Out-of-Bounds Affecting kernel-debug-devel package, versions <0:3.10.0-862.el7
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Test your applications- Snyk ID SNYK-RHEL7-KERNELDEBUGDEVEL-4798340
- published 26 Jul 2021
- disclosed 5 Dec 2017
Introduced: 5 Dec 2017
CVE-2017-15126 Open this link in a new tabHow to fix?
Upgrade RHEL:7 kernel-debug-devel to version 0:3.10.0-862.el7 or higher.
This issue was patched in RHSA-2018:1062.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-debug-devel package and not the kernel-debug-devel package as distributed by RHEL.
See How to fix? for RHEL:7 relevant fixed versions and status.
A use-after-free flaw was found in fs/userfaultfd.c in the Linux kernel before 4.13.6. The issue is related to the handling of fork failure when dealing with event messages. Failure to fork correctly can lead to a situation where a fork event will be removed from an already freed list of events with userfaultfd_ctx_put().
References
- http://www.securityfocus.com/bid/102516
- https://access.redhat.com/security/cve/CVE-2017-15126
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=384632e67e0829deb8015ee6ad916b180049d252
- https://bugzilla.redhat.com/show_bug.cgi?id=1523481
- https://github.com/torvalds/linux/commit/384632e67e0829deb8015ee6ad916b180049d252
- https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.6
- https://access.redhat.com/errata/RHSA-2018:1062