AIX 6.1 TL 9 : libxml2 (IV80588)

Medium Nessus Plugin ID 88883

Synopsis

The remote AIX host has a version of libxml2 installed that is affected by multiple vulnerabilities.

Description

The remote AIX host has a version of libxml2 installed that is affected by the following vulnerabilities :

- A heap-based buffer overflow condition exists in the xmlParseEntityDecl() and xmlParseConditionalSections() functions within file parser.c due to a failure to properly stop parsing invalid input. An unauthenticated, remote attacker can exploit this, via specially crafted XML data, to cause a denial of service condition or potentially disclose sensitive memory contents.
(CVE-2015-7941)

- A heap-based buffer overflow condition exists in the xmlParseConditionalSections() function within file parser.c due to not properly skipping intermediary entities. An unauthenticated, remote attacker can exploit this, via specially crafted XML data, to cause a denial of service condition. (CVE-2015-7942)

- A buffer overflow condition exists in the xmlNextChar() function due to improper bounds checking. A local attacker can exploit this, via a malformed XML file, to cause a denial of service condition or the execution of arbitrary code. (CVE-2015-8241)

Solution

Install the appropriate interim fix.

See Also

http://aix.software.ibm.com/aix/efixes/security/libxml2_advisory2.asc

Plugin Details

Severity: Medium

ID: 88883

File Name: aix_IV80588.nasl

Version: $Revision: 2.3 $

Type: local

Published: 2016/02/23

Modified: 2016/08/05

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSSv2

Base Score: 6.8

Temporal Score: 5.3

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

Temporal Vector: CVSS2#E:POC/RL:OF/RC:ND

Vulnerability Information

CPE: cpe:/o:ibm:aix:6.1

Required KB Items: Host/AIX/lslpp, Host/local_checks_enabled, Host/AIX/version

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2016/02/22

Vulnerability Publication Date: 2015/02/22

Reference Information

CVE: CVE-2015-7941, CVE-2015-7942, CVE-2015-8241

BID: 74241, 77621, 79507

OSVDB: 121175, 130435