Improper Initialization Affecting kernel-rt-kvm package, versions <0:3.10.0-693.rt56.617.el7
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Test your applications- Snyk ID SNYK-CENTOS7-KERNELRTKVM-2089344
- published 26 Jul 2021
- disclosed 12 May 2017
Introduced: 12 May 2017
CVE-2017-7495 Open this link in a new tabHow to fix?
Upgrade Centos:7 kernel-rt-kvm to version 0:3.10.0-693.rt56.617.el7 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-rt-kvm package and not the kernel-rt-kvm package as distributed by Centos.
See How to fix? for Centos:7 relevant fixed versions and status.
fs/ext4/inode.c in the Linux kernel before 4.6.2, when ext4 data=ordered mode is used, mishandles a needs-flushing-before-commit list, which allows local users to obtain sensitive information from other users' files in opportunistic circumstances by waiting for a hardware reset, creating a new file, making write system calls, and reading this file.
References
- http://www.securityfocus.com/bid/98491
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=06bd3c36a733ac27962fea7d6f47168841376824
- https://bugzilla.redhat.com/show_bug.cgi?id=1450261
- https://github.com/torvalds/linux/commit/06bd3c36a733ac27962fea7d6f47168841376824
- https://source.android.com/security/bulletin/2017-09-01
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.2
- http://www.openwall.com/lists/oss-security/2017/05/15/2
- https://access.redhat.com/security/cve/CVE-2017-7495
- https://access.redhat.com/errata/RHSA-2017:2077
- http://seclists.org/oss-sec/2017/q2/259
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=06bd3c36a733ac27962fea7d6f47168841376824