The parse_rock_ridge_inode_internal function in fs/isofs/rock.c in the Linux kernel before 3.18.2 does not validate a length value in the Extensions Reference (ER) System Use Field, which allows local users to obtain sensitive information from kernel memory via a crafted iso9660 image.

References

• https://nvd.nist.gov/vuln/detail/CVE-2014-9584
• torvalds/linux@4e20246
• https://bugzilla.redhat.com/show_bug.cgi?id=1180119
• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=4e2024624e678f0ebb916e6192bd23c1f9fdf696
• http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.html
• http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00020.html
• http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html
• http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00000.html
• http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00009.html
• http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00015.html
• http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html
• http://rhn.redhat.com/errata/RHSA-2015-0864.html
• http://rhn.redhat.com/errata/RHSA-2015-1137.html
• http://rhn.redhat.com/errata/RHSA-2015-1138.html
• http://www.debian.org/security/2015/dsa-3128
• http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.18.2
• http://www.mandriva.com/security/advisories?name=MDVSA-2015:058
• http://www.openwall.com/lists/oss-security/2015/01/09/4
• http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
• http://www.securityfocus.com/bid/71883
• http://www.ubuntu.com/usn/USN-2511-1
• http://www.ubuntu.com/usn/USN-2512-1
• http://www.ubuntu.com/usn/USN-2513-1
• http://www.ubuntu.com/usn/USN-2514-1
• http://www.ubuntu.com/usn/USN-2515-1
• http://www.ubuntu.com/usn/USN-2516-1
• http://www.ubuntu.com/usn/USN-2517-1
• http://www.ubuntu.com/usn/USN-2518-1
• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=4e2024624e678f0ebb916e6192bd23c1f9fdf696