Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix the ACK parser to extract the SACK table for parsing Fix modification of the received skbuff in rxrpc_input_soft_acks() and a potential incorrect access of the buffer in a fragmented UDP packet (the packet would probably have to be deliberately pre-generated as fragmented) when AF_RXRPC tries to extract the contents of the SACK table by copying out the contents of the SACK table into a buffer before attempting to parse AF_RXRPC assumes that it can just call skb_condense() and then validly access the SACK table from skb->data and that it will be a flat buffer - but skb_condense() can silently fail to do anything under some circumstances. Note that whilst rxrpc_input_soft_acks() should be able to parse extended ACKs, the rest of AF_RXRPC doesn't currently support that. Further, there's then no need to call skb_condense() in rxrpc_input_ack(), so don't.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected d57a3a151660902091491ac2633134e1be92557f before 5d1ae4e17a3ecd8561cdb4f4f70152f41039c4e1; affected d57a3a151660902091491ac2633134e1be92557f before 775c5e89272a2615b72bb84f611ba66fa3b7493e; affected d57a3a151660902091491ac2633134e1be92557f before 566c4c1244de50fbff1f89ff93c9d7b0fc256db4; affected d57a3a151660902091491ac2633134e1be92557f before 224298450be5c04d2a6ea1c2a94669d7ebf65d00; affected d57a3a151660902091491ac2633134e1be92557f before 333b6d5bb9f87827ac2639c737bf9613dbae7253 |
| Linux / Linux | affected 6.2; unaffected 0 before 6.2; unaffected 6.6.144 through 6.6.*; unaffected 6.12.95 through 6.12.*; unaffected 6.18.36 through 6.18.*; unaffected 7.0.13 through 7.0.*; unaffected 7.1 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/5d1ae4e17a3ecd8561cdb4f4f70152f41039c4e1
- https://git.kernel.org/stable/c/775c5e89272a2615b72bb84f611ba66fa3b7493e
- https://git.kernel.org/stable/c/566c4c1244de50fbff1f89ff93c9d7b0fc256db4
- https://git.kernel.org/stable/c/224298450be5c04d2a6ea1c2a94669d7ebf65d00
- https://git.kernel.org/stable/c/333b6d5bb9f87827ac2639c737bf9613dbae7253
ADP enrichment
No English description supplied.
No references supplied.