Entreprise française de cybersécurité depuis 2004
☎ 03 60 47 09 81 - info@securiteinfo.com
☎ 03 60 47 09 81 - info@securiteinfo.com
In the Linux kernel, the following vulnerability has been resolved:vsock/virtio: discard packets if the transport changesIf the socket has been de-assigned or assigned to another transport,we must discard any packets received because they are not expectedand would cause issues when we access vsk->transport.A possible scenario is described by Hyunwoo Kim in the attached link,where after a first connect() interrupted by a signal, and a secondconnect() failed, we can find `vsk->transport` at NULL, leading to aNULL pointer dereference.
No PoCs from references.
- https://github.com/fkie-cad/nvd-json-data-feeds
- https://github.com/w4zu/Debian_security
- https://github.com/xairy/linux-kernel-exploitation