Ubuntu 6.06 LTS / 8.04 LTS / 8.10 / 9.04 : apache2 vulnerabilities (USN-802-1)

High Nessus Plugin ID 39789


The remote Ubuntu host is missing one or more security-related patches.


It was discovered that mod_proxy_http did not properly handle a large amount of streamed data when used as a reverse proxy. A remote attacker could exploit this and cause a denial of service via memory resource consumption. This issue affected Ubuntu 8.04 LTS, 8.10 and 9.04. (CVE-2009-1890)

It was discovered that mod_deflate did not abort compressing large files when the connection was closed. A remote attacker could exploit this and cause a denial of service via CPU resource consumption.

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.


Update the affected packages.

Plugin Details

Severity: High

ID: 39789

File Name: ubuntu_USN-802-1.nasl

Version: $Revision: 1.19 $

Type: local

Agent: unix

Published: 2009/07/14

Modified: 2016/12/01

Dependencies: 12634

Risk Information

Risk Factor: High


Base Score: 7.1

Temporal Score: 5.6

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

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:apache2, p-cpe:/a:canonical:ubuntu_linux:apache2-common, p-cpe:/a:canonical:ubuntu_linux:apache2-doc, p-cpe:/a:canonical:ubuntu_linux:apache2-mpm-event, p-cpe:/a:canonical:ubuntu_linux:apache2-mpm-perchild, p-cpe:/a:canonical:ubuntu_linux:apache2-mpm-prefork, p-cpe:/a:canonical:ubuntu_linux:apache2-mpm-worker, p-cpe:/a:canonical:ubuntu_linux:apache2-prefork-dev, p-cpe:/a:canonical:ubuntu_linux:apache2-src, p-cpe:/a:canonical:ubuntu_linux:apache2-suexec, p-cpe:/a:canonical:ubuntu_linux:apache2-suexec-custom, p-cpe:/a:canonical:ubuntu_linux:apache2-threaded-dev, p-cpe:/a:canonical:ubuntu_linux:apache2-utils, p-cpe:/a:canonical:ubuntu_linux:apache2.2-common, p-cpe:/a:canonical:ubuntu_linux:libapr0, p-cpe:/a:canonical:ubuntu_linux:libapr0-dev, cpe:/o:canonical:ubuntu_linux:6.06:-:lts, cpe:/o:canonical:ubuntu_linux:8.04:-:lts, cpe:/o:canonical:ubuntu_linux:8.10, cpe:/o:canonical:ubuntu_linux:9.04

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2009/07/13

Reference Information

CVE: CVE-2009-1890, CVE-2009-1891

BID: 35565, 35623

USN: 802-1

CWE: 189, 399