CVE-2014-5355

MEDIUM

Description

MIT Kerberos 5 (aka krb5) through 1.13.1 incorrectly expects that a krb5_read_message data field is represented as a string ending with a '\0' character, which allows remote attackers to (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 '\0' character, related to appl/user_user/server.c and lib/krb5/krb/recvauth.c.

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

Details

Source: MITRE

Published: 2015-02-20

Updated: 2020-01-21

Risk Information

CVSS v2.0

Base Score: 5

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

Impact Score: 2.9

Exploitability Score: 10

Severity: MEDIUM