GLSA-200507-11 : MIT Kerberos 5: Multiple vulnerabilities

High Nessus Plugin ID 18686


The remote Gentoo host is missing one or more security-related patches.


The remote host is affected by the vulnerability described in GLSA-200507-11 (MIT Kerberos 5: Multiple vulnerabilities)

Daniel Wachdorf discovered that MIT Kerberos 5 could corrupt the heap by freeing unallocated memory when receiving a special TCP request (CAN-2005-1174). He also discovered that the same request could lead to a single-byte heap overflow (CAN-2005-1175). Magnus Hagander discovered that krb5_recvauth() function of MIT Kerberos 5 might try to double-free memory (CAN-2005-1689).
Impact :

Although exploitation is considered difficult, a remote attacker could exploit the single-byte heap overflow and the double-free vulnerability to execute arbitrary code, which could lead to the compromise of the whole Kerberos realm. A remote attacker could also use the heap corruption to cause a Denial of Service.
Workaround :

There are no known workarounds at this time.


All MIT Kerberos 5 users should upgrade to the latest available version:
# emerge --sync # emerge --ask --oneshot --verbose '>=app-crypt/mit-krb5-1.4.1-r1'

See Also

Plugin Details

Severity: High

ID: 18686

File Name: gentoo_GLSA-200507-11.nasl

Version: $Revision: 1.14 $

Type: local

Published: 2005/07/13

Modified: 2015/04/13

Dependencies: 12634

Risk Information

Risk Factor: High


Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:mit-krb5, cpe:/o:gentoo:linux

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Patch Publication Date: 2005/07/12

Vulnerability Publication Date: 2005/07/12

Reference Information

CVE: CVE-2005-1174, CVE-2005-1175, CVE-2005-1689

OSVDB: 17841, 17842, 17843

GLSA: 200507-11

CWE: 119