CVE-2014-9585

The vdso_addr function in arch/x86/vdso/vma.c in the Linux kernel through 3.18.2 does not properly choose memory locations for the vDSO area, which makes it easier for local users to bypass the ASLR protection mechanism by guessing a location at the end of a PMD.

🔗 References (48)

• cve@mitrehttp://git.kernel.org/?p=linux/kernel/git/luto/linux.git%3Ba=commit%3Bh=bc3b94c31d65e761ddfe150d02932c65971b74e2
• cve@mitrehttp://git.kernel.org/?p=linux/kernel/git/tip/tip.git%3Ba=commit%3Bh=fbe1bf140671619508dfa575d74a185ae53c5dbb
• cve@mitrehttp://lists.fedoraproject.org/pipermail/package-announce/2015-January/148480.html
• cve@mitrehttp://lists.opensuse.org/opensuse-security-announce/2015-01/msg00035.html
• cve@mitrehttp://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.html
• cve@mitrehttp://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html
• cve@mitrehttp://lists.opensuse.org/opensuse-security-announce/2015-04/msg00000.html
• cve@mitrehttp://lists.opensuse.org/opensuse-security-announce/2015-04/msg00009.html
• cve@mitrehttp://lists.opensuse.org/opensuse-security-announce/2015-04/msg00015.html
• cve@mitrehttp://rhn.redhat.com/errata/RHSA-2015-1081.html
• cve@mitrehttp://rhn.redhat.com/errata/RHSA-2015-1778.html
• cve@mitrehttp://rhn.redhat.com/errata/RHSA-2015-1787.html
• cve@mitrehttp://v0ids3curity.blogspot.in/2014/12/return-to-vdso-using-elf-auxiliary.html
• cve@mitrehttp://www.debian.org/security/2015/dsa-3170
• cve@mitrehttp://www.mandriva.com/security/advisories?name=MDVSA-2015:058