| Summary: | <www-servers/apache-2.2.31: bypass of mod_headers rules via chunked requests (CVE-2013-5704) | ||
|---|---|---|---|
| Product: | Gentoo Security | Reporter: | Agostino Sarubbo <ago> |
| Component: | Vulnerabilities | Assignee: | Gentoo Security <security> |
| Status: | RESOLVED FIXED | ||
| Severity: | minor | CC: | polynomial-c |
| Priority: | Normal | ||
| Version: | unspecified | ||
| Hardware: | All | ||
| OS: | Linux | ||
| URL: | https://bugzilla.redhat.com/show_bug.cgi?id=1082903 | ||
| Whiteboard: | B4 [noglsa cve] | ||
| Package list: | Runtime testing required: | --- | |
CVE-2013-5704 (http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-5704): The mod_headers module in the Apache HTTP Server 2.2.22 allows remote attackers to bypass "RequestHeader unset" directives by placing a header in the trailer portion of data sent with chunked transfer coding. NOTE: the vendor states "this is not a security issue in httpd as such." this should be already fixed in current versions in the tree: https://bugzilla.redhat.com/show_bug.cgi?id=1082903#c8 Current versions in tree are not vulnerable. GLSA Vote: No |
From ${URL} : Martin Holst Swende discovered a flaw in the way mod_headers handled chunked requests. A remote attacker could use this flaw to bypass intended mod_headers restrictions, allowing them to send requests to applications that include headers that should have been removed by mod_headers. Discussion and a possible patch is available from the following thread: http://marc.info/?t=138219209900002&r=1&w=2 References: http://martin.swende.se/blog/HTTPChunked.html @maintainer(s): after the bump, in case we need to stabilize the package, please let us know if it is ready for the stabilization or not.