NULL pointer dereference in Linux kernel - CVE-2015-4692
Published: July 27, 2015 / Updated: September 22, 2017
Vulnerability identifier: #VU90728
CSH Severity: Low
CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2015-4692
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the arch/x86/kvm/lapic.h. A local user can perform a denial of service (DoS) attack.
Affected software
Linux kernel
Fedora
kernel
Fedora
kernel
How to mitigate CVE-2015-4692
Install update from vendor's website.
kernel - addressed in versions 4.0.6-200.fc21, 4.0.6-300.fc22
External References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ce40cd3fc7fa40a6119e5fe6c0f2bc0eb4541009
- http://lists.fedoraproject.org/pipermail/package-announce/2015-June/160829.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-June/161144.html
- http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00049.html
- http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00011.html
- http://www.debian.org/security/2015/dsa-3329
- http://www.openwall.com/lists/oss-security/2015/06/21/1
- http://www.securityfocus.com/bid/75142
- http://www.securitytracker.com/id/1032798
- http://www.ubuntu.com/usn/USN-2680-1
- http://www.ubuntu.com/usn/USN-2681-1
- http://www.ubuntu.com/usn/USN-2682-1
- http://www.ubuntu.com/usn/USN-2683-1
- http://www.ubuntu.com/usn/USN-2684-1
- https://bugzilla.redhat.com/show_bug.cgi?id=1230770
- https://github.com/torvalds/linux/commit/ce40cd3fc7fa40a6119e5fe6c0f2bc0eb4541009