NULL Pointer Dereference Affecting perf package, versions <0:4.18.0-372.75.1.el8_6
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Test your applications- Snyk ID SNYK-RHEL8-PERF-5957690
- published 1 Mar 2023
- disclosed 9 Aug 2022
Introduced: 9 Aug 2022
CVE-2023-1095 Open this link in a new tabHow to fix?
Upgrade RHEL:8 perf to version 0:4.18.0-372.75.1.el8_6 or higher.
This issue was patched in RHSA-2023:5627.
NVD Description
Note: Versions mentioned in the description apply only to the upstream perf package and not the perf package as distributed by RHEL.
See How to fix? for RHEL:8 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.