Debian DSA-2508-1 : kfreebsd-8 - privilege escalation

high Nessus Plugin ID 60088

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Synopsis

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

Description

Rafal Wojtczuk from Bromium discovered that FreeBSD wasn't handling correctly uncanonical return addresses on Intel amd64 CPUs, allowing privilege escalation to kernel for local users.

Solution

Upgrade the kfreebsd-8 packages.

For the stable distribution (squeeze), this problem has been fixed in version 8.1+dfsg-8+squeeze3.

Plugin Details

Severity: High

ID: 60088

File Name: debian_DSA-2508.nasl

Version: 1.15

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 7/23/2012

Updated: 1/11/2021

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Critical

Score: 9.7

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 6.3

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

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:6.0, p-cpe:/a:debian:debian_linux:kfreebsd-8

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: 7/22/2012

Vulnerability Publication Date: 6/12/2012

Exploitable With

CANVAS (CANVAS)

Core Impact

Metasploit (FreeBSD Intel SYSRET Privilege Escalation)

Reference Information

CVE: CVE-2012-0217

BID: 53856

DSA: 2508

Detections

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