CVE-2023-4015
High
Description
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.
SeverityHigh
CVSS7.8
Exploit probability22. percentile0.3%
Product
Linux Kernel
PublishedSep 6, 2023
First seenSep 6, 2023
Weakness typeCWE-416Use after free
How to fix
Update
- linux linux_kernel5.10.190, 5.15.124, 6.1.43, 6.4.8 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 5.9 ≤ v < 5.10.190, 5.11 ≤ v < 5.15.124, 5.16 ≤ v < 6.1.43, 6.2 ≤ v < 6.4.8 | 5.10.190, 5.15.124, 6.1.43, 6.4.8 |
| debian debian_linux | 12.0 | — |
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