critical
9.8
CWE
119
Advisory Published
CVE Published
Updated

CVE-2017-5336: Buffer Overflow

First published: Wed Jan 11 2017(Updated: )

A vulnerability was found in gnutls. A stack overflow could occur in opencdk in the cdk_pk_get_keyid function. A memory corruption could occur when parsing a maliciously crafted OpenPGP certificate. References: <a href="http://seclists.org/oss-sec/2017/q1/51">http://seclists.org/oss-sec/2017/q1/51</a> <a href="https://gnutls.org/security.html#GNUTLS-SA-2017-2">https://gnutls.org/security.html#GNUTLS-SA-2017-2</a> Upstream patch: <a href="https://gitlab.com/gnutls/gnutls/commit/5140422e0d7319a8e2fe07f02cbcafc4d6538732">https://gitlab.com/gnutls/gnutls/commit/5140422e0d7319a8e2fe07f02cbcafc4d6538732</a>

Credit: security@debian.org

Affected SoftwareAffected VersionHow to fix
redhat/gnutls<3.3.26
3.3.26
redhat/gnutls<3.5.8
3.5.8
SUSE Linux=42.1
SUSE Linux=42.2
GnuTLS<=3.3.25
GnuTLS=3.5.0
GnuTLS=3.5.1
GnuTLS=3.5.2
GnuTLS=3.5.3
GnuTLS=3.5.4
GnuTLS=3.5.5
GnuTLS=3.5.6
GnuTLS=3.5.7
debian/gnutls28
3.7.1-5+deb11u5
3.7.1-5+deb11u7
3.7.9-2+deb12u4
3.8.9-2

Remedy

http://www.openwall.com/lists/oss-security/2017/01/10/7

Remedy

http://www.openwall.com/lists/oss-security/2017/01/11/4

Remedy

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=340

Remedy

https://gitlab.com/gnutls/gnutls/commit/5140422e0d7319a8e2fe07f02cbcafc4d6538732

Remedy

https://security.gentoo.org/glsa/201702-04

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2017-5336?

    CVE-2017-5336 is classified as a high severity vulnerability due to the potential for remote code execution and memory corruption.

  • How do I fix CVE-2017-5336?

    To fix CVE-2017-5336, update GnuTLS to version 3.3.26 or later for Red Hat or to 3.7.1-5+deb11u5 or later for Debian.

  • What is affected by CVE-2017-5336?

    CVE-2017-5336 affects versions of GnuTLS up to 3.3.25 and several specific Debian and openSUSE versions.

  • What types of attacks can exploit CVE-2017-5336?

    CVE-2017-5336 can be exploited through parsing a specially crafted OpenPGP certificate, leading to stack overflow.

  • Is CVE-2017-5336 resolved in newer versions?

    Yes, CVE-2017-5336 is resolved in GnuTLS versions 3.3.26, 3.5.8, and later, as well as in specific Debian updates.

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