Description
In the Linux kernel, the following vulnerability has been resolved:
ipv4: icmp: validate reply type before using icmp_pointers
Extended echo replies use ICMP_EXT_ECHOREPLY as the outbound reply type. That value is outside the range covered by icmp_pointers[], which only describes the traditional ICMP types up to NR_ICMP_TYPES.
Avoid consulting icmp_pointers[] for reply types outside that range, and use array_index_nospec() for the remaining in-range lookup. Normal ICMP replies keep their existing behavior unchanged.
Metrics
CVSS 3.1 8.2/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= d329ea5bd8845f0b196bf41b18b6173340d6e0e4, < b3a88fc5ae024d43c5ecf653f3bbe837e4a6dc99; >= d329ea5bd8845f0b196bf41b18b6173340d6e0e4, < 93df2af4f491de33827550b9d420f01808c0706b; >= d329ea5bd8845f0b196bf41b18b6173340d6e0e4, < 92e7c209036dcc0e8ffdf806fdfd3645b263bea5; >= d329ea5bd8845f0b196bf41b18b6173340d6e0e4, < bc64a66e0b9ad937d3d49934242ee62b01ba9a94; >= d329ea5bd8845f0b196bf41b18b6173340d6e0e4, < c2178ff1c70ebfc2ab9651b230c58a34683db759; >= d329ea5bd8845f0b196bf41b18b6173340d6e0e4, < d700c34a5d186b9ba0715bcb19e0ff80ffbfbfc1; >= d329ea5bd8845f0b196bf41b18b6173340d6e0e4, < 67bf002a2d7387a6312138210d0bd06e3cf4879b |
| Linux | Linux | 5.13 |
| 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) | >= V3.1.7, < * |
| 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) | >= V3.1.7, < * |
| 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) | >= V3.1.7, < * |
| 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) | >= V3.1.7, < * |
| Siemens | SIMATIC S7-1500 TM MFP - GNU/Linux subsystem | < * |
| 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) | >= V3.1.7, < * |
References
- https://git.kernel.org/stable/c/67bf002a2d7387a6312138210d0bd06e3cf4879bPatch
- https://git.kernel.org/stable/c/92e7c209036dcc0e8ffdf806fdfd3645b263bea5Patch
- https://git.kernel.org/stable/c/93df2af4f491de33827550b9d420f01808c0706bPatch
- https://git.kernel.org/stable/c/b3a88fc5ae024d43c5ecf653f3bbe837e4a6dc99Patch
- https://git.kernel.org/stable/c/bc64a66e0b9ad937d3d49934242ee62b01ba9a94Patch
- https://git.kernel.org/stable/c/c2178ff1c70ebfc2ab9651b230c58a34683db759Patch
- https://git.kernel.org/stable/c/d700c34a5d186b9ba0715bcb19e0ff80ffbfbfc1Patch
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html
- https://cert-portal.siemens.com/productcert/html/ssa-457936.html
- https://cert-portal.siemens.com/productcert/html/ssa-784472.html
Timeline
- Published
- May 27, 2026
- Last modified
- Nov 10, 2026
- NVD status
- Modified