Race Condition Affecting kernel-rt-trace 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-KERNELRTTRACE-1970073
- published26 Jul 2021
- disclosed19 Jan 2016
Introduced: 19 Jan 2016
CVE-2016-7916 (opens in a new tab)How to fix?
There is no fixed version for Centos:7 kernel-rt-trace.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-rt-trace package and not the kernel-rt-trace package as distributed by Centos.
See How to fix? for Centos:7 relevant fixed versions and status.
Race condition in the environ_read function in fs/proc/base.c in the Linux kernel before 4.5.4 allows local users to obtain sensitive information from kernel memory by reading a /proc/*/environ file during a process-setup time interval in which environment-variable copying is incomplete.
References
- http://www.securityfocus.com/bid/94138
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8148a73c9901a8794a50f950083c00ccf97d43b3
- https://bugzilla.kernel.org/show_bug.cgi?id=116461
- https://forums.grsecurity.net/viewtopic.php?f=3&t=4363
- https://github.com/torvalds/linux/commit/8148a73c9901a8794a50f950083c00ccf97d43b3
- http://source.android.com/security/bulletin/2016-11-01.html
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.4
- https://access.redhat.com/security/cve/CVE-2016-7916
- http://www.ubuntu.com/usn/USN-3159-1
- http://www.ubuntu.com/usn/USN-3159-2