Debian DSA-2545-1 : qemu - multiple vulnerabilities

high Nessus Plugin ID 62016

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Synopsis

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

Description

Multiple vulnerabilities have been discovered in QEMU, a fast processor emulator. The Common Vulnerabilities and Exposures project identifies the following problems :

- CVE-2012-2652 :
The snapshot mode of QEMU (-snapshot) incorrectly handles temporary files used to store the current state, making it vulnerable to symlink attacks (including arbitrary file overwriting and guest information disclosure) due to a race condition.

- CVE-2012-3515 :
QEMU does not properly handle VT100 escape sequences when emulating certain devices with a virtual console backend. An attacker within a guest with access to the vulnerable virtual console could overwrite memory of QEMU and escalate privileges to that of the qemu process.

Solution

Upgrade the qemu packages.

For the stable distribution (squeeze), these problems have been fixed in version 0.12.5+dfsg-3squeeze2.

Plugin Details

Severity: High

ID: 62016

File Name: debian_DSA-2545.nasl

Version: 1.13

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 9/10/2012

Updated: 1/11/2021

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

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

Vulnerability Information

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

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

Exploit Ease: No known exploits are available

Patch Publication Date: 9/8/2012

Reference Information

CVE: CVE-2012-2652, CVE-2012-3515

BID: 53725

DSA: 2545

Detections

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