Use After Free Affecting kernel-bootwrapper package, versions <0:3.10.0-514.el7
Threat Intelligence
EPSS
0.04% (6th
percentile)
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Test your applications- Snyk ID SNYK-RHEL7-KERNELBOOTWRAPPER-4614657
- published 26 Jul 2021
- disclosed 17 Apr 2016
Introduced: 17 Apr 2016
CVE-2016-4794 Open this link in a new tabHow to fix?
Upgrade RHEL:7 kernel-bootwrapper to version 0:3.10.0-514.el7 or higher.
This issue was patched in RHSA-2016:2574.
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 mm/percpu.c in the Linux kernel through 4.6 allows local users to cause a denial of service (BUG) or possibly have unspecified other impact via crafted use of the mmap and bpf system calls.
References
- http://www.securityfocus.com/bid/90625
- https://bugzilla.redhat.com/show_bug.cgi?id=1335889
- https://source.android.com/security/bulletin/2016-12-01.html
- https://access.redhat.com/security/cve/CVE-2016-4794
- https://lkml.org/lkml/2016/4/17/125
- http://www.openwall.com/lists/oss-security/2016/05/12/6
- http://rhn.redhat.com/errata/RHSA-2016-2574.html
- http://rhn.redhat.com/errata/RHSA-2016-2584.html
- https://access.redhat.com/errata/RHSA-2016:2574
- http://www.ubuntu.com/usn/USN-3053-1
- http://www.ubuntu.com/usn/USN-3054-1
- http://www.ubuntu.com/usn/USN-3055-1
- http://www.ubuntu.com/usn/USN-3056-1
- http://www.ubuntu.com/usn/USN-3057-1
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