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

Dell PowerEdge R720xd 2x E5-2640 v2 2.0GHz 8 Core 192GB 12x 1TB 7.2K SATA H710P
$3750.0
Dell PowerEdge R720xd 2x E5-2640 v2 2.0GHz 8 Core 192GB 12x 1TB 7.2K SATA H710P pictureHP ProLiant DL380 G7 2x X5650 2.66GHz 6 Core 72GB 8x 300GB 15K SAS P410i 512MB
$3402.0
HP ProLiant DL380 G7 2x X5650 2.66GHz 6 Core 72GB 8x 300GB 15K SAS P410i 512MB pictureDell PowerEdge R720xd 2x E5-2620 2.0GHz 6 Core 16GB 12x 600GB 15K SAS H710P
$3890.0
Dell PowerEdge R720xd 2x E5-2620 2.0GHz 6 Core 16GB 12x 600GB 15K SAS H710P pictureHP ProLiant DL380 G7 2x X5650 2.66GHz 6 Core 144GB 8x 146GB 15K SAS P410i 512MB
$2088.07
HP ProLiant DL380 G7 2x X5650 2.66GHz 6 Core 144GB 8x 146GB 15K SAS P410i 512MB picture


Discussions

No Discussions have been posted on this vulnerability.