Juniper Junos libxml2 Library Multiple Vulnerabilities (JSA10669)

High Nessus Plugin ID 80957

Synopsis

The remote device is missing a vendor-supplied security patch.

Description

According to its self-reported version number, the remote Junos device is affected by multiple vulnerabilities in the libxml2 library :

- A heap-based buffer overflow vulnerability exists which can result in arbitrary code execution. (CVE-2011-1944)

- A denial of service vulnerability exists which can result in excessive CPU consumption. (CVE-2012-0841)

- A heap-based buffer overflow vulnerability exists in the 'xmlParseAttValueComplex' function which can result in arbitrary code execution. (CVE-2012-5134)

- A denial of service vulnerability exists due to excessive CPU and memory consumption in the processing of XML files containing entity declarations with long replacement text (also known as 'internal entity expansion with linear complexity'). (CVE-2013-0338)

- A denial of service vulnerability exists related to the XML_PARSER_EOF state checking. (CVE-2013-2877)

These vulnerabilities can be exploited by a remote attacker via a specially crafted XML file.

Solution

Apply the relevant Junos upgrade referenced in Juniper advisory JSA10669.

See Also

https://kb.juniper.net/InfoCenter/index?page=content&id=JSA10669

Plugin Details

Severity: High

ID: 80957

File Name: juniper_jsa10669.nasl

Version: 1.9

Type: combined

Published: 2015/01/23

Updated: 2018/07/12

Dependencies: 55932

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 9.3

Temporal Score: 7.3

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

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

Vulnerability Information

CPE: cpe:/o:juniper:junos

Required KB Items: Host/Juniper/JUNOS/Version

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2015/01/14

Vulnerability Publication Date: 2011/03/23

Reference Information

CVE: CVE-2011-1944, CVE-2012-0841, CVE-2012-5134, CVE-2013-0338, CVE-2013-2877

BID: 48056, 52107, 56684, 58180, 61050