NULL Pointer Dereference Affecting kernel-rt-kvm package, versions <0:3.10.0-693.17.1.rt56.636.el7
Threat Intelligence
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk ID SNYK-CENTOS7-KERNELRTKVM-2095918
- published 26 Jul 2021
- disclosed 2 Nov 2017
Introduced: 2 Nov 2017
CVE-2017-12193 Open this link in a new tabHow to fix?
Upgrade Centos:7 kernel-rt-kvm to version 0:3.10.0-693.17.1.rt56.636.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.
The assoc_array_insert_into_terminal_node function in lib/assoc_array.c in the Linux kernel before 4.13.11 mishandles node splitting, which allows local users to cause a denial of service (NULL pointer dereference and panic) via a crafted application, as demonstrated by the keyring key type, and key addition and link creation operations.
References
- http://www.securityfocus.com/bid/101678
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ea6789980fdaa610d7eb63602c746bf6ec70cd2b
- https://bugzilla.redhat.com/show_bug.cgi?id=1501215
- https://github.com/torvalds/linux/commit/ea6789980fdaa610d7eb63602c746bf6ec70cd2b
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.11
- https://access.redhat.com/security/cve/CVE-2017-12193
- https://access.redhat.com/errata/RHSA-2018:0152
- https://usn.ubuntu.com/3698-1/
- https://usn.ubuntu.com/3698-2/