CVE-2020-25125

Published: 3 September 2020

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.

Notes

Author	Note
mdeslaur	only 2.2.21 and 2.2.22 are affected

Priority

Cvss 3 Severity Score

7.8

Score breakdown

Status

Package	Release	Status
gnupg2 Launchpad, Ubuntu, Debian	bionic	Not vulnerable
	focal	Not vulnerable
	trusty	Does not exist
	upstream	Released (2.2.23)
	xenial	Not vulnerable

Severity score breakdown

Parameter	Value
Base score	7.8
Attack vector	Local
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

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