CVE-2014-9585
low
CVSS v3
—
CVSS v2
2.1
VIR risk
2.1
Description
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.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2014-9585
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| debian | bookworm | fixed | 3.16.7-ckt4-1 |
| debian | bullseye | fixed | 3.16.7-ckt4-1 |
| debian | forky | fixed | 3.16.7-ckt4-1 |
| debian | sid | fixed | 3.16.7-ckt4-1 |
| debian | trixie | fixed | 3.16.7-ckt4-1 |
| debian | 7.0 | affected | |
| debian | 8.0 | affected | |
| fedora | 21 | affected | |
| suse | 13.1 | affected | |
| suse | 12 | affected | |
| suse | 11 | affected | |
| rhel | 6.0 | affected | |
| rhel | 7.0 | affected | |
| rhel | 6.6 | affected | |
| ubuntu | 12.04 | affected | |
| ubuntu | 14.04 | affected | |
| ubuntu | 14.10 | affected | |
| linux-kernel | affected | |
References
- http://git.kernel.org/?p=linux/kernel/git/luto/linux.git%3Ba=commit%3Bh=bc3b94c31d65e761ddfe150d02932c65971b74e2
- http://git.kernel.org/?p=linux/kernel/git/tip/tip.git%3Ba=commit%3Bh=fbe1bf140671619508dfa575d74a185ae53c5dbb
- http://lists.fedoraproject.org/pipermail/package-announce/2015-January/148480.html
- http://lists.opensuse.org/opensuse-security-announce/2015-01/msg00035.html
- http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.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://rhn.redhat.com/errata/RHSA-2015-1081.html
- http://rhn.redhat.com/errata/RHSA-2015-1778.html
- http://rhn.redhat.com/errata/RHSA-2015-1787.html
- http://v0ids3curity.blogspot.in/2014/12/return-to-vdso-using-elf-auxiliary.html
- http://www.debian.org/security/2015/dsa-3170
- http://www.mandriva.com/security/advisories?name=MDVSA-2015:058
- http://www.openwall.com/lists/oss-security/2014/12/09/10
- http://www.openwall.com/lists/oss-security/2015/01/09/8
- http://www.securityfocus.com/bid/71990
- 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
- https://security-tracker.debian.org/tracker/CVE-2014-9585
Verify integrity in audit chain (admin only). AS-IS.