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

Intel Core i7-4770K SR147 3.50GHz Costa Rica CPU Processor Chip
$224.99
Intel Core i7-4770K SR147 3.50GHz Costa Rica CPU Processor Chip pictureAllen Bradley 1747-L552 REF C SLC 500 REV 5 SLC 5/05 CPU
$1200.0
Allen Bradley 1747-L552 REF C SLC 500 REV 5 SLC 5/05 CPU  pictureIntel A82385-20 386 CPU Cache Controller SZ232
$22.5
Intel A82385-20 386 CPU Cache Controller SZ232 pictureIntel Core i5-3570S 3.10GHz 6M LGA1155 Quad Core Desktop Processor CPU SR0T9
$99.98
Intel Core i5-3570S 3.10GHz 6M LGA1155 Quad Core Desktop Processor CPU SR0T9 picture


Discussions

No Discussions have been posted on this vulnerability.