Input validation error in GnuPG - CVE-2010-2547

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Main Vulnerability Database Vulnerabilities #VU32850

Input validation error in GnuPG - CVE-2010-2547

Published: August 5, 2010 / Updated: July 28, 2020


Vulnerability identifier: #VU32850
CSH Severity: Medium
CVSS v4: 6.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2010-2547
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows remote attackers to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can 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.


Affected software

GnuPG
Gentoo Linux
Slackware Linux
Magento Open Source
gnupg (Alpine package)

How to mitigate CVE-2010-2547

Update to version 2.0.17.

GnuPG - update to 2.0.17
gnupg (Alpine package) - update to 2.0.18-r0

External References

Related Security Bulletins