Race condition in the mod_auth_shadow module for the Apache HTTP Server allows remote attackers to bypass authentication, and read and possibly modify data, via vectors related to improper interaction with an external helper application for validation of credentials.
The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.
Link | Tags |
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http://www.vupen.com/english/advisories/2010/0908 | vdb entry |
http://www.securityfocus.com/bid/39538 | vdb entry |
http://www.mandriva.com/security/advisories?name=MDVSA-2010:081 | vendor advisory |
http://lists.fedoraproject.org/pipermail/package-announce/2010-May/041340.html | vendor advisory |
http://secunia.com/advisories/39823 | third party advisory |
http://lists.fedoraproject.org/pipermail/package-announce/2010-May/041326.html | vendor advisory |
https://bugzilla.redhat.com/show_bug.cgi?id=578168 | patch |
http://www.vupen.com/english/advisories/2010/1148 | vdb entry |