Description
In the Linux kernel, the following vulnerability has been resolved:
bridge: br_nd_send: validate ND option lengths
br_nd_send() walks ND options according to option-provided lengths. A malformed option can make the parser advance beyond the computed option span or use a too-short source LLADDR option payload.
Validate option lengths against the remaining NS option area before advancing, and only read source LLADDR when the option is large enough for an Ethernet address.
Metrics
CVSS 3.1 5.5/10
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HAffected software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= ed842faeb2bd49256f00485402f3113205f91d30, < 82a42eceec7c6bdb0e0da94c0542a173b7ea57f2; >= ed842faeb2bd49256f00485402f3113205f91d30, < 259466f76f5a2148aff11134e68f4b4c6d52725b; >= ed842faeb2bd49256f00485402f3113205f91d30, < ee02d8991fd7bd86ed6ebd0deb4aab53feb0e43a; >= ed842faeb2bd49256f00485402f3113205f91d30, < e0bfd6d4dc77ab345b6c65eef0cfe9b2f69085aa; >= ed842faeb2bd49256f00485402f3113205f91d30, < c49b9256bbacb6a135654aebd12e4c0e87166b7c; >= ed842faeb2bd49256f00485402f3113205f91d30, < 837392a38445729c22e03d3abcf33f07763efd85; >= ed842faeb2bd49256f00485402f3113205f91d30, < e71303a9190496136e240c4f2872b7b0b16027a7; >= ed842faeb2bd49256f00485402f3113205f91d30, < 850837965af15707fd3142c1cf3c5bfaf022299b |
| Linux | Linux | 4.15 |
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0) | >= V3.1.6, < * |
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0) | >= V3.1.5, < * |
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0) | >= V3.1.7, < * |
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0) | >= V3.1.6, < * |
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0) | >= V3.1.5, < * |
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0) | >= V3.1.7, < * |
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0) | >= V3.1.6, < * |
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0) | >= V3.1.5, < * |
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0) | >= V3.1.7, < * |
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0) | >= V3.1.6, < * |
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0) | >= V3.1.5, < * |
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0) | >= V3.1.7, < * |
| Siemens | SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0) | >= V3.1.6, < * |
| Siemens | SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0) | >= V3.1.5, < * |
| Siemens | SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0) | >= V3.1.7, < * |
References
- https://git.kernel.org/stable/c/259466f76f5a2148aff11134e68f4b4c6d52725bPatch
- https://git.kernel.org/stable/c/82a42eceec7c6bdb0e0da94c0542a173b7ea57f2Patch
- https://git.kernel.org/stable/c/837392a38445729c22e03d3abcf33f07763efd85Patch
- https://git.kernel.org/stable/c/850837965af15707fd3142c1cf3c5bfaf022299bPatch
- https://git.kernel.org/stable/c/c49b9256bbacb6a135654aebd12e4c0e87166b7cPatch
- https://git.kernel.org/stable/c/e0bfd6d4dc77ab345b6c65eef0cfe9b2f69085aaPatch
- https://git.kernel.org/stable/c/e71303a9190496136e240c4f2872b7b0b16027a7Patch
- https://git.kernel.org/stable/c/ee02d8991fd7bd86ed6ebd0deb4aab53feb0e43aPatch
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html
- https://cert-portal.siemens.com/productcert/html/ssa-082556.html
- https://cert-portal.siemens.com/productcert/html/ssa-457936.html
Timeline
- Published
- May 1, 2026
- Last modified
- Nov 11, 2026
- NVD status
- Modified