Vulnerability Assessment & Network Security Forums



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.


Home >> Browse Vulnerability Assessment Database >> Ubuntu Local Security Checks >> USN56-1 : exim4 vulnerabilities


Vulnerability Assessment Details

USN56-1 : exim4 vulnerabilities

Vulnerability Assessment Summary
exim4 vulnerabilities

Detailed Explanation for this Vulnerability Assessment

Summary :

These remote packages are missing security patches :
- exim4
- exim4-base
- exim4-config
- exim4-daemon-heavy
- exim4-daemon-light
- eximon4


Description :

A flaw has been found in the host_aton() function, which can overflow
a buffer if it is presented with an illegal IPv6 address that has more
than 8 components. When supplying certain command line parameters, the
input was not checked, so that a local attacker could possibly exploit
the buffer overflow to run arbitrary code with the rights of the
Exim mail server. (CVE-2005-0021)

Additionally, the BASE64 decoder in the SPA authentication handler did
not check the size of its output buffer. By sending an invalid BASE64
authentication string, a remote attacker could overflow the buffer,
which could possibly be exploited to run arbitrary code with the
rights of the Exim mail server. (CVE-2005-0022)

Solution :

Upgrade to :
- exim4-4.34-5ubuntu1.1 (Ubuntu 4.10)
- exim4-base-4.34-5ubuntu1.1 (Ubuntu 4.10)
- exim4-config-4.34-5ubuntu1.1 (Ubuntu 4.10)
- exim4-daemon-heavy-4.34-5ubuntu1.1 (Ubuntu 4.10)
- exim4-daemon-light-4.34-5ubuntu1.1 (Ubuntu 4.10)
- eximon4-4.34-5ubuntu1.1 (Ubuntu 4.10)



Network Security Threat Level: High


Networks Security ID:

Vulnerability Assessment Copyright: Ubuntu Security Notice (C) 2005 Canonical, Inc. / NASL script (C) 2005 Michel Arboi

Cables, Connectors

OpenBox Stainless Steel Wine Glass-Double Walled Insulated Vacuum Tumbler 10 oz
$11.32
OpenBox Stainless Steel Wine Glass-Double Walled Insulated Vacuum Tumbler 10 oz pictureELP Mini Desk Electric Vacuum Cleaner For PC Keyboard,TV Satellite
$22.99
ELP Mini Desk Electric Vacuum Cleaner For PC Keyboard,TV Satellite pictureHoover Vacuum Elite Rewind UH71009 Screws Screw Set
$10.85
Hoover Vacuum Elite Rewind UH71009 Screws Screw Set pictureHoover Vacuum Elite Rewind UH71009 Lower House Assembly
$12.85
Hoover Vacuum Elite Rewind UH71009 Lower House Assembly picture


Discussions

No Discussions have been posted on this vulnerability.