CVE-2009-1415

Severity: medium (CVSS 4.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 7.9% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2009-04-30 · updated 2026-06-16
Weakness: CWE-824

Description

lib/pk-libgcrypt.c in libgnutls in GnuTLS before 2.6.6 does not properly handle invalid DSA signatures, which allows remote attackers to cause a denial of service (application crash) and possibly have unspecified other impact via a malformed DSA key that triggers a (1) free of an uninitialized pointer or (2) double free.

Affected products

[UNKNOWN] gnutls: before 2.6.6 — fixed in 2.6.6

How to fix

Upgrade to a fixed version: [UNKNOWN] gnutls 2.6.6. Check the vendor advisory for mitigations.

References

http://article.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/3515
http://permalink.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/3502
http://secunia.com/advisories/34842
http://secunia.com/advisories/35211
http://security.gentoo.org/glsa/glsa-200905-04.xml
http://thread.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/3488
http://www.mandriva.com/security/advisories?name=MDVSA-2009:116
http://www.securityfocus.com/bid/34783
http://www.securitytracker.com/id?1022157
http://www.vupen.com/english/advisories/2009/1218
https://exchange.xforce.ibmcloud.com/vulnerabilities/50257
https://exchange.xforce.ibmcloud.com/vulnerabilities/50260

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