CVE-2023-6817High· 7.8▾ TwilightA use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation. The function nft_pipapo_walk did not skip inactive elements during set walk which could lead dou…
▾ 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 15.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.3%
A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation.
The function nft_pipapo_walk did not skip inactive elements during set walk which could lead double deactivations of PIPAPO (Pile Packet Policies) elements, leading to use-after-free.
We recommend upgrading past commit 317eb9685095678f2c9f5a8189de698c5354316a.
linux_kernel >= 5.6, < 5.10.204linux_kernel >= 5.11, < 5.15.143linux_kernel >= 5.16, < 6.1.68linux_kernel >= 6.2, < 6.6.7linux_kernel = 6.7Upgrade past the affected range:
linux_kernel 6.6.7Connected by shared product, vendor, weakness, or advisory.
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