CVE-2023-1095 Null dereference in Linux kernel netfilter subsystem.

What is CVE-2023-1095?

CVE-2023-1095 is a medium-severity vulnerability in Linux kernel, published on 28 Feb 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

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.

Weakness: CWE-476

Which versions are affected by CVE-2023-1095?

It affects 2 products.

Products include Linux kernel, Redhat Enterprise Linux.

How do I fix CVE-2023-1095?

Apply the vendor's patch.

Is CVE-2023-1095 being exploited?

There is no known exploitation of CVE-2023-1095 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as AZL-13822, DEBIAN-CVE-2023-1095, GHSA-grc4-c844-m2mx, UBUNTU-CVE-2023-1095.