Detections
Analytics
Ubuntu 6.06 LTS / 8.04 LTS / 8.10 / 9.04 : apache2 regression (USN-802-2)
high Nessus Plugin ID 40655
Synopsis
The remote Ubuntu host is missing one or more security-related patches.Description
USN-802-1 fixed vulnerabilities in Apache. The upstream fix for CVE-2009-1891 introduced a regression that would cause Apache children to occasionally segfault when mod_deflate is used. This update fixes the problem.We apologize for the inconvenience.
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. (CVE-2009-1891).
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.
Solution
Update the affected packages.See Also
Plugin Details
Severity: High
ID: 40655
File Name: ubuntu_USN-802-2.nasl
Version: 1.22
Type: local
Agent: unix
Family: Ubuntu Local Security Checks
Published: 8/20/2009
Updated: 1/19/2021
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.4
CVSS v2
Risk Factor: High
Base Score: 7.1
Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:C
Vulnerability Information
CPE: p-cpe:/a:canonical:ubuntu_linux:apache2-common, p-cpe:/a:canonical:ubuntu_linux:apache2-mpm-prefork, p-cpe:/a:canonical:ubuntu_linux:apache2-doc, p-cpe:/a:canonical:ubuntu_linux:libapr0-dev, cpe:/o:canonical:ubuntu_linux:9.04, p-cpe:/a:canonical:ubuntu_linux:apache2-mpm-worker, 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-src, p-cpe:/a:canonical:ubuntu_linux:apache2-suexec, p-cpe:/a:canonical:ubuntu_linux:apache2.2-common, cpe:/o:canonical:ubuntu_linux:6.06:-:lts, cpe:/o:canonical:ubuntu_linux:8.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:apache2-mpm-event, p-cpe:/a:canonical:ubuntu_linux:apache2-utils, p-cpe:/a:canonical:ubuntu_linux:apache2, p-cpe:/a:canonical:ubuntu_linux:apache2-prefork-dev, p-cpe:/a:canonical:ubuntu_linux:apache2-mpm-perchild, p-cpe:/a:canonical:ubuntu_linux:libapr0, cpe:/o:canonical:ubuntu_linux:8.10
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: 8/19/2009
Reference Information
CVE: CVE-2009-1890, CVE-2009-1891