CVE-2015-8543

Description

The networking implementation in the Linux kernel through 4.3.3, as used in Android and other products, does not validate protocol identifiers for certain protocol families, which allows local users to cause a denial of service (NULL function pointer dereference and system crash) or possibly gain privileges by leveraging CLONE_NEWUSER support to execute a crafted SOCK_RAW application.

7.0

CVSS

Severity: High

CVSS 3.1 •

CVSS 2.0 •

EPSS 1.85% Top 20%

Vendor Advisory redhat.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory ubuntu.com Vendor Advisory debian.org Vendor Advisory ubuntu.com Vendor Advisory debian.org Vendor Advisory ubuntu.com Vendor Advisory opensuse.org Vendor Advisory kernel.org Vendor Advisory github.com

Affected: n/a n/a

References

Link	Tags
http://rhn.redhat.com/errata/RHSA-2016-0855.html	third party advisory vendor advisory
http://www.securitytracker.com/id/1034892	third party advisory vdb entry
http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html	third party advisory
http://www.ubuntu.com/usn/USN-2886-1	third party advisory vendor advisory
http://www.ubuntu.com/usn/USN-2890-3	third party advisory vendor advisory
http://rhn.redhat.com/errata/RHSA-2016-2584.html	third party advisory vendor advisory
http://rhn.redhat.com/errata/RHSA-2016-2574.html	third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00045.html	vendor advisory mailing list third party advisory
http://www.securityfocus.com/bid/79698	third party advisory vdb entry
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html	vendor advisory mailing list third party advisory
http://www.ubuntu.com/usn/USN-2890-2	third party advisory vendor advisory
https://github.com/torvalds/linux/commit/79462ad02e861803b3840cc782248c7359451cd9	vendor advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=79462ad02e861803b3840cc782248c7359451cd9	vendor advisory
http://www.debian.org/security/2015/dsa-3426	third party advisory vendor advisory
http://www.openwall.com/lists/oss-security/2015/12/09/5	third party advisory mailing list
http://www.ubuntu.com/usn/USN-2890-1	third party advisory vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1290475	third party advisory issue tracking
http://www.debian.org/security/2016/dsa-3434	third party advisory vendor advisory
http://www.ubuntu.com/usn/USN-2888-1	third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.html	vendor advisory mailing list third party advisory

Frequently Asked Questions

What is the severity of CVE-2015-8543?: CVE-2015-8543 has been scored as a high severity vulnerability.
How to fix CVE-2015-8543?: To fix CVE-2015-8543, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2015-8543 being actively exploited in the wild?: It is possible that CVE-2015-8543 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.