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If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important. If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery.
Vulnerability Assessment Details
MIT Kerberos 5: Multiple vulnerabilities
Detailed Explanation for this Vulnerability Assessment
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
(CVE-2005-1174). He also discovered that the same request could lead to
a single-byte heap overflow (CVE-2005-1175). Magnus Hagander discovered
that krb5_recvauth() function of MIT Kerberos 5 might try to
double-free memory (CVE-2005-1689).
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.
There are no known workarounds at this time.
All MIT Kerberos 5 users should upgrade to the latest available
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-crypt/mit-krb5-1.4.1-r1"
Network Security Threat Level: High
Networks Security ID:
Vulnerability Assessment Copyright: (C) 2005 Michel Arboi
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