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    CVE-2017-5334

    Double free vulnerability in the gnutls_x509_ext_import_proxy function in GnuTLS before 3.3.26 and 3.5.x before 3.5.8 allows remote attackers to have unspecified impact via crafted policy language information in an X.509 certificate with a Proxy Certificate Information extension.

    Published:Jan 10, 2017
    Last Modified:Apr 20, 2025
    EPS:Mar 24, 2017
    EPSS Score:0.05592
    CVSS Score:9.8

    Affected Products

    Vendor
    Gnu
    Product
    Gnutls
    Vendor
    Opensuse
    Product
    Leap
    Vendor
    Redhat
    Product
    Enterprise Linux

    Exploits

    No exploit reference

    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://lists.opensuse.org/opensuse-security-announce/2017-02/msg00005.html
    http://www.openwall.com/lists/oss-security/2017/01/10/7
    http://www.openwall.com/lists/oss-security/2017/01/11/4
    http://www.securityfocus.com/bid/95370
    http://www.securitytracker.com/id/1037576
    https://access.redhat.com/errata/RHSA-2017:2292
    https://gitlab.com/gnutls/gnutls/commit/c5aaa488a3d6df712dc8dff23a049133cab5ec1b
    https://gnutls.org/security.html#GNUTLS-SA-2017-1
    https://security.gentoo.org/glsa/201702-04
    http://lists.opensuse.org/opensuse-security-announce/2017-02/msg00005.html
    http://www.openwall.com/lists/oss-security/2017/01/10/7
    http://www.openwall.com/lists/oss-security/2017/01/11/4
    http://www.securityfocus.com/bid/95370
    http://www.securitytracker.com/id/1037576
    https://access.redhat.com/errata/RHSA-2017:2292
    https://gitlab.com/gnutls/gnutls/commit/c5aaa488a3d6df712dc8dff23a049133cab5ec1b
    https://gnutls.org/security.html#GNUTLS-SA-2017-1
    https://security.gentoo.org/glsa/201702-04

    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