F5 Networks BIG-IP : Linux kernel vulnerability (K17132)

low Nessus Plugin ID 85607

Synopsis

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

Description

arch/x86/kernel/tls.c in the Thread Local Storage (TLS) implementation in the Linux kernel through 3.18.1 allows local users to bypass the espfix protection mechanism, and consequently makes it easier for local users to bypass the ASLR protection mechanism, via a crafted application that makes a set_thread_area system call and later reads a 16-bit value. (CVE-2014-8133)

Impact

This vulnerability allows local users to bypass the espfix protection mechanism, which consequently makes it easier for local users to bypass the ASLR protection mechanism using a crafted application that makes a set_thread_area system call and later reads a 16-bit value.

Solution

Upgrade to one of the non-vulnerable versions listed in the F5 Solution K17132.

See Also

https://support.f5.com/csp/article/K17132

Plugin Details

Severity: Low

ID: 85607

File Name: f5_bigip_SOL17132.nasl

Version: 2.4

Type: local

Published: 8/25/2015

Updated: 1/4/2019

Configuration: Enable paranoid mode

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

CVSS v2

Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.8

Vector: AV:L/AC:L/Au:N/C:N/I:P/A:N

Temporal Vector: E:ND/RL:OF/RC:C

Vulnerability Information

CPE: cpe:/a:f5:big-ip_access_policy_manager, cpe:/a:f5:big-ip_application_security_manager, 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_wan_optimization_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, Settings/ParanoidReport

Exploit Ease: No known exploits are available

Patch Publication Date: 8/24/2015

Reference Information

CVE: CVE-2014-8133

BID: 71684