CVE-2024-50251Medium· 6.2▾ TwilightPoC availableIn the Linux kernel, the following vulnerability has been resolved: netfilter: nft_payload: sanitize offset and length before calling skb_checksum() If access to offset + length is larger than the skbuff length, then skb_checksum() tri…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 34.1 · likelihood 0.1 · exploitation 12
A public proof-of-concept already exists for this vulnerability — see Exploit availability below.
Public exploit / PoC code seen in 1 source. Availability, not in-the-wild use.
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
0.5%
1 GitHub repo (last check)
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nft_payload: sanitize offset and length before calling skb_checksum()
If access to offset + length is larger than the skbuff length, then skb_checksum() triggers BUG_ON().
skb_checksum() internally subtracts the length parameter while iterating over skbuff, BUG_ON(len) at the end of it checks that the expected length to be included in the checksum calculation is fully consumed.
linux_kernel >= 4.5, < 4.19.323linux_kernel >= 4.20, < 5.4.285linux_kernel >= 5.5, < 5.10.229linux_kernel >= 5.11, < 5.15.171linux_kernel >= 5.16, < 6.1.116linux_kernel >= 6.2, < 6.6.60linux_kernel >= 6.7, < 6.11.7linux_kernel = 6.12Upgrade past the affected range:
linux_kernel 6.11.7Connected by shared product, vendor, weakness, or advisory.
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