RPM 4.4.x through 4.9.x, probably before 4.9.1.2, allows remote attackers to cause a denial of service (memory corruption) and possibly execute arbitrary code via an rpm package with crafted headers and offsets that are not properly handled when a package is queried or installed, related to (1) the regionSwab function, (2) the headerLoad function, and (3) multiple functions in rpmio/rpmpgp.c.
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10691
http://lists.opensuse.org/opensuse-security-announce/2011-11/msg00000.html
http://lists.opensuse.org/opensuse-security-announce/2011-11/msg00002.html
http://rpm.org/gitweb?p=rpm.git;a=commitdiff;h=11a7e5d95a8ca8c7d4eaff179094afd8bb74fc3f
http://rpm.org/gitweb?p=rpm.git;a=commitdiff;h=a48f0e20cbe2ababc88b2fc52fb7a281d6fc1656
http://rpm.org/wiki/Releases/4.9.1.2#Security
http://www.mandriva.com/security/advisories?name=MDVSA-2011:143
http://www.openwall.com/lists/oss-security/2011/09/27/3
http://www.redhat.com/support/errata/RHSA-2011-1349.html
http://www.ubuntu.com/usn/USN-1695-1