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[ GLSA 201201-14 ] MIT Kerberos 5 Applications: Multiple vulnerabilities
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PostPosted: Tue Jan 24, 2012 1:26 am    Post subject: [ GLSA 201201-14 ] MIT Kerberos 5 Applications: Multiple vul Reply with quote

Gentoo Linux Security Advisory

Title: MIT Kerberos 5 Applications: Multiple vulnerabilities (GLSA 201201-14)
Severity: normal
Exploitable: remote
Date: January 23, 2012
Bug(s): #374229, #396137
ID: 201201-14

Synopsis

Multiple vulnerabilities have been found in MIT Kerberos 5
Applications, the most severe of which may allow execution of arbitrary
code.


Background

A suite of applications that implement the Kerberos 5 network protocol
from MIT.


Affected Packages

Package: app-crypt/mit-krb5-appl
Vulnerable: < 1.0.2-r1
Unaffected: >= 1.0.2-r1
Architectures: All supported architectures


Description

Multiple vulnerabilities have been discovered in MIT Kerberos 5
Applications:
  • An error in the FTP daemon prevents it from dropping its initial
    effective group identifier (CVE-2011-1526).
  • A boundary error in the telnet daemon and client could cause a buffer
    overflow (CVE-2011-4862).


Impact

An unauthenticated remote attacker may be able to execute arbitrary code
with the privileges of the user running the telnet daemon or client.
Furthermore, an authenticated remote attacker may be able to read or
write files owned by the same group as the effective group of the FTP
daemon.


Workaround

There is no known workaround at this time.

Resolution

All MIT Kerberos 5 Applications users should upgrade to the latest
version:
Code:
# emerge --sync
      # emerge --ask --oneshot --verbose
      ">=app-crypt/mit-krb5-appl-1.0.2-r1"
   


References

CVE-2011-1526
CVE-2011-4862
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