Information Exposure Affecting kernel-rt-debug package, versions *
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-CENTOS7-KERNELRTDEBUG-1971684
- published26 Jul 2021
- disclosed22 Nov 2016
Introduced: 22 Nov 2016
CVE-2016-9756 (opens in a new tab)How to fix?
There is no fixed version for Centos:7 kernel-rt-debug.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-rt-debug package and not the kernel-rt-debug package as distributed by Centos.
See How to fix? for Centos:7 relevant fixed versions and status.
arch/x86/kvm/emulate.c in the Linux kernel before 4.8.12 does not properly initialize Code Segment (CS) in certain error cases, which allows local users to obtain sensitive information from kernel stack memory via a crafted application.
References
- http://www.securityfocus.com/bid/94615
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2117d5398c81554fbf803f5fd1dc55eb78216c0c
- https://bugzilla.redhat.com/show_bug.cgi?id=1400468
- https://github.com/torvalds/linux/commit/2117d5398c81554fbf803f5fd1dc55eb78216c0c
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.12
- https://access.redhat.com/security/cve/CVE-2016-9756
- http://www.openwall.com/lists/oss-security/2016/12/01/1
- http://lists.opensuse.org/opensuse-security-announce/2017-01/msg00000.html