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    CVE-2009-1415

    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.

    Published:Apr 30, 2009
    Last Modified:Apr 23, 2026
    EPS:Apr 30, 2009
    EPSS Score:0.17762
    CVSS Score:4.3

    Affected Products

    Vendor
    Gnu
    Product
    Gnutls

    Exploits

    http://thread.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/3488http://thread.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/3488https://www.exploit-db.com/exploits/32964

    Common Weakness Enumeration

    CWE-824 Access of Uninitialized Pointer

    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://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
    https://exchange.xforce.ibmcloud.com/vulnerabilities/50445
    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
    https://exchange.xforce.ibmcloud.com/vulnerabilities/50445

    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