Date: Tue, 09 Dec 2014 18:32:30 +0530 From: Huzaifa Sidhpurwala <huzaifas@...hat.com> To: oss-security@...ts.openwall.com Subject: Two rpm flaws Two flaws in RPM (actually one of them is in cpio, which is embedded into RPM) was found by Florian Weimer of Red Hat Product Security. Details as follows: CVE-2013-6435: 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. Reference: https://bugzilla.redhat.com/show_bug.cgi?id=1039811 CVE-2014-8118: It was found that RPM could encounter an integer overflow, leading to a stack-based 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. Reference: https://bugzilla.redhat.com/show_bug.cgi?id=1168715 -- Huzaifa Sidhpurwala / Red Hat Product Security Team
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