NULL pointer dereference in Linux kernel - CVE-2014-8480
Published: November 10, 2014 / Updated: November 28, 2016
Vulnerability identifier: #VU90732
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-2014-8480
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 I() function in arch/x86/kvm/emulate.c. A local user can perform a denial of service (DoS) attack.
Affected software
Linux kernel
Fedora
kernel
Fedora
kernel
How to mitigate CVE-2014-8480
Install update from vendor's website.
Linux kernel - update to 3.18
kernel - addressed in versions 3.17.1-304.fc21, 3.17.2-300.fc21
kernel - addressed in versions 3.17.1-304.fc21, 3.17.2-300.fc21
External References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=3f6f1480d86bf9fc16c160d803ab1d006e3058d5
- http://thread.gmane.org/gmane.comp.emulators.kvm.devel/128427
- http://www.openwall.com/lists/oss-security/2014/10/23/7
- http://www.securityfocus.com/bid/70710
- https://bugzilla.redhat.com/show_bug.cgi?id=1156615
- https://github.com/torvalds/linux/commit/3f6f1480d86bf9fc16c160d803ab1d006e3058d5