Use After Free Affecting kernel-bootwrapper package, versions <0:3.10.0-514.21.1.el7
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Test your applications- Snyk ID SNYK-RHEL7-KERNELBOOTWRAPPER-4750687
- published 26 Jul 2021
- disclosed 4 Aug 2016
Introduced: 4 Aug 2016
CVE-2016-7910 Open this link in a new tabHow to fix?
Upgrade RHEL:7 kernel-bootwrapper to version 0:3.10.0-514.21.1.el7 or higher.
This issue was patched in RHSA-2017:1308.
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.
Use-after-free vulnerability in the disk_seqf_stop function in block/genhd.c in the Linux kernel before 4.7.1 allows local users to gain privileges by leveraging the execution of a certain stop operation even if the corresponding start operation had failed.
References
- http://www.securityfocus.com/bid/94135
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=77da160530dd1dc94f6ae15a981f24e5f0021e84
- https://github.com/torvalds/linux/commit/77da160530dd1dc94f6ae15a981f24e5f0021e84
- http://source.android.com/security/bulletin/2016-11-01.html
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.7.1
- https://access.redhat.com/security/cve/CVE-2016-7910
- https://access.redhat.com/errata/RHSA-2017:1308