Race Condition Affecting kernel-rt package, versions <0:3.10.0-957.rt56.910.el7
Threat Intelligence
Exploit Maturity
Mature
EPSS
0.08% (38th
percentile)
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Test your applications- Snyk ID SNYK-CENTOS7-KERNELRT-2110790
- published 26 Jul 2021
- disclosed 10 Feb 2017
Introduced: 10 Feb 2017
CVE-2017-10661 Open this link in a new tabHow to fix?
Upgrade Centos:7 kernel-rt to version 0:3.10.0-957.rt56.910.el7 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-rt package and not the kernel-rt package as distributed by Centos.
See How to fix? for Centos:7 relevant fixed versions and status.
Race condition in fs/timerfd.c in the Linux kernel before 4.10.15 allows local users to gain privileges or cause a denial of service (list corruption or use-after-free) via simultaneous file-descriptor operations that leverage improper might_cancel queueing.
References
- http://www.securityfocus.com/bid/100215
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=1e38da300e1e395a15048b0af1e5305bd91402f6
- https://bugzilla.redhat.com/show_bug.cgi?id=1481136
- https://github.com/torvalds/linux/commit/1e38da300e1e395a15048b0af1e5305bd91402f6
- https://source.android.com/security/bulletin/2017-08-01
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.10.15
- https://access.redhat.com/security/cve/CVE-2017-10661
- http://www.debian.org/security/2017/dsa-3981
- https://www.exploit-db.com/exploits/43345/
- https://access.redhat.com/errata/RHSA-2018:3096
- https://www.exploit-db.com/exploits/43345
CVSS Scores
version 3.1