{"id":"CVE-2026-90141","published":"2026-09-17T17:17:06.857","lastModified":"2026-09-18T18:17:43.397","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nipvs: fix integer overflow in ftp helper port/address parsing\n\nip_vs_ftp_get_addrport() accumulates decimal digits into a __u16\n(hport) and into unsigned char (p[]) without checking for overflow.\nA crafted FTP PASV/EPSV response with an over-long port or address\noctet wraps the value, so the helper configures the data connection\nwith a truncated port/address.\n\nThe netfilter conntrack FTP helper had the same defect, fixed in\ncommit 2b413fc689ba (\"netfilter: nf_conntrack_ftp: avoid u16\noverflows\"). Apply the equivalent fix here: widen the port accumulator\nto u32 and reject values above 65535, and reject address octets above\n255.","cvssScore":7.3,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/00bcc6d679262ea42688fba1d7819ea6e56f12ef","tags":[]},{"url":"https://git.kernel.org/stable/c/4aed450adaee3a021db27be94c61fe025b0d05ff","tags":[]},{"url":"https://git.kernel.org/stable/c/50cb9b7263a2ed01f7d2f97818a800c2ee05f661","tags":[]},{"url":"https://git.kernel.org/stable/c/b1908bff0faaa94d55be72da65879cad632e8236","tags":[]},{"url":"https://git.kernel.org/stable/c/d02de9a7a7e2484da0cf37e50614840623b98a62","tags":[]},{"url":"https://git.kernel.org/stable/c/deaa88fa010ba0dfc554d09e006ddd1ce9945c82","tags":[]},{"url":"https://git.kernel.org/stable/c/e625a9477d12baaff4025c5f9989184a907ea8fc","tags":[]},{"url":"https://git.kernel.org/stable/c/fc1493c905d7e0bc8830c1d83915cb7831daf1a1","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}