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    CVE-2012-1573

    gnutls_cipher.c in libgnutls in GnuTLS before 2.12.17 and 3.x before 3.0.15 does not properly handle data encrypted with a block cipher, which allows remote attackers to cause a denial of service (heap memory corruption and application crash) via a crafted record, as demonstrated by a crafted GenericBlockCipher structure.

    Published:Mar 21, 2012
    Last Modified:Apr 11, 2025
    EPS:Mar 26, 2012
    EPSS Score:0.10166
    CVSS Score:5

    Affected Products

    Vendor
    Gnu
    Product
    Gnutls
    Vendor
    Redhat
    Product
    Enterprise Linux

    Exploits

    http://blog.mudynamics.com/2012/03/20/gnutls-and-libtasn1-vulns/http://blog.mudynamics.com/2012/03/20/gnutls-and-libtasn1-vulns/

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-42014 (CVSS 6.6) — A flaw was found in GnuTLS. The `gnutls_pkcs11_token_set_pin` function, used for changing the Security Officer…
    CVE-2026-5419 (CVSS 3.7) — A flaw was found in gnutls. The PKCS#7 padding check, performed during decryption, was not constant-time. This…
    CVE-2026-42013 (CVSS 8.2) — A flaw was found in gnutls. When validating certificates, an oversized Subject Alternative Name (SAN) could ca…
    CVE-2026-42012 (CVSS 7.1) — A flaw was found in gnutls. A remote attacker could exploit this vulnerability by presenting a specially craft…
    CVE-2026-5260 (CVSS 8.2) — A flaw was found in libgnutls. A remote attacker, by sending an extremely short premaster secret during an RSA…
    CVE-2026-33846 (CVSS 7.5) — A heap buffer overflow vulnerability exists in the DTLS handshake fragment reassembly logic of GnuTLS. The iss…
    CVE-2026-3832 (CVSS 3.7) — A flaw was found in gnutls. A remote attacker could exploit this vulnerability by presenting a specially craft…
    CVE-2026-33845 (CVSS 7.5) — A flaw in GnuTLS DTLS handshake parsing allows malformed fragments with zero length and non-zero offset, leadi…
    CVE-2026-3833 (CVSS 6.5) — A flaw was found in gnutls. This vulnerability occurs because gnutls performs case-sensitive comparisons of `n…
    CVE-2026-42009 (CVSS 7.5) — A flaw was found in gnutls. A remote attacker could exploit an issue in the Datagram Transport Layer Security …

    References

    http://archives.neohapsis.com/archives/bugtraq/2012-03/0099.html
    http://article.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/5910
    http://article.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/5912
    http://blog.mudynamics.com/2012/03/20/gnutls-and-libtasn1-vulns/
    http://git.savannah.gnu.org/gitweb/?p=gnutls.git%3Ba=commit%3Bh=422214868061370aeeb0ac9cd0f021a5c350a57d
    http://git.savannah.gnu.org/gitweb/?p=gnutls.git%3Ba=commit%3Bh=b495740f2ff66550ca9395b3fda3ea32c3acb185
    http://lists.fedoraproject.org/pipermail/package-announce/2012-April/077071.html
    http://lists.fedoraproject.org/pipermail/package-announce/2012-March/076496.html
    http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00001.html
    http://osvdb.org/80259
    http://rhn.redhat.com/errata/RHSA-2012-0429.html
    http://rhn.redhat.com/errata/RHSA-2012-0488.html
    http://rhn.redhat.com/errata/RHSA-2012-0531.html
    http://secunia.com/advisories/48488
    http://secunia.com/advisories/48511
    http://secunia.com/advisories/48596
    http://secunia.com/advisories/48712
    http://secunia.com/advisories/57260
    http://www.debian.org/security/2012/dsa-2441
    http://www.gnu.org/software/gnutls/security.html
    http://www.mandriva.com/security/advisories?name=MDVSA-2012:040
    http://www.openwall.com/lists/oss-security/2012/03/21/4
    http://www.openwall.com/lists/oss-security/2012/03/21/5
    http://www.securityfocus.com/bid/52667
    http://www.securitytracker.com/id?1026828
    http://www.ubuntu.com/usn/USN-1418-1
    https://bugzilla.redhat.com/show_bug.cgi?id=805432
    http://archives.neohapsis.com/archives/bugtraq/2012-03/0099.html
    http://article.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/5910
    http://article.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/5912
    http://blog.mudynamics.com/2012/03/20/gnutls-and-libtasn1-vulns/
    http://git.savannah.gnu.org/gitweb/?p=gnutls.git%3Ba=commit%3Bh=422214868061370aeeb0ac9cd0f021a5c350a57d
    http://git.savannah.gnu.org/gitweb/?p=gnutls.git%3Ba=commit%3Bh=b495740f2ff66550ca9395b3fda3ea32c3acb185
    http://lists.fedoraproject.org/pipermail/package-announce/2012-April/077071.html
    http://lists.fedoraproject.org/pipermail/package-announce/2012-March/076496.html
    http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00001.html
    http://osvdb.org/80259
    http://rhn.redhat.com/errata/RHSA-2012-0429.html
    http://rhn.redhat.com/errata/RHSA-2012-0488.html
    http://rhn.redhat.com/errata/RHSA-2012-0531.html
    http://secunia.com/advisories/48488
    http://secunia.com/advisories/48511
    http://secunia.com/advisories/48596
    http://secunia.com/advisories/48712
    http://secunia.com/advisories/57260
    http://www.debian.org/security/2012/dsa-2441
    http://www.gnu.org/software/gnutls/security.html
    http://www.mandriva.com/security/advisories?name=MDVSA-2012:040
    http://www.openwall.com/lists/oss-security/2012/03/21/4
    http://www.openwall.com/lists/oss-security/2012/03/21/5
    http://www.securityfocus.com/bid/52667
    http://www.securitytracker.com/id?1026828
    http://www.ubuntu.com/usn/USN-1418-1
    https://bugzilla.redhat.com/show_bug.cgi?id=805432

    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