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    CVE-2006-0645

    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.

    Published:Feb 9, 2006
    Last Modified:Apr 16, 2026
    EPS:Feb 10, 2006
    EPSS Score:0.03721
    CVSS Score:7.5

    Affected Products

    Vendor
    Free Software Foundation Inc.
    Product
    Libtasn1
    Vendor
    Redhat
    Product
    Enterprise Linux

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    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
    http://secunia.com/advisories/18918
    http://secunia.com/advisories/19080
    http://secunia.com/advisories/19092
    http://securityreason.com/securityalert/446
    http://securitytracker.com/id?1015612
    http://www.debian.org/security/2006/dsa-985
    http://www.debian.org/security/2006/dsa-986
    http://www.gentoo.org/security/en/glsa/glsa-200602-08.xml
    http://www.gleg.net/protover_ssl.shtml
    http://www.mandriva.com/security/advisories?name=MDKSA-2006:039
    http://www.osvdb.org/23054
    http://www.redhat.com/archives/fedora-announce-list/2006-February/msg00043.html
    http://www.securityfocus.com/archive/1/424538/100/0/threaded
    http://www.securityfocus.com/bid/16568
    http://www.trustix.org/errata/2006/0008
    http://www.vupen.com/english/advisories/2006/0496
    https://exchange.xforce.ibmcloud.com/vulnerabilities/24606
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10540
    https://usn.ubuntu.com/251-1/
    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
    http://secunia.com/advisories/18918
    http://secunia.com/advisories/19080
    http://secunia.com/advisories/19092
    http://securityreason.com/securityalert/446
    http://securitytracker.com/id?1015612
    http://www.debian.org/security/2006/dsa-985
    http://www.debian.org/security/2006/dsa-986
    http://www.gentoo.org/security/en/glsa/glsa-200602-08.xml
    http://www.gleg.net/protover_ssl.shtml
    http://www.mandriva.com/security/advisories?name=MDKSA-2006:039
    http://www.osvdb.org/23054
    http://www.redhat.com/archives/fedora-announce-list/2006-February/msg00043.html
    http://www.securityfocus.com/archive/1/424538/100/0/threaded
    http://www.securityfocus.com/bid/16568
    http://www.trustix.org/errata/2006/0008
    http://www.vupen.com/english/advisories/2006/0496
    https://exchange.xforce.ibmcloud.com/vulnerabilities/24606
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10540
    https://usn.ubuntu.com/251-1/

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High