Apache Mod_Access_Referer NULL Pointer Dereference Denial of Service Vulnerability

BID:7375

Info

Apache Mod_Access_Referer NULL Pointer Dereference Denial of Service Vulnerability

Bugtraq ID: 7375
Class: Failure to Handle Exceptional Conditions
CVE: CVE-2003-1054
Remote: Yes
Local: No
Published: Apr 16 2003 12:00AM
Updated: Jul 11 2009 09:06PM
Credit: The discovery of this vulnerability has been credited to zillion <[email protected]>.
Vulnerable: mod_access_referer mod_access_referer 1.0.2
- Apache Apache 2.0.45
- Apache Apache 2.0.44
- Apache Apache 2.0.43
- Apache Apache 2.0.42
- Apache Apache 2.0.41
- Apache Apache 2.0.40
- Apache Apache 2.0.39
- Apache Apache 2.0.38
- Apache Apache 2.0.37
- Apache Apache 2.0.36
- Apache Apache 2.0.35
- Apache Apache 2.0.32
- Apache Apache 2.0.28
- Apache Apache 2.0
- Apache Apache 1.3.27
- Apache Apache 1.3.26
- Apache Apache 1.3.25
- Apache Apache 1.3.24
- Apache Apache 1.3.23
- Apache Apache 1.3.22
- Apache Apache 1.3.20
- Apache Apache 1.3.19
- Apache Apache 1.3.18
- Apache Apache 1.3.17
- Apache Apache 1.3.14
- Apache Apache 1.3.12
- Apache Apache 1.3.11
- Apache Apache 1.3.9
- Apache Apache 1.3.6
- Apache Apache 1.3.4
- Apache Apache 1.3.3
- Apache Apache 1.3.1
- Apache Apache 1.3
Not Vulnerable:

Discussion

Apache Mod_Access_Referer NULL Pointer Dereference Denial of Service Vulnerability

A vulnerability has been reported for the mod_access_referer Apache module. The problem occurs when parsing invalid HTTP referer header fields. If this vulnerability were to be triggered, it may be possible to trigger a NULL pointer dereference, effectively causing Apache to segfault.

Exploit / POC

Apache Mod_Access_Referer NULL Pointer Dereference Denial of Service Vulnerability

The following proof of concept HTTP referer header field has been made available:

Referer: ://its-missing-http.com

Solution / Fix

Apache Mod_Access_Referer NULL Pointer Dereference Denial of Service Vulnerability

Solution:
Currently we are not aware of any vendor-supplied patches for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected] <mailto:[email protected]>.

References

Apache Mod_Access_Referer NULL Pointer Dereference Denial of Service Vulnerability

References:

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