NULL Pointer Dereference Affecting kernel package, versions <0:4.14.291-218.527.amzn2
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Test your applications- Snyk ID SNYK-AMZN2-KERNEL-6663344
- published 19 Apr 2024
- disclosed 28 Feb 2023
Introduced: 28 Feb 2023
CVE-2023-1095 Open this link in a new tabHow to fix?
Upgrade Amazon-Linux:2 kernel to version 0:4.14.291-218.527.amzn2 or higher.
This issue was patched in ALAS2-2022-1838.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel package and not the kernel package as distributed by Amazon-Linux.
See How to fix? for Amazon-Linux:2 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.