Vulnerability Details : CVE-2020-25125
Potential exploit
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
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:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-25125
0.22%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 59 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-25125
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
6.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:P |
8.6
|
6.4
|
NIST | |
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
|
NIST |
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: nvd@nist.gov (Primary)
References for CVE-2020-25125
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https://lists.gnupg.org/pipermail/gnupg-announce/2020q3/000448.html
[Announce] [security fix] GnuPG 2.2.23 releasedVendor Advisory
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https://bugzilla.opensuse.org/show_bug.cgi?id=1176034
Bug 1176034 – VUL-0: CVE-2020-25125: gpg2: AEAD preference list overflowExploit;Issue Tracking;Third Party Advisory
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http://www.openwall.com/lists/oss-security/2020/09/03/4
oss-security - GNUPG released with AEAD sec fix CVE-2020-25125Mailing List;Third Party Advisory
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https://dev.gnupg.org/T5050
⚓ T5050 AEAD preference list overflow in 2.2Mailing List
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https://dev.gnupg.org/rG8ec9573e57866dda5efb4677d4454161517484bc
rG8ec9573e5786Patch;Vendor Advisory
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http://www.openwall.com/lists/oss-security/2020/09/03/5
oss-security - CVE-2020-25125: gnupg2: buffer overflow when importing a key with AEAD preferencesMailing List;Third Party Advisory
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