Juniper Junos libxml2 Library Multiple Vulnerabilities (JSA10669)

high Nessus Plugin ID 80957
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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: 1/23/2015

Updated: 7/12/2018

Dependencies: junos_version.nasl

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

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:2.3:o:juniper:junos:*:*:*:*:*:*:*:*

Required KB Items: Host/Juniper/JUNOS/Version

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 1/14/2015

Vulnerability Publication Date: 3/23/2011

Reference Information

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

BID: 52107, 48056, 58180, 61050, 56684