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>> mod_auth_kerb for Apache "der_get_oid()" Off-By-One Buffer Overflow Vulnerability

Title : mod_auth_kerb for Apache "der_get_oid()" Off-By-One Buffer Overflow Vulnerability
VUPEN ID : VUPEN/ADV-2006-4633
CVE ID : CVE-2006-5989
Rated as : High Risk 
Remotely Exploitable : Yes
Locally Exploitable : Yes
Release Date : 2006-11-21


Technical Description    Receive VUPEN Security alerts in a Text format  Receive VUPEN Security alerts in a PDF format  Receive VUPEN Security alerts in an XML format 

A vulnerability has been identified in mod_auth_kerb (Module for Apache), which could be exploited by remote attackers to compromise a vulnerable web server. This flaw is due to an off-by-one buffer overflow error in the "der_get_oid()" [spnegokrb5/der_get.c] function, which could be exploited by remote attackers to crash a vulnerable server or execute arbitrary commands.

Affected Products

mod_auth_kerb (module for Apache) versions 5.x

Solution

Upgrade to version 5.3 :
http://sourceforge.net/projects/modauthkerb/

References

http://www.vupen.com/english/advisories/2006/4633
http://sourceforge.net/project/shownotes.php?release_id=465673
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=216482
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=206736

Credits

Vulnerability reported by Kevin Unthank

ChangeLog

2006-11-21 : Initial release
2006-11-22 : Updated Solution

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