CVE-2013-4312: Buffer Overflow
First published: Tue Jan 12 2016(Updated: )
It was found that process could allocate and accumulate far more FDs than the process' limit by sending them over a unix socket then closing them to keep the process' fd count low, which could result into a local DoS against kernel by depleting all available memory. Upstream patch: <a href="https://git.kernel.org/cgit/linux/kernel/git/davem/net.git/commit/?id=712f4aad406b">https://git.kernel.org/cgit/linux/kernel/git/davem/net.git/commit/?id=712f4aad406b</a> Discussion: <a href="https://lkml.org/lkml/2015/12/28/155">https://lkml.org/lkml/2015/12/28/155</a>
Credit: secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Oracle Linux | =5.0 | |
| Oracle Linux | =6 | |
| Oracle Linux | =7 | |
| Linux Linux kernel | <=4.4 | |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.115-1 6.1.112-1 6.11.7-1 6.11.9-1 |
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Reference Links
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=712f4aad406bb1ed67f3f98d04c044191f0ff593
- http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176464.html
- http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176484.html
- http://rhn.redhat.com/errata/RHSA-2016-0855.html
- http://rhn.redhat.com/errata/RHSA-2016-2574.html
- http://rhn.redhat.com/errata/RHSA-2016-2584.html
- http://www.debian.org/security/2016/dsa-3448
- http://www.debian.org/security/2016/dsa-3503
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.1
- http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
- http://www.securityfocus.com/bid/82986
- http://www.ubuntu.com/usn/USN-2929-1
- http://www.ubuntu.com/usn/USN-2929-2
- http://www.ubuntu.com/usn/USN-2931-1
- http://www.ubuntu.com/usn/USN-2932-1
- http://www.ubuntu.com/usn/USN-2967-1
- http://www.ubuntu.com/usn/USN-2967-2
- https://bugzilla.redhat.com/show_bug.cgi?id=1297813
- https://github.com/torvalds/linux/commit/712f4aad406bb1ed67f3f98d04c044191f0ff593
- https://security-tracker.debian.org/tracker/CVE-2013-4312
- https://launchpad.net/bugs/cve/CVE-2013-4312
- https://git.kernel.org/cgit/linux/kernel/git/davem/net.git/commit/?id=712f4aad406b
- https://lkml.org/lkml/2015/12/28/155
- https://www.debian.org/security/2016/dsa-3448
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1300216
- https://access.redhat.com/support/policy/updates/errata/
- https://rhn.redhat.com/errata/RHSA-2016-0855.html
- https://rhn.redhat.com/errata/RHSA-2016-2574.html
- https://rhn.redhat.com/errata/RHSA-2016-2584.html
- https://git.kernel.org/linus/712f4aad406bb1ed67f3f98d04c044191f0ff593
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-4312
- https://nvd.nist.gov/vuln/detail/CVE-2013-4312
- https://ubuntu.com/security/CVE-2013-4312
Frequently Asked Questions
What is CVE-2013-4312?
CVE-2013-4312 is a vulnerability in the Linux kernel that allows local users to bypass file-descriptor limits and cause a denial of service by sending each descriptor over a UNIX socket before closing it.
How can this vulnerability be exploited?
To exploit CVE-2013-4312, a local user would need to send each file descriptor over a UNIX socket before closing it.
What is the severity of CVE-2013-4312?
CVE-2013-4312 has a severity level of medium.
How can I fix CVE-2013-4312?
To fix CVE-2013-4312, it is recommended to update the Linux kernel to version 4.5~ or later.
Where can I find more information about CVE-2013-4312?
More information about CVE-2013-4312 can be found at the following references: [1] [2] [3].
- collector/nvd-index
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- alias/CVE-2013-4312
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- vendor/linux
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