CVE-2016-0723
medium
CVSS v3
6.8
CVSS v2
5.6
VIR risk
6.8
Description
Race condition in the tty_ioctl function in drivers/tty/tty_io.c in the Linux kernel through 4.4.1 allows local users to obtain sensitive information from kernel memory or cause a denial of service (use-after-free and system crash) by making a TIOCGETD ioctl call during processing of a TIOCSETD ioctl call.
Predictions
Exploit likelihood
67%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2016-0723
Vendor advisory: secalert@redhat.com — http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5c17c861a357e9458001f021a7afa7aab9937439
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2016-0723.html
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | fixed | 4.3.3-6 |
| debian | bullseye | fixed | 4.3.3-6 |
| debian | forky | fixed | 4.3.3-6 |
| debian | sid | fixed | 4.3.3-6 |
| debian | trixie | fixed | 4.3.3-6 |
| linux-kernel | affected | |
References
- https://www.suse.com/security/cve/CVE-2016-0723.html
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5c17c861a357e9458001f021a7afa7aab9937439
- http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176464.html
- http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176484.html
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.html
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00015.html
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00045.html
- http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html
- http://source.android.com/security/bulletin/2016-07-01.html
- http://www.debian.org/security/2016/dsa-3448
- http://www.debian.org/security/2016/dsa-3503
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
- http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html
- http://www.securityfocus.com/bid/82950
- http://www.securitytracker.com/id/1035695
- http://www.ubuntu.com/usn/USN-2929-1
- http://www.ubuntu.com/usn/USN-2929-2
- http://www.ubuntu.com/usn/USN-2930-1
- http://www.ubuntu.com/usn/USN-2930-2
- http://www.ubuntu.com/usn/USN-2930-3
- http://www.ubuntu.com/usn/USN-2932-1
- http://www.ubuntu.com/usn/USN-2948-1
- http://www.ubuntu.com/usn/USN-2948-2
- http://www.ubuntu.com/usn/USN-2967-1
CWEs
CWE-200 CWE-362
Verify integrity in audit chain (admin only). AS-IS.