Race Condition Affecting kernel-bootwrapper package, versions <0:3.10.0-693.el7
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Test your applications- Snyk ID SNYK-RHEL7-KERNELBOOTWRAPPER-5182663
- published 26 Jul 2021
- disclosed 31 Mar 2016
Introduced: 31 Mar 2016
CVE-2015-8839 Open this link in a new tabHow to fix?
Upgrade RHEL:7 kernel-bootwrapper to version 0:3.10.0-693.el7 or higher.
This issue was patched in RHSA-2017:1842.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-bootwrapper package and not the kernel-bootwrapper package as distributed by RHEL.
See How to fix? for RHEL:7 relevant fixed versions and status.
Multiple race conditions in the ext4 filesystem implementation in the Linux kernel before 4.5 allow local users to cause a denial of service (disk corruption) by writing to a page that is associated with a different user's file after unsynchronized hole punching and page-fault handling.
References
- http://www.securityfocus.com/bid/85798
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ea3d7209ca01da209cda6f0dea8be9cc4b7a933b
- https://bugzilla.redhat.com/show_bug.cgi?id=1323577
- https://github.com/torvalds/linux/commit/ea3d7209ca01da209cda6f0dea8be9cc4b7a933b
- https://access.redhat.com/security/cve/CVE-2015-8839
- https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html
- https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html
- http://www.openwall.com/lists/oss-security/2016/04/01/4
- https://access.redhat.com/errata/RHSA-2017:1842
- http://www.securitytracker.com/id/1035455
- http://www.ubuntu.com/usn/USN-3005-1
- http://www.ubuntu.com/usn/USN-3006-1
- http://www.ubuntu.com/usn/USN-3007-1