NULL Pointer Dereference Affecting kernel-bootwrapper package, versions <0:3.10.0-229.el7
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Test your applications- Snyk ID SNYK-RHEL7-KERNELBOOTWRAPPER-4512661
- published 26 Jul 2021
- disclosed 20 Dec 2013
Introduced: 20 Dec 2013
CVE-2014-8173 Open this link in a new tabHow to fix?
Upgrade RHEL:7 kernel-bootwrapper to version 0:3.10.0-229.el7 or higher.
This issue was patched in RHSA-2015:0290.
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.
The pmd_none_or_trans_huge_or_clear_bad function in include/asm-generic/pgtable.h in the Linux kernel before 3.13 on NUMA systems does not properly determine whether a Page Middle Directory (PMD) entry is a transparent huge-table entry, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via a crafted MADV_WILLNEED madvise system call that leverages the absence of a page-table lock.
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=ee53664bda169f519ce3c6a22d378f0b946c8178
- https://bugzilla.redhat.com/show_bug.cgi?id=1198457
- https://github.com/torvalds/linux/commit/ee53664bda169f519ce3c6a22d378f0b946c8178
- https://access.redhat.com/security/cve/CVE-2014-8173
- http://rhn.redhat.com/errata/RHSA-2015-0290.html
- http://rhn.redhat.com/errata/RHSA-2015-0694.html
- https://access.redhat.com/errata/RHSA-2015:0290
- http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00009.html
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=ee53664bda169f519ce3c6a22d378f0b946c8178