://www.openwall.com/lists/oss-security/2020/09/03/4 Mailing List, Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2020/09/03/5 Mailing List, Third Party Advisory ([email protected])
https://bugzilla.opensuse.org/show_bug.cgi?id=1176034 Exploit, Issue Tracking, Third Party Advisory ([email protected])
https://dev.gnupg.org/T5050 Mailing List ([email protected])
https://dev.gnupg.org/rG8ec9573e57866dda5efb4677d4454161517484bc Patch, Vendor Advisory ([email protected])
https://lists.gnupg.org/pipermail/gnupg-announce/2020q3/000448.html Vendor Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2020/09/03/4 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2020/09/03/5 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.opensuse.org/show_bug.cgi?id=1176034 Exploit, Issue Tracking, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://dev.gnupg.org/T5050 Mailing List (af854a3a-2127-422b-91ae-364da2661108)
https://dev.gnupg.org/rG8ec9573e57866dda5efb4677d4454161517484bc Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.gnupg.org/pipermail/gnupg-announce/2020q3/000448.html Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)