Debian DSA-1861-1 : libxml - several vulnerabilities

Medium Nessus Plugin ID 44726

Synopsis

The remote Debian host is missing a security-related update.

Description

Rauli Kaksonen, Tero Rontti and Jukka Taimisto discovered several vulnerabilities in libxml, a library for parsing and handling XML data files, which can lead to denial of service conditions or possibly arbitrary code execution in the application using the library. The Common Vulnerabilities and Exposures project identifies the following problems :

- CVE-2009-2416 An XML document with specially crafted Notation or Enumeration attribute types in a DTD definition leads to the use of a pointers to memory areas which have already been freed.

- CVE-2009-2414 Missing checks for the depth of ELEMENT DTD definitions when parsing child content can lead to extensive stack-growth due to a function recursion which can be triggered via a crafted XML document.

Solution

Upgrade the libxml packages.

For the oldstable distribution (etch), this problem has been fixed in version 1.8.17-14+etch1.

The stable (lenny), testing (squeeze) and unstable (sid) distribution do not contain libxml anymore but libxml2 for which DSA-1859-1 has been released.

See Also

https://security-tracker.debian.org/tracker/CVE-2009-2416

https://security-tracker.debian.org/tracker/CVE-2009-2414

https://www.debian.org/security/2009/dsa-1861

Plugin Details

Severity: Medium

ID: 44726

File Name: debian_DSA-1861.nasl

Version: 1.21

Type: local

Agent: unix

Published: 2010/02/24

Updated: 2019/08/02

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 4.3

Temporal Score: 3.2

Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:libxml, cpe:/o:debian:debian_linux:4.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2009/08/13

Reference Information

CVE: CVE-2009-2414, CVE-2009-2416

BID: 36010

DSA: 1861

CWE: 119, 399