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.

CVSS v3.0 7.8 HIGH
CVSS v2.0 6.8 MEDIUM

7.8^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.8^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 8.6 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://bugzilla.opensuse.org/show_bug.cgi?id=1176034	Exploit Issue Tracking Third Party Advisory
https://lists.gnupg.org/pipermail/gnupg-announce/2020q3/000448.html	Vendor 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
http://www.openwall.com/lists/oss-security/2020/09/03/4	Mailing List Third Party Advisory

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Configurations

Configuration 1 (hide)

OR	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:::::::*

Information

Published : 2020-09-03 11:15

Updated : 2020-09-11 06:49

NVD link : CVE-2020-25125

Mitre link : CVE-2020-25125

JSON object : View

CWE

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

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Products Affected

gnupg

gnupg

gpg4win

gpg4win

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