kernel: netfilter: nf_conntrack_h323: check for zero length in DecodeQ931()

A flaw was found in the Linux kernel's netfilter subsystem, specifically within the nfconntrackh323 module. This vulnerability occurs in the DecodeQ931 function when processing a zero-length value from a packet. An integer underflow during a length calculation results in a large, incorrect value...

kernel: netfilter: nf_conntrack_h323: Add protection for bmp length out of range

A vulnerability was found in the netfilter subsystem of the Linux kernel, specifically in the nfconntrackh323 module. This issue involves inadequate protection for BMP length values, potentially leading to out-of-range conditions...