F5 Networks BIG-IP : libxml2 vulnerabilities (K24322529)

Medium Nessus Plugin ID 95940

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VPR Score: 5.2

Synopsis

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

Description

CVE-2016-4447 The xmlParseElementDecl function in parser.c in libxml2 before 2.9.4 allows context-dependent attackers to cause a denial of service (heap-based buffer underread and application crash) via a crafted file, involving xmlParseName.

CVE-2016-4449 XML external entity (XXE) vulnerability in the xmlStringLenDecodeEntities function in parser.c in libxml2 before 2.9.4, when not in validating mode, allows context-dependent attackers to read arbitrary files or cause a denial of service (resource consumption) via unspecified vectors.

Solution

Upgrade to one of the non-vulnerable versions listed in the F5 Solution K24322529.

See Also

https://support.f5.com/csp/article/K24322529

Plugin Details

Severity: Medium

ID: 95940

File Name: f5_bigip_SOL24322529.nasl

Version: 3.7

Type: local

Published: 2016/12/20

Updated: 2020/03/09

Dependencies: 76940

Risk Information

Risk Factor: Medium

VPR Score: 5.2

CVSS v2.0

Base Score: 5.8

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

CVSS v3.0

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Vulnerability Information

CPE: cpe:/a:f5:big-ip_access_policy_manager, cpe:/a:f5:big-ip_advanced_firewall_manager, cpe:/a:f5:big-ip_application_acceleration_manager, cpe:/a:f5:big-ip_application_security_manager, cpe:/a:f5:big-ip_application_visibility_and_reporting, cpe:/a:f5:big-ip_global_traffic_manager, cpe:/a:f5:big-ip_link_controller, cpe:/a:f5:big-ip_local_traffic_manager, cpe:/a:f5:big-ip_policy_enforcement_manager, cpe:/a:f5:big-ip_webaccelerator, cpe:/h:f5:big-ip, cpe:/h:f5:big-ip_protocol_security_manager

Required KB Items: Host/local_checks_enabled, Host/BIG-IP/hotfix, Host/BIG-IP/modules, Host/BIG-IP/version

Patch Publication Date: 2016/12/07

Vulnerability Publication Date: 2016/06/09

Reference Information

CVE: CVE-2016-4447, CVE-2016-4449