CVE-2014-7283
First published: Thu Oct 02 2014(Updated: )
A flaw was found in the way the xfs_da3_fixhashpath() function of the Linux kernel's XFS file system implementation ordered directory hashes under certain conditions. A local attacker could use this flaw to corrupt the file system by creating directories, potentially resulting in kernel panic. Upstream fix: <a href="https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c88547a8119e3b581318ab65e9b72f27f23e641d">https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c88547a8119e3b581318ab65e9b72f27f23e641d</a> Reproducer: <a href="http://oss.sgi.com/cgi-bin/gitweb.cgi?p=xfs/cmds/xfstests.git;a=blob;f=src/dirhash_collide.c;h=55cec872d5061ac2ca0f56d1f11e6bf349d5bb97;hb=947ee8bd4b59770534297572b14c695e9c6e001e">http://oss.sgi.com/cgi-bin/gitweb.cgi?p=xfs/cmds/xfstests.git;a=blob;f=src/dirhash_collide.c;h=55cec872d5061ac2ca0f56d1f11e6bf349d5bb97;hb=947ee8bd4b59770534297572b14c695e9c6e001e</a> References: <a href="http://seclists.org/oss-sec/2014/q4/28">http://seclists.org/oss-sec/2014/q4/28</a> <a href="http://marc.info/?l=linux-xfs&m=139590613002926&w=2">http://marc.info/?l=linux-xfs&m=139590613002926&w=2</a>
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux kernel | <3.14.2 | |
| Red Hat MRG Realtime | =2.0 | |
| 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;a=commit;h=c88547a8119e3b581318ab65e9b72f27f23e641d
- http://marc.info/?l=linux-xfs&m=139590613002926&w=2
- http://rhn.redhat.com/errata/RHSA-2014-1943.html
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.14.2
- http://www.openwall.com/lists/oss-security/2014/10/01/29
- http://www.securityfocus.com/bid/70261
- https://bugzilla.redhat.com/show_bug.cgi?id=1148777
- https://github.com/torvalds/linux/commit/c88547a8119e3b581318ab65e9b72f27f23e641d
- http://marc.info/?l=linux-xfs&m=139590613002926&w=2
- https://launchpad.net/bugs/cve/CVE-2014-7283
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c88547a8119e3b581318ab65e9b72f27f23e641d
- http://oss.sgi.com/cgi-bin/gitweb.cgi?p=xfs/cmds/xfstests.git;a=blob;f=src/dirhash_collide.c;h=55cec872d5061ac2ca0f56d1f11e6bf349d5bb97;hb=947ee8bd4b59770534297572b14c695e9c6e001e
- http://seclists.org/oss-sec/2014/q4/28
- https://rhn.redhat.com/errata/RHSA-2014-1943.html
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=c88547a8119e3b581318ab65e9b72f27f23e641d
- http://oss.sgi.com/cgi-bin/gitweb.cgi?p=xfs/cmds/xfstests.git;a=commitdiff;h=947ee8bd4b59770534297572b14c695e9c6e001e
- https://security-tracker.debian.org/tracker/CVE-2014-7283
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-7283
- https://nvd.nist.gov/vuln/detail/CVE-2014-7283
- https://ubuntu.com/security/CVE-2014-7283
Frequently Asked Questions
What is the severity of CVE-2014-7283?
CVE-2014-7283 is classified as a moderate severity vulnerability.
How do I fix CVE-2014-7283?
To fix CVE-2014-7283, you should update your Linux kernel to versions 3.14.2 or higher or apply relevant patches.
What are the potential impacts of CVE-2014-7283?
The potential impacts of CVE-2014-7283 include file system corruption that could lead to a kernel panic.
Which systems are affected by CVE-2014-7283?
CVE-2014-7283 affects the Linux kernel versions prior to 3.14.2 and specific versions of Red Hat MRG Realtime.
Who can exploit CVE-2014-7283?
A local attacker with sufficient permissions can exploit CVE-2014-7283 to create directories that corrupt the file system.
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