CVE-2023-4015High· 7.8▾ TwilightA 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_d…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 42.9 · likelihood 0.1 · exploitation 0
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Exploit-prediction probability, daily snapshots since Oct 14.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.3%
0.3% → 0.3%
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.
linux_kernel >= 5.9, < 5.10.190linux_kernel >= 5.11, < 5.15.124linux_kernel >= 5.16, < 6.1.43linux_kernel >= 6.2, < 6.4.8debian_linux = 12.0Upgrade past the affected range:
linux_kernel 6.4.8Connected by shared product, vendor, weakness, or advisory.
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