Race Condition Affecting kernel-uek-debug package, versions <0:4.1.12-124.15.1.el7uek


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.04% (12th percentile)

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  • Snyk IDSNYK-ORACLE7-KERNELUEKDEBUG-2529246
  • published10 Apr 2022
  • disclosed9 Jan 2018

Introduced: 9 Jan 2018

CVE-2017-15129  (opens in a new tab)
CWE-362  (opens in a new tab)
First added by Snyk

How to fix?

Upgrade Oracle:7 kernel-uek-debug to version 0:4.1.12-124.15.1.el7uek or higher.
This issue was patched in ELSA-2018-4108.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-uek-debug package and not the kernel-uek-debug package as distributed by Oracle. See How to fix? for Oracle:7 relevant fixed versions and status.

A use-after-free vulnerability was found in network namespaces code affecting the Linux kernel before 4.14.11. The function get_net_ns_by_id() in net/core/net_namespace.c does not check for the net::count value after it has found a peer network in netns_ids idr, which could lead to double free and memory corruption. This vulnerability could allow an unprivileged local user to induce kernel memory corruption on the system, leading to a crash. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although it is thought to be unlikely.

CVSS Scores

version 3.1