CVE-2023-4015
A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation. On an error when building a nftables rule, deactivating immediate expressions in nft_immediate_deactivate() can lead unbinding the chain and objects be deactivated but later used. We recommend upgrading past commit 0a771f7b266b02d262900c75f1e175c7fe76fec2.
- Score
- CVSS 3.1 7.8 High
- Status
- Modified - cve-coordination@google.com
- Published
- 2023-09-06
- Last modified
- 2026-10-14
- Weaknesses
- CWE-416
Affected products
- Debian Linux (Debian)
- Kernel (Linux)
- Linux Kernel (Linux)
- Simatic S7-1500 Tm Mfp - Gnulinux Subsystem (Siemens)
References
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0a771f7b266b02d262900c75f1e175c7fe76fec2
- https://kernel.dance/0a771f7b266b02d262900c75f1e175c7fe76fec2
- https://www.debian.org/security/2023/dsa-5492
- https://cert-portal.siemens.com/productcert/html/ssa-831302.html
- https://cert-portal.siemens.com/productcert/html/ssa-794697.html
