Debian DSA-1841-1 : git-core - denial of service

medium Nessus Plugin ID 44706

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Synopsis

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

Description

It was discovered that git-daemon which is part of git-core, a popular distributed revision control system, is vulnerable to denial of service attacks caused by a programming mistake in handling requests containing extra unrecognized arguments which results in an infinite loop. While this is no problem for the daemon itself as every request will spawn a new git-daemon instance, this still results in a very high CPU consumption and might lead to denial of service conditions.

Solution

Upgrade the git-core packages.

For the oldstable distribution (etch), this problem has been fixed in version 1.4.4.4-4+etch3.

For the stable distribution (lenny), this problem has been fixed in version 1.5.6.5-3+lenny2.

See Also

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=532935

https://www.debian.org/security/2009/dsa-1841

Plugin Details

Severity: Medium

ID: 44706

File Name: debian_DSA-1841.nasl

Version: 1.10

Type: local

Agent: unix

Published: 2/24/2010

Updated: 1/4/2021

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

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

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:git-core, cpe:/o:debian:debian_linux:4.0, 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: 7/25/2009

Reference Information

CVE: CVE-2009-2108

BID: 35338

DSA: 1841

CWE: 399