Integer overflow in RPM 4.12 and earlier allows remote attackers to execute arbitrary code via a crafted CPIO header in the payload section of an RPM file, which triggers a stack-based buffer overflow.
https://security.gentoo.org/glsa/201811-22
http://www.mandriva.com/security/advisories?name=MDVSA-2015:056
http://www.mandriva.com/security/advisories?name=MDVSA-2014:251
http://www.debian.org/security/2015/dsa-3129