Description

In the Linux kernel, the following vulnerability has been resolved: dccp: Fix out of bounds access in DCCP error handler There was a previous attempt to fix an out-of-bounds access in the DCCP error handlers, but that fix assumed that the error handlers only want to access the first 8 bytes of the DCCP header. Actually, they also look at the DCCP sequence number, which is stored beyond 8 bytes, so an explicit pskb_may_pull() is required.

References 9

• git.kernel.org https://git.kernel.org/stable/c/177212bf6dc1ff2d13d0409cddc5c9e81feec63d
• git.kernel.org https://git.kernel.org/stable/c/3533e10272555c422a7d51ebc0ce8c483429f7f2
• git.kernel.org https://git.kernel.org/stable/c/4b8a938e329ae4eb54b73b0c87b5170607b038a8
• git.kernel.org https://git.kernel.org/stable/c/6ecf09699eb1554299aa1e7fd13e9e80f656c2f9
• git.kernel.org https://git.kernel.org/stable/c/7a7dd70cb954d3efa706a429687ded88c02496fa
• git.kernel.org https://git.kernel.org/stable/c/977ad86c2a1bcaf58f01ab98df5cc145083c489c
• git.kernel.org https://git.kernel.org/stable/c/d8171411a661253e6271fa10b65b46daf1b6471c
• git.kernel.org https://git.kernel.org/stable/c/ec620c34f5fa5d055f9f6136a387755db6157712
• git.kernel.org https://git.kernel.org/stable/c/f8a7f10a1dccf9868ff09342a73dce27501b86df

Remediation