SB2015022001 - Input validation error in MIT Kerberos 5
Published: February 20, 2015 Updated: May 27, 2022
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Input validation error (CVE-ID: CVE-2014-5355)
The vulnerability allows remote attackers to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can (1) cause a denial of service (NULL pointer dereference) via a zero-byte version string or (2) cause a denial of service (out-of-bounds read) by omitting the '' character, related to appl/user_user/server.c and lib/krb5/krb/recvauth.c.
Remediation
Install update from vendor's website.
References
- http://krbdev.mit.edu/rt/Ticket/Display.html?id=8050
- http://lists.opensuse.org/opensuse-updates/2015-03/msg00061.html
- http://rhn.redhat.com/errata/RHSA-2015-0794.html
- http://www.mandriva.com/security/advisories?name=MDVSA-2015:069
- http://www.oracle.com/technetwork/topics/security/bulletinjan2015-2370101.html
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
- http://www.securityfocus.com/bid/74042
- http://www.ubuntu.com/usn/USN-2810-1
- https://github.com/krb5/krb5/commit/102bb6ebf20f9174130c85c3b052ae104e5073ec
- https://lists.debian.org/debian-lts-announce/2018/01/msg00040.html