CVE-2014-8118

It was found that RPM wrote file contents to the target installation directory under a temporary name, and verified its cryptographic signature only after the temporary file has been written completely. Under certain conditions, the system interprets the unverified temporary file contents and extracts commands from it. This could allow an attacker to modify signed RPM files in such a way that they would execute code chosen by the attacker during package installation (CVE-2013-6435).

It was found that RPM could encounter an integer overflow, leading to a stack-based buffer overflow, while parsing a crafted CPIO header in the payload section of an RPM file. This could allow an attacker to modify signed RPM files in such a way that they would execute code chosen by the attacker during package installation (CVE-2014-8118).

All of those fixes were already backported in Mageia but for :

• Fix out-of-bounds read on signature checking of malformed package (RhBug:1373107)

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.

Florian Weimer discovered that RPM incorrectly handled temporary files. A local attacker could use this issue to execute arbitrary code. (CVE-2013-6435)

Florian Weimer discovered that RPM incorrectly handled certain CPIO headers. If a user or automated system were tricked into installing a malicious package file, a remote attacker could use this issue to cause RPM to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2014-8118)