Debian DSA-2949-1 : linux - security update

high Nessus Plugin ID 74336

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Synopsis

The remote Debian host is missing a security-related update.

Description

Several vulnerabilities have been discovered in the Linux kernel that may lead to a denial of service or privilege escalation :

 - CVE-2014-3144/ CVE-2014-3145 A local user can cause a denial of service (system crash) via crafted BPF instructions.

 - CVE-2014-3153 Pinkie Pie discovered an issue in the futex subsystem that allows a local user to gain ring 0 control via the futex syscall. An unprivileged user could use this flaw to crash the kernel (resulting in denial of service) or for privilege escalation.

Solution

Upgrade the linux packages.

For the stable distribution (wheezy), these problems have been fixed in version 3.2.57-3+deb7u2.

See Also

https://security-tracker.debian.org/tracker/CVE-2014-3144

https://security-tracker.debian.org/tracker/CVE-2014-3145

https://security-tracker.debian.org/tracker/CVE-2014-3153

https://www.debian.org/security/2014/dsa-2949

Plugin Details

Severity: High

ID: 74336

File Name: debian_DSA-2949.nasl

Version: 1.18

Type: local

Agent: unix

Published: 6/6/2014

Updated: 1/11/2021

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Critical

Score: 9.8

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 6.3

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

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:linux, cpe:/o:debian:debian_linux:7.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 6/5/2014

Vulnerability Publication Date: 5/11/2014

Exploitable With

CANVAS (CANVAS)

Core Impact

Metasploit (Android "Towelroot" Futex Requeue Kernel Exploit)

Reference Information

CVE: CVE-2014-3144, CVE-2014-3145, CVE-2014-3153

BID: 67309, 67321

DSA: 2949