CVE-2014-3631: Null Pointer Dereference
First published: Wed Sep 10 2014(Updated: )
A flaw was found in the way the termination condition in the associative array garbage collection functionality was handled when used from the keys subsystem. A local unprivileged user could use this flaw to crash the system. Introduced by: <a href="http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b2a4df200d570b2c33a57e1ebfa5896e4bc81b69">http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b2a4df200d570b2c33a57e1ebfa5896e4bc81b69</a>
Credit: secalert@redhat.com secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | >=3.13<3.14.19 | |
| Linux Kernel | >=3.15<3.16.3 | |
| Linux Kernel | <=3.16.2 | |
| Linux Kernel | =3.16.0 | |
| Linux Kernel | =3.16.1 | |
| debian/linux | 5.10.223-1 5.10.234-1 6.1.123-1 6.1.128-1 6.12.17-1 |
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Reference Links
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=95389b08d93d5c06ec63ab49bd732b0069b7c35e
- http://osvdb.org/show/osvdb/111298
- http://www.exploit-db.com/exploits/36268
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.16.3
- http://www.securityfocus.com/bid/70095
- http://www.ubuntu.com/usn/USN-2378-1
- http://www.ubuntu.com/usn/USN-2379-1
- https://bugzilla.redhat.com/show_bug.cgi?id=1140325
- https://github.com/torvalds/linux/commit/95389b08d93d5c06ec63ab49bd732b0069b7c35e
- https://launchpad.net/bugs/cve/CVE-2014-3631
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b2a4df200d570b2c33a57e1ebfa5896e4bc81b69
- https://bugzilla.redhat.com/show_bug.cgi/attachment.cgi?id=936266
- https://bugzilla.redhat.com/show_bug.cgi/attachment.cgi?id=936266&action=edit
- https://lkml.org/lkml/2014/9/10/788
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=95389b08d93d5c06ec63ab49bd732b0069b7c35e
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1154979
- https://rhn.redhat.com/errata/RHSA-2014-1971.html
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b2a4df200d570b2c33a57e1ebfa5896e4bc81b69
- https://security-tracker.debian.org/tracker/CVE-2014-3631
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-3631
- https://nvd.nist.gov/vuln/detail/CVE-2014-3631
- https://ubuntu.com/security/CVE-2014-3631
Frequently Asked Questions
What is the severity of CVE-2014-3631?
CVE-2014-3631 has a severity level that can lead to a system crash when exploited.
How do I fix CVE-2014-3631?
To fix CVE-2014-3631, update your Linux kernel to version 3.16.4 or later.
Which versions of Linux are affected by CVE-2014-3631?
CVE-2014-3631 affects Linux kernel versions from 3.13 to 3.16.3.
Can CVE-2014-3631 be exploited by a remote attacker?
No, CVE-2014-3631 can only be exploited by a local unprivileged user on the system.
What type of flaw is described in CVE-2014-3631?
CVE-2014-3631 involves a flaw in the garbage collection functionality for associative arrays.
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