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…

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.

Scores

EPSS (exploitation in 30 days)

3.9% · top 9.7% of all CVEs (4 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.

Weakness

• n/a

Affected products

• n/a

  • affected n/a

References (31)

• 2006-0008 (opens in a new tab)vendor-advisoryx_refsource_TRUSTIXx_transferred
• 18815 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 446 (opens in a new tab)third-party-advisoryx_refsource_SREASONx_transferred
• FEDORA-2006-107 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
• 19092 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 1015612 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
• 23054 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
• 18794 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 18918 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• MDKSA-2006:039 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
• 18830 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• oval:org.mitre.oval:def:10540 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
• [gnutls-dev] 20060209 GnuTLS 1.2.10 - Security release (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• RHSA-2006:0207 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• [gnutls-dev] 20060209 Libtasn1 0.2.18 - Tiny ASN.1 Library - Security release (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• DSA-986 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
• DSA-985 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
• ADV-2006-0496 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
• http://josefsson.org/cgi-bin/viewcvs.cgi/libtasn1/NEWS?root=gnupg-mirror&view=markup (opens in a new tab)x_refsource_CONFIRMx_transferred
• GLSA-200602-08 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
• http://www.gleg.net/protover_ssl.shtml (opens in a new tab)x_refsource_MISCx_transferred
• gnutls-libtasn1-der-dos(24606) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
• [gnutls-dev] 20060209 GnuTLS 1.3.4 - Experimental - Security release (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• 16568 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
• 18832 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• http://josefsson.org/cgi-bin/viewcvs.cgi/gnutls/tests/certder.c?view=markup (opens in a new tab)x_refsource_MISCx_transferred
• USN-251-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
• 19080 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• http://josefsson.org/gnutls/releases/libtasn1/libtasn1-0.2.18-from-0.2.17.patch (opens in a new tab)x_refsource_MISCx_transferred
• 20060209 ProtoVer SSL: GnuTLS (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
• 18898 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2006-0645](https://trackcve.app/badge/CVE-2006-0645.svg)](https://trackcve.app/cve/CVE-2006-0645)

Record last updated 7 Aug 2024, 16:41 UTC.