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NULL Pointer Dereference Affecting kernel-headers package, versions <0:2.6.18-238.58.1.el5

Severity

 Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
3.8% (88th percentile)

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  • Snyk IDSNYK-RHEL10-KERNELHEADERS-9860641
  • published28 Apr 2025
  • disclosed24 Feb 2017
Report a new vulnerability Found a mistake?

Introduced: 24 Feb 2017

CVE-2017-2634  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade RHEL:10 kernel-headers to version 0:2.6.18-238.58.1.el5 or higher.
This issue was patched in RHSA-2017:0347.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-headers package and not the kernel-headers package as distributed by RHEL. See How to fix? for RHEL:10 relevant fixed versions and status.

It was found that the Linux kernel's Datagram Congestion Control Protocol (DCCP) implementation before 2.6.22.17 used the IPv4-only inet_sk_rebuild_header() function for both IPv4 and IPv6 DCCP connections, which could result in memory corruptions. A remote attacker could use this flaw to crash the system.