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 >> USN251-1 : libtasn1-2 vulnerability


Vulnerability Assessment Details

USN251-1 : libtasn1-2 vulnerability

Vulnerability Assessment Summary
libtasn1-2 vulnerability

Detailed Explanation for this Vulnerability Assessment

Summary :

These remote packages are missing security patches :
- gnutls-bin
- libgnutls-doc
- libgnutls10
- libgnutls10-dev
- libgnutls11
- libgnutls11-dbg
- libgnutls11-dev
- libtasn1-2
- libtasn1-2-dev


Description :

Evgeny Legerov discovered a buffer overflow in the DER format decoding
function of the libtasn library. This library is mainly used by the
GNU TLS library
by sending a specially crafted X.509 certificate to a
server which uses TLS encryption/authentication, a remote attacker
could exploit this to crash that server process and possibly even
execute arbitrary code with the rights of that server.

In order to fix the vulnerability in libtasn, several internal
function signatures had to be changed
some of these functions are
used by the GNU TLS library, so that library needs to be updated as
well.

Solution :

Upgrade to :
- gnutls-bin-1.0.16-13.1ubuntu1.1 (Ubuntu 5.10)
- libgnutls-doc-1.0.4-3ubuntu1.2 (Ubuntu 4.10)
- libgnutls10-1.0.4-3ubuntu1.2 (Ubuntu 4.10)
- libgnutls10-dev-1.0.4-3ubuntu1.2 (Ubuntu 4.10)
- libgnutls11-1.0.16-13.1ubuntu1.1 (Ubuntu 5.10)
- libgnutls11-dbg-1.0.16-13.1ubuntu1.1 (Ubuntu 5.10)
- libgnutls11-dev-1.0.16-13.1ubuntu1.1 (Ubuntu 5.10)
- libtasn1-2-0.2.10-4ubuntu0.1 (Ubuntu 5.10)
- libtasn1-2-dev-0.2.10-4ubuntu0.1 (Ubuntu 5.10)



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

IBM HS22 BLADECENTER SERVER E5630 2.53GHZ 8GB 2 X 1.6TB SSD
$2469.0
IBM HS22 BLADECENTER SERVER E5630 2.53GHZ 8GB 2 X 1.6TB SSD pictureIBM HS22 BLADECENTER SERVER E5620 2.40GHZ 4GB RAM 146GB 15K SAS
$959.0
IBM HS22 BLADECENTER SERVER E5620 2.40GHZ 4GB RAM 146GB 15K SAS pictureIBM System x3850 X5 Server 4x E7-4830 2.13GHz (32 Total Cores) 64GB M1015 Raid
$800.0
IBM System x3850 X5 Server 4x E7-4830 2.13GHz (32 Total Cores) 64GB M1015 Raid pictureIBM SYSTEM X3550 M3 SERVER E5640 2.66GHZ 24GB 3 X 146GB 15K SAS
$789.0
IBM SYSTEM X3550 M3 SERVER E5640 2.66GHZ 24GB 3 X 146GB 15K SAS picture


Discussions

No Discussions have been posted on this vulnerability.