CVE-2024-50251: netfilter: nft_payload: sanitize offset and length before calling skb_checksum()
First published: Sat Nov 09 2024(Updated: )
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.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | >=4.5<4.19.323 | |
| Linux Linux kernel | >=4.20<5.4.285 | |
| Linux Linux kernel | >=5.5<5.10.229 | |
| Linux Linux kernel | >=5.11<5.15.171 | |
| Linux Linux kernel | >=5.16<6.1.116 | |
| Linux Linux kernel | >=6.2<6.6.60 | |
| Linux Linux kernel | >=6.7<6.11.7 | |
| Linux Linux kernel | =6.12-rc1 | |
| Linux Linux kernel | =6.12-rc2 | |
| Linux Linux kernel | =6.12-rc3 | |
| Linux Linux kernel | =6.12-rc4 | |
| Linux Linux kernel | =6.12-rc5 |
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Reference Links
- https://git.kernel.org/stable/c/a661ed364ae6ae88c2fafa9ddc27df1af2a73701
- https://git.kernel.org/stable/c/ac7df3fc80fc82bcc3b1e8f6ebc0d2c435d0c534
- https://git.kernel.org/stable/c/e3e608cbad376674d19a71ccd0d41804d9393f02
- https://git.kernel.org/stable/c/b1d2de8a669fa14c499a385e056944d5352b3b40
- https://git.kernel.org/stable/c/d3217323525f7596427124359e76ea0d8fcc9874
- https://git.kernel.org/stable/c/0ab3be58b45b996764aba0187b46de19b3e58a72
- https://git.kernel.org/stable/c/c43e0ea848e7b9bef7a682cbc5608022d6d29d7b
- https://git.kernel.org/stable/c/d5953d680f7e96208c29ce4139a0e38de87a57fe
- https://github.com/slavin-ayu/CVE-2024-50251-PoC
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- version/linux linux kernel/5.11
- version/linux linux kernel/5.16
- version/linux linux kernel/6.2
- version/linux linux kernel/6.7
- version/linux linux kernel/6.12-rc1
- version/linux linux kernel/6.12-rc2
- version/linux linux kernel/6.12-rc3
- version/linux linux kernel/6.12-rc4
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