CVE-2015-8543: Null Pointer Dereference
First published: Wed Dec 09 2015(Updated: )
A NULL pointer dereference flaw was found in the way the Linux kernel's network subsystem handled socket creation with an invalid protocol identifier. A local user could use this flaw to crash the system.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel | <0:2.6.32-642.el6 | 0:2.6.32-642.el6 |
| redhat/kernel-rt | <0:3.10.0-514.rt56.420.el7 | 0:3.10.0-514.rt56.420.el7 |
| redhat/kernel | <0:3.10.0-514.el7 | 0:3.10.0-514.el7 |
| Linux Kernel | <3.2.75 | |
| Linux Kernel | >=3.3<3.4.111 | |
| Linux Kernel | >=3.5<3.10.95 | |
| Linux Kernel | >=3.11<3.12.52 | |
| Linux Kernel | >=3.13<3.14.59 | |
| Linux Kernel | >=3.15<3.16.35 | |
| Linux Kernel | >=3.17<3.18.26 | |
| Linux Kernel | >=3.19<4.1.16 | |
| Linux Kernel | >=4.2<4.3.4 | |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.123-1 6.1.128-1 6.12.12-1 6.12.13-1 |
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Reference Links
- https://www.cve.org/CVERecord?id=CVE-2015-8543 https://nvd.nist.gov/vuln/detail/CVE-2015-8543
- https://bugzilla.redhat.com/show_bug.cgi?id=1290475
- https://access.redhat.com/errata/RHSA-2016:0855
- https://access.redhat.com/errata/RHSA-2016:2584
- https://access.redhat.com/errata/RHSA-2016:2574
- https://access.redhat.com/security/cve/CVE-2015-8543
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=79462ad02e861803b3840cc782248c7359451cd9
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.html
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00045.html
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.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/2015/dsa-3426
- http://www.debian.org/security/2016/dsa-3434
- http://www.openwall.com/lists/oss-security/2015/12/09/5
- http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
- http://www.securityfocus.com/bid/79698
- http://www.securitytracker.com/id/1034892
- http://www.ubuntu.com/usn/USN-2886-1
- http://www.ubuntu.com/usn/USN-2888-1
- http://www.ubuntu.com/usn/USN-2890-1
- http://www.ubuntu.com/usn/USN-2890-2
- http://www.ubuntu.com/usn/USN-2890-3
- https://github.com/torvalds/linux/commit/79462ad02e861803b3840cc782248c7359451cd9
- https://launchpad.net/bugs/cve/CVE-2015-8543
- http://seclists.org/oss-sec/2015/q4/458
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1290477
- http://seclists.org/oss-sec/2015/q4/473
- https://git.kernel.org/cgit/linux/kernel/git/davem/net.git/commit/?id=79462ad02e861803b3840cc782248c7359451cd9
- http://seclists.org/oss-sec/2015/q4/456
- 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://www.openwall.com/lists/oss-security/2015/12/09/3
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=79462ad02e861803b3840cc782248c7359451cd9
- https://security-tracker.debian.org/tracker/CVE-2015-8543
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8543
- https://nvd.nist.gov/vuln/detail/CVE-2015-8543
- https://ubuntu.com/security/CVE-2015-8543
Parent vulnerabilities
(Appears in the following advisories)
Frequently Asked Questions
What is CVE-2015-8543?
CVE-2015-8543 is a vulnerability in the Linux kernel's network subsystem that allows local users to cause a denial of service or possibly gain privileges.
Which products are affected by CVE-2015-8543?
The Linux kernel through version 4.3.3, as used in Android and other products, is affected.
How severe is CVE-2015-8543?
CVE-2015-8543 has a severity rating of medium.
How can CVE-2015-8543 be exploited?
CVE-2015-8543 can be exploited by local users to cause a denial of service or possibly gain privileges.
Is there a fix available for CVE-2015-8543?
Yes, the recommended remedy for CVE-2015-8543 is to update to Linux kernel version 4.4~.
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