Vulnerability Assessment & Network Security Forums



If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important.  If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery.


Home >> Browse Vulnerability Assessment Database >> Gentoo Local Security Checks >> [GLSA-200407-03] Apache 2: Remote denial of service attack


Vulnerability Assessment Details

[GLSA-200407-03] Apache 2: Remote denial of service attack

Vulnerability Assessment Summary
Apache 2: Remote denial of service attack

Detailed Explanation for this Vulnerability Assessment
The remote host is affected by the vulnerability described in GLSA-200407-03
(Apache 2: Remote denial of service attack)


A bug in the protocol.c file handling header lines will cause Apache to
allocate memory for header lines starting with TAB or SPACE.

Impact

A possible hacker can exploit this vulnerability to perform a Denial of Service
attack by causing Apache to exhaust all memory. On 64 bit systems with more
than 4GB of virtual memory a possible integer signedness error could lead
to a buffer based overflow causing Apache to crash and under some
circumstances execute arbitrary code as the user running Apache, usually
"apache".

Workaround

There is no known workaround at this time. All users are encouraged to
upgrade to the latest available version:

References:
http://www.guninski.com/httpd1.html
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-0493


Solution:
Apache 2 users should upgrade to the latest version of Apache:
# emerge sync
# emerge -pv ">=net-www/apache-2.0.49-r4"
# emerge ">=net-www/apache-2.0.49-r4"


Network Security Threat Level: Medium


Networks Security ID:

Vulnerability Assessment Copyright: (C) 2005 Michel Arboi

Cables, Connectors

Sun SAS9200-8e 375-3641 8 Port 6Gbps SAS 2 PCI Express RAID HBA Card Low Profile
$49.99
Sun SAS9200-8e 375-3641 8 Port 6Gbps SAS 2 PCI Express RAID HBA Card Low Profile pictureLSI SAS9211-8i 8-Port PCI-E SAS Raid Controller Card H3-5250-01D
$41.99
LSI SAS9211-8i 8-Port PCI-E SAS Raid Controller Card H3-5250-01D pictureNEW Startech PEXM2SAT3422 2x M.2 NGFF SSD RAID Controller Card Plus SATA III
$99.99
NEW Startech PEXM2SAT3422 2x M.2 NGFF SSD RAID Controller Card Plus SATA III pictureData Robotics Drobo DR04D-U External Raid 4 Bay USB Hard Drive Storage Array
$29.99
Data Robotics Drobo DR04D-U External Raid 4 Bay USB Hard Drive Storage Array picture


Discussions

No Discussions have been posted on this vulnerability.