Patchlage

CVE-2026-100070

CVE CVE-2026-100070EUVD EUVD-2026-87067Published 2026-09-25T13:06:44.000Z

What the advisory describes

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_nat_sip: rewind offset when NAT shrinks the packet sashiko says: If map_addr() changes the packet length, such as when the public NAT IP string is shorter or longer than the internal IP, coff will still point to the offset relative to the pre-mangled packet. If the packet shrinks, coff could overshoot the correct position, potentially causing the next ct_sip_parse_header_uri() call to silently skip bytes and miss subsequent Contact headers. Could this lead to a failure to NAT those subsequent headers and leak internal network details?

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

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Carried in the product catalogue

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