CVE-2010-2547

Publication date 5 August 2010

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

Use-after-free vulnerability in kbx/keybox-blob.c in GPGSM in GnuPG 2.x through 2.0.16 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a certificate with a large number of Subject Alternate Names, which is not properly handled in a realloc operation when importing the certificate or verifying its signature.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
gnupg2	10.04 LTS lucid	Fixed 2.0.14-1ubuntu1.2
	9.10 karmic	Fixed 2.0.12-0ubuntu2.1
	9.04 jaunty	Fixed 2.0.9-3.1ubuntu0.1
	8.04 LTS hardy	Fixed 2.0.7-1ubuntu0.1
	6.06 LTS dapper	Ignored

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
gnupg2	Upstream: http://cvs.gnupg.org/cgi-bin/viewcvs.cgi?view=rev&revision=5370 Upstream: http://cvs.gnupg.org/cgi-bin/viewcvs.cgi?view=rev&revision=5371

Severity score breakdown

Parameter	Value
Base score	8.1 · High
Attack vector	Network
Attack complexity	High
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

USN-970-1
GnuPG2 vulnerability
11 August 2010