CVE-2015-2666 Information

Description

Stack-based buffer overflow in the get_matching_model_microcode function in arch/x86/kernel/cpu/microcode/intel_early.c in the Linux kernel before 4.0 allows context-dependent attackers to gain privileges by constructing a crafted microcode header and leveraging root privileges for write access to the initrd.

Reference

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=f84598bd7c851f8b0bf8cd0d7c3be0d73c432ff4 http://lists.fedoraproject.org/pipermail/package-announce/2015-March/153329.html http://rhn.redhat.com/errata/RHSA-2015-1534.html http://www.openwall.com/lists/oss-security/2015/03/20/18 http://www.securitytracker.com/id/1032414 https://bugzilla.redhat.com/show_bug.cgi?id=1204722 https://github.com/torvalds/linux/commit/f84598bd7c851f8b0bf8cd0d7c3be0d73c432ff4