CVE-2016-9685
First published: Mon Nov 21 2016(Updated: )
A flaw was found in the Linux kernels implementation of XFS file attributes. Two memory leaks were detected in xfs_attr_shortform_list and xfs_attr3_leaf_list_int when running a docker container backed by xfs/overlay2. A dedicated attacker could possible exhaust all memory and create a denial of service situation. Product bug: <a class="bz_bug_link bz_secure " title="" href="show_bug.cgi?id=1391223">https://bugzilla.redhat.com/show_bug.cgi?id=1391223</a> OSS-Security post: <a href="http://seclists.org/oss-sec/2016/q4/544">http://seclists.org/oss-sec/2016/q4/544</a>
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | <=4.5.0 | |
| debian/linux | 5.10.223-1 5.10.234-1 6.1.123-1 6.1.128-1 6.12.12-1 6.12.17-1 |
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Reference Links
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2e83b79b2d6c78bf1b4aa227938a214dcbddc83f
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.1
- http://www.openwall.com/lists/oss-security/2016/11/30/1
- http://www.securityfocus.com/bid/94593
- https://access.redhat.com/errata/RHSA-2017:1842
- https://access.redhat.com/errata/RHSA-2017:2077
- https://access.redhat.com/errata/RHSA-2017:2669
- https://bugzilla.redhat.com/show_bug.cgi?id=1396941
- https://github.com/torvalds/linux/commit/2e83b79b2d6c78bf1b4aa227938a214dcbddc83f
- https://launchpad.net/bugs/cve/CVE-2016-9685
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1391223
- http://seclists.org/oss-sec/2016/q4/544
- http://seclists.org/oss-sec/2016/q4/545
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1400368
- https://access.redhat.com/support/policy/updates/errata/
- https://git.kernel.org/linus/2e83b79b2d6c78bf1b4aa227938a214dcbddc83f
- https://security-tracker.debian.org/tracker/CVE-2016-9685
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-9685
- https://nvd.nist.gov/vuln/detail/CVE-2016-9685
- https://ubuntu.com/security/CVE-2016-9685
Frequently Asked Questions
What is the vulnerability CVE-2016-9685?
Multiple memory leaks in error paths in fs/xfs/xfs_attr_list.c in the Linux kernel before 4.5.1 allow local users to cause a denial of service (memory consumption) via crafted XFS filesystem operations.
Which software versions are affected by CVE-2016-9685?
The vulnerability affects Linux kernel versions before 4.5.1.
What is the severity of CVE-2016-9685?
The severity of CVE-2016-9685 is low.
How can I fix CVE-2016-9685?
To fix CVE-2016-9685, update your Linux kernel to version 4.5.1 or later.
Where can I find more information about CVE-2016-9685?
You can find more information about CVE-2016-9685 at the following references: [Link 1](http://www.openwall.com/lists/oss-security/2016/11/30/1), [Link 2](http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2e83b79b2d6c78bf1b4aa227938a214dcbddc83f), [Link 3](http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.1).
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