lib/gssapi/spnego/spnego_mech.c in MIT Kerberos 5 (aka krb5) before 1.14 relies on an inappropriate context handle, which allows remote attackers to cause a denial of service (incorrect pointer read and process crash) via a crafted SPNEGO packet that is mishandled during a gss_inquire_context call.

References

• https://nvd.nist.gov/vuln/detail/CVE-2015-2695
• krb5/krb5@b51b33f
• https://security.gentoo.org/glsa/201611-14
• http://krbdev.mit.edu/rt/Ticket/Display.html?id=8244
• http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00006.html
• http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00007.html
• http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00014.html
• http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00022.html
• http://www.debian.org/security/2015/dsa-3395
• http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
• http://www.securityfocus.com/bid/90687
• http://www.securitytracker.com/id/1034084
• http://www.ubuntu.com/usn/USN-2810-1