NULL Pointer Dereference Affecting kernel-rt package, versions <0:3.10.0-693.rt56.617.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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Start learning- Snyk IDSNYK-CENTOS7-KERNELRT-2089495
- published26 Jul 2021
- disclosed4 Feb 2017
Introduced: 4 Feb 2017
CVE-2017-5970 (opens in a new tab)How to fix?
Upgrade Centos:7 kernel-rt 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 package and not the kernel-rt package as distributed by Centos.
See How to fix? for Centos:7 relevant fixed versions and status.
The ipv4_pktinfo_prepare function in net/ipv4/ip_sockglue.c in the Linux kernel through 4.9.9 allows attackers to cause a denial of service (system crash) via (1) an application that makes crafted system calls or possibly (2) IPv4 traffic with invalid IP options.
References
- http://www.securityfocus.com/bid/96233
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=34b2cef20f19c87999fff3da4071e66937db9644
- https://bugzilla.redhat.com/show_bug.cgi?id=1421638
- https://github.com/torvalds/linux/commit/34b2cef20f19c87999fff3da4071e66937db9644
- https://patchwork.ozlabs.org/patch/724136/
- https://source.android.com/security/bulletin/2017-07-01
- https://access.redhat.com/security/cve/CVE-2017-5970
- http://www.debian.org/security/2017/dsa-3791
- http://www.openwall.com/lists/oss-security/2017/02/12/3
- https://access.redhat.com/errata/RHSA-2017:2077