F5 Networks BIG-IP : Linux kernel vulnerability (K17462)

Low Nessus Plugin ID 87903

Synopsis

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

Description

arch/x86/kernel/entry_64.S in the Linux kernel before 3.19.2 does not prevent the TS_COMPAT flag from reaching a user-mode task, which might allow local users to bypass the seccomp or audit protection mechanism via a crafted application that uses the (1) fork or (2) close system call, as demonstrated by an attack against seccomp before 3.16.
(CVE-2015-2830)

Impact

An authenticated attacker may be able to cause an escalation of privileges through a crafted application that uses the fork or close system call.

Solution

Upgrade to one of the non-vulnerable versions listed in the F5 Solution K17462.

See Also

https://support.f5.com/csp/article/K17462

Plugin Details

Severity: Low

ID: 87903

File Name: f5_bigip_SOL17462.nasl

Version: 2.9

Type: local

Published: 2016/01/14

Updated: 2019/01/04

Dependencies: 76940

Configuration: Enable paranoid mode

Risk Information

Risk Factor: Low

CVSS v2.0

Base Score: 1.9

Temporal Score: 1.4

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

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

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_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 Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2015/10/19

Reference Information

CVE: CVE-2015-2830

BID: 73699