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.
Vulnerability Assessment Details
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.
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
There is no known workaround at this time. All users are encouraged to
upgrade to the latest available version:
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
|HP PROLIANT BL460C G8 SERVER TWO E5-2667V2 3.30GHZ 64GB 2 X 300GB 15K SAS
|IBM HS22 BLADECENTER SERVER E5520 2.26GHZ 16GB 2 X 600GB 10K SAS
|DELL POWEREDGE M915 SERVER TWO AMD 6378 2.40GHZ 128GB 146GB 15K SAS
|HP PROLIANT BL460C G8 SERVER E5-2690V2 3.0GHZ 48GB 1.6TB SSD
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