Debian DSA-1862-1 : linux-2.6 - privilege escalation

High Nessus Plugin ID 44727

Synopsis

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

Description

A vulnerability has been discovered in the Linux kernel that may lead to privilege escalation. The Common Vulnerabilities and Exposures project identifies the following problem :

- CVE-2009-2692 Tavis Ormandy and Julien Tinnes discovered an issue with how the sendpage function is initialized in the proto_ops structure. Local users can exploit this vulnerability to gain elevated privileges.

Solution

Upgrade the linux-2.6 and user-mode-linux packages.

For the oldstable distribution (etch), this problem will be fixed in updates to linux-2.6 and linux-2.6.24.

For the stable distribution (lenny), this problem has been fixed in version 2.6.26-17lenny2.

Note: Debian carefully tracks all known security issues across every linux kernel package in all releases under active security support.
However, given the high frequency at which low-severity security issues are discovered in the kernel and the resource requirements of doing an update, updates for lower priority issues will normally not be released for all kernels at the same time. Rather, they will be released in a staggered or 'leap-frog' fashion.

See Also

https://security-tracker.debian.org/tracker/CVE-2009-2692

https://www.debian.org/security/2009/dsa-1862

Plugin Details

Severity: High

ID: 44727

File Name: debian_DSA-1862.nasl

Version: 1.15

Type: local

Agent: unix

Published: 2010/02/24

Updated: 2018/11/10

Dependencies: 12634

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 7.2

Temporal Score: 5.6

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

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:linux-2.6, cpe:/o:debian:debian_linux:5.0

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: 2009/08/14

Exploitable With

CANVAS (CANVAS)

Core Impact

Metasploit (Linux Kernel Sendpage Local Privilege Escalation)

Reference Information

CVE: CVE-2009-2692

BID: 36038

DSA: 1862

CWE: 119