Use After Free 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-2088472
- published 26 Jul 2021
- disclosed 11 Jan 2017
Introduced: 11 Jan 2017
CVE-2017-2584 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.
arch/x86/kvm/emulate.c in the Linux kernel through 4.9.3 allows local users to obtain sensitive information from kernel memory or cause a denial of service (use-after-free) via a crafted application that leverages instruction emulation for fxrstor, fxsave, sgdt, and sidt.
References
- http://www.securityfocus.com/bid/95430
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=129a72a0d3c8e139a04512325384fe5ac119e74d
- https://bugzilla.redhat.com/show_bug.cgi?id=1413001
- https://github.com/torvalds/linux/commit/129a72a0d3c8e139a04512325384fe5ac119e74d
- https://access.redhat.com/security/cve/CVE-2017-2584
- http://www.debian.org/security/2017/dsa-3791
- http://www.openwall.com/lists/oss-security/2017/01/13/7
- https://access.redhat.com/errata/RHSA-2017:2077
- http://www.securitytracker.com/id/1037603
- https://usn.ubuntu.com/3754-1/