Vulnerability Details : 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.
Vulnerability category: Overflow
Exploit prediction scoring system (EPSS) score for CVE-2020-25125
Probability of exploitation activity in the next 30 days: 0.21%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 58 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2020-25125
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|
|
6.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:P |
8.6
|
6.4
|
[email protected] |
|
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
[email protected] |
CWE ids for CVE-2020-25125
-
The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.Assigned by: [email protected] (Primary)
References for CVE-2020-25125
-
https://lists.gnupg.org/pipermail/gnupg-announce/2020q3/000448.html
Vendor Advisory
-
https://bugzilla.opensuse.org/show_bug.cgi?id=1176034
Exploit;Issue Tracking;Third Party Advisory
-
http://www.openwall.com/lists/oss-security/2020/09/03/4
Mailing List;Third Party Advisory
-
https://dev.gnupg.org/T5050
Mailing List
-
https://dev.gnupg.org/rG8ec9573e57866dda5efb4677d4454161517484bc
Patch;Vendor Advisory
-
http://www.openwall.com/lists/oss-security/2020/09/03/5
Mailing List;Third Party Advisory
Products affected by CVE-2020-25125
- cpe:2.3:a:gnupg:gnupg:2.2.21:*:*:*:*:*:*:*
- cpe:2.3:a:gnupg:gnupg:2.2.22:*:*:*:*:*:*:*
- cpe:2.3:a:gpg4win:gpg4win:3.1.12:*:*:*:*:*:*:*