From ${URL} : It was reported [1] that if Content-Type header value is empty, httpd with mod_cache enabled will segfault. Upstream patch: http://svn.apache.org/viewvc?view=revision&revision=1624234 [1]: https://issues.apache.org/bugzilla/show_bug.cgi?id=56924 @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.
CVE-2014-3581 (http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-3581): The cache_merge_headers_out function in modules/cache/cache_util.c in the mod_cache module in the Apache HTTP Server before 2.4.11 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via an empty HTTP Content-Type header.
https://bugzilla.redhat.com/show_bug.cgi?id=1149709#c4 Per that, 2.2.x is not affected and neither the current 2.4 versions in the tree
Added to existing GLSA.
This issue was resolved and addressed in GLSA 201610-02 at https://security.gentoo.org/glsa/201610-02 by GLSA coordinator Kristian Fiskerstrand (K_F).