What’s Vulnerable › Vulnerabilities

CVE-2006-0645

• Severity: high (CVSS 7.5 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2006-02-10 · updated 2026-06-16

Description

Tiny ASN.1 Library (libtasn1) before 0.2.18, as used by (1) GnuTLS 1.2.x before 1.2.10 and 1.3.x before 1.3.4, and (2) GNU Shishi, allows attackers to crash the DER decoder and possibly execute arbitrary code via "out-of-bounds access" caused by invalid input, as demonstrated by the ProtoVer SSL test suite.

Affected products

• Free Software Foundation Inc. Libtasn1: 0.1.0, 0.1.1, 0.1.2, 0.2.0, 0.2.1, 0.2.2 (+15)

References

• http://josefsson.org/cgi-bin/viewcvs.cgi/gnutls/tests/certder.c?view=markup
• http://josefsson.org/cgi-bin/viewcvs.cgi/libtasn1/NEWS?root=gnupg-mirror&view=markup
• http://josefsson.org/gnutls/releases/libtasn1/libtasn1-0.2.18-from-0.2.17.patch
• http://lists.gnupg.org/pipermail/gnutls-dev/2006-February/001058.html
• http://lists.gnupg.org/pipermail/gnutls-dev/2006-February/001059.html
• http://lists.gnupg.org/pipermail/gnutls-dev/2006-February/001060.html
• http://rhn.redhat.com/errata/RHSA-2006-0207.html
• http://secunia.com/advisories/18794
• http://secunia.com/advisories/18815
• http://secunia.com/advisories/18830
• http://secunia.com/advisories/18832
• http://secunia.com/advisories/18898

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