Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: ipv4: validate checksum_start before completing checksum If a packet with bad checksum metadata gets into the ipv4 stack, skb_checksum_help can corrupt the network header and cause a bunch of mischief. This was discovered and reported by Paulos, and has been reporoduced by others independently since. We really shouldn't allow such packets in, but as a defence in depth measure, let's also check before we complete the checksum. A more complete validation at input is forthcoming, but needs more work.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected f43798c27684ab925adde7d8acc34c78c6e50df8 before a464d950f31c89565cbaae038cc60db04fe01956; affected f43798c27684ab925adde7d8acc34c78c6e50df8 before 0fab003ef4698e0628060a45a48f14b43ba2a40a; affected f43798c27684ab925adde7d8acc34c78c6e50df8 before 94524b7b32691de2e2ce162c04d6cbc9106e5cbf; affected f43798c27684ab925adde7d8acc34c78c6e50df8 before a65f69e0f38ffbed1b128029e09097436416dc8b; affected f43798c27684ab925adde7d8acc34c78c6e50df8 before 32a8b0adaa18e52aaa0b246b5ffe683075354dbb; affected f43798c27684ab925adde7d8acc34c78c6e50df8 before f3e835af6226f1dd12160cbd696081e9b6155de0; affected f43798c27684ab925adde7d8acc34c78c6e50df8 before c3e33464746166264334641dc850a36eef7e6326; affected f43798c27684ab925adde7d8acc34c78c6e50df8 before 6785011f8b16abf40b1e9d8b2e332232b3e68822 |
| Linux / Linux | affected 2.6.27; unaffected 0 before 2.6.27; unaffected 5.10.272 through 5.10.*; unaffected 5.15.223 through 5.15.*; unaffected 6.1.190 through 6.1.*; unaffected 6.6.159 through 6.6.*; unaffected 6.12.113 through 6.12.*; unaffected 6.18.57 through 6.18.*; unaffected 7.2.11 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/a464d950f31c89565cbaae038cc60db04fe01956
- https://git.kernel.org/stable/c/0fab003ef4698e0628060a45a48f14b43ba2a40a
- https://git.kernel.org/stable/c/94524b7b32691de2e2ce162c04d6cbc9106e5cbf
- https://git.kernel.org/stable/c/a65f69e0f38ffbed1b128029e09097436416dc8b
- https://git.kernel.org/stable/c/32a8b0adaa18e52aaa0b246b5ffe683075354dbb
- https://git.kernel.org/stable/c/f3e835af6226f1dd12160cbd696081e9b6155de0
- https://git.kernel.org/stable/c/c3e33464746166264334641dc850a36eef7e6326
- https://git.kernel.org/stable/c/6785011f8b16abf40b1e9d8b2e332232b3e68822
- https://pwn.ai/blog/pwnescape
- https://vercel.com/blog/findings-from-the-1-million-dollar-vercel-sandbox-challenge
ADP enrichment
No English description supplied.
No English description supplied.
No references supplied.