Divide By Zero Affecting kernel-kdump package, versions <0:3.10.0-693.5.2.el7
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-CENTOS7-KERNELKDUMP-2092213
- published26 Jul 2021
- disclosed1 Sept 2017
Introduced: 1 Sep 2017
CVE-2017-14106 (opens in a new tab)How to fix?
Upgrade Centos:7 kernel-kdump to version 0:3.10.0-693.5.2.el7 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-kdump package and not the kernel-kdump package as distributed by Centos.
See How to fix? for Centos:7 relevant fixed versions and status.
The tcp_disconnect function in net/ipv4/tcp.c in the Linux kernel before 4.12 allows local users to cause a denial of service (__tcp_select_window divide-by-zero error and system crash) by triggering a disconnect within a certain tcp_recvmsg code path.
References
- http://www.securityfocus.com/bid/100878
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=499350a5a6e7512d9ed369ed63a4244b6536f4f8
- https://github.com/torvalds/linux/commit/499350a5a6e7512d9ed369ed63a4244b6536f4f8
- https://www.mail-archive.com/netdev@vger.kernel.org/msg186255.html
- https://access.redhat.com/security/cve/CVE-2017-14106
- http://www.debian.org/security/2017/dsa-3981
- https://access.redhat.com/errata/RHSA-2017:2930
- http://www.securitytracker.com/id/1039549
- http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00007.html
- https://www.mail-archive.com/netdev%40vger.kernel.org/msg186255.html