Ubuntu 6.06 LTS / 8.04 LTS / 8.10 / 9.04 : apache2 regression (USN-802-2)

Ubuntu Security Notice (C) 2009-2013 Canonical, Inc. / NASL script (C) 2009-2013 Tenable Network Security, Inc.


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).

Solution :

Update the affected packages.

Risk factor :

High / CVSS Base Score : 7.1
(CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:C)
Public Exploit Available : true

Family: Ubuntu Local Security Checks

Nessus Plugin ID: 40655 ()

Bugtraq ID:

CVE ID: CVE-2009-1890
CVE-2009-1891