NULL Pointer Dereference Affecting kernel-uek-debug-devel package, versions <0:4.1.12-124.73.2.el7uek


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.04% (15th percentile)

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  • Snyk IDSNYK-ORACLE7-KERNELUEKDEBUGDEVEL-5408175
  • published5 Apr 2023
  • disclosed28 Feb 2023

Introduced: 28 Feb 2023

CVE-2023-1095  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade Oracle:7 kernel-uek-debug-devel to version 0:4.1.12-124.73.2.el7uek or higher.
This issue was patched in ELSA-2023-12232.

NVD Description

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

In nf_tables_updtable, if nf_tables_table_enable returns an error, nft_trans_destroy is called to free the transaction object. nft_trans_destroy() calls list_del(), but the transaction was never placed on a list -- the list head is all zeroes, this results in a NULL pointer dereference.

CVSS Scores

version 3.1