430 lines
21 KiB
JSON
430 lines
21 KiB
JSON
{
|
|
"dataType": "CVE_RECORD",
|
|
"dataVersion": "5.2",
|
|
"cveMetadata": {
|
|
"cveId": "CVE-2026-46132",
|
|
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
|
|
"state": "PUBLISHED",
|
|
"assignerShortName": "Linux",
|
|
"dateReserved": "2026-05-13T15:03:33.099Z",
|
|
"datePublished": "2026-05-28T09:35:47.047Z",
|
|
"dateUpdated": "2026-11-10T12:47:17.536Z"
|
|
},
|
|
"containers": {
|
|
"cna": {
|
|
"providerMetadata": {
|
|
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
|
|
"shortName": "Linux",
|
|
"dateUpdated": "2026-06-14T17:56:50.522Z"
|
|
},
|
|
"descriptions": [
|
|
{
|
|
"lang": "en",
|
|
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: rtnetlink: zero ifla_vf_broadcast to avoid stack infoleak in rtnl_fill_vfinfo\n\nrtnl_fill_vfinfo() declares struct ifla_vf_broadcast on the stack\nwithout initialisation:\n\n\tstruct ifla_vf_broadcast vf_broadcast;\n\nThe struct contains a single fixed 32-byte field:\n\n\t/* include/uapi/linux/if_link.h */\n\tstruct ifla_vf_broadcast {\n\t\t__u8 broadcast[32];\n\t};\n\nThe function then copies dev->broadcast into it using dev->addr_len\nas the length:\n\n\tmemcpy(vf_broadcast.broadcast, dev->broadcast, dev->addr_len);\n\nOn Ethernet devices (the overwhelming majority of SR-IOV NICs)\ndev->addr_len is 6, so only the first 6 bytes of broadcast[] are\nwritten. The remaining 26 bytes retain whatever was previously on\nthe kernel stack. The full struct is then handed to userspace via:\n\n\tnla_put(skb, IFLA_VF_BROADCAST,\n\t\tsizeof(vf_broadcast), &vf_broadcast)\n\nleaking up to 26 bytes of uninitialised kernel stack per VF per\nRTM_GETLINK request, repeatable.\n\nThe other vf_* structs in the same function are explicitly zeroed\nfor exactly this reason - see the memset() calls for ivi,\nvf_vlan_info, node_guid and port_guid a few lines above.\nvf_broadcast was simply missed when it was added.\n\nReachability: any unprivileged local process can open AF_NETLINK /\nNETLINK_ROUTE without capabilities and send RTM_GETLINK with an\nIFLA_EXT_MASK attribute carrying RTEXT_FILTER_VF. The kernel walks\neach VF and emits IFLA_VF_BROADCAST, leaking 26 bytes of stack per\nVF per request. Stack residue at this call site can include return\naddresses and transient sensitive data; KASAN with stack\ninstrumentation, or KMSAN, will flag the nla_put() when reproduced.\n\nZero the on-stack struct before the partial memcpy, matching the\nexisting pattern used for the other vf_* structs in the same\nfunction."
|
|
}
|
|
],
|
|
"affected": [
|
|
{
|
|
"product": "Linux",
|
|
"vendor": "Linux",
|
|
"defaultStatus": "unaffected",
|
|
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
|
|
"programFiles": [
|
|
"net/core/rtnetlink.c"
|
|
],
|
|
"versions": [
|
|
{
|
|
"version": "75345f888f700c4ab2448287e35d48c760b202e6",
|
|
"lessThan": "14271b401ec6a4bf0d88054106fc2956084717e1",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "75345f888f700c4ab2448287e35d48c760b202e6",
|
|
"lessThan": "cccce3190ba4356432b9f22369b56123d3d89f0d",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "75345f888f700c4ab2448287e35d48c760b202e6",
|
|
"lessThan": "a44fbb631cba646532f3948636626f81717365a7",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "75345f888f700c4ab2448287e35d48c760b202e6",
|
|
"lessThan": "0653c0516234c8258975d268a749115fc0f0ff00",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "75345f888f700c4ab2448287e35d48c760b202e6",
|
|
"lessThan": "c5b1b92ab7eff1a6e8c507ddde6fd02fabd0cfa8",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "75345f888f700c4ab2448287e35d48c760b202e6",
|
|
"lessThan": "fbe0e6197225e6a83cf113a67a4b425f8de0bcd5",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "75345f888f700c4ab2448287e35d48c760b202e6",
|
|
"lessThan": "38bcc21f52246badb3154b6158dcb381d98de011",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "75345f888f700c4ab2448287e35d48c760b202e6",
|
|
"lessThan": "4b9e327991815e128ad3af75c3a04630a63ce3e0",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
}
|
|
]
|
|
},
|
|
{
|
|
"product": "Linux",
|
|
"vendor": "Linux",
|
|
"defaultStatus": "affected",
|
|
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
|
|
"programFiles": [
|
|
"net/core/rtnetlink.c"
|
|
],
|
|
"versions": [
|
|
{
|
|
"version": "5.3",
|
|
"status": "affected"
|
|
},
|
|
{
|
|
"version": "0",
|
|
"lessThan": "5.3",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "5.10.258",
|
|
"lessThanOrEqual": "5.10.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "5.15.209",
|
|
"lessThanOrEqual": "5.15.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.1.175",
|
|
"lessThanOrEqual": "6.1.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.6.140",
|
|
"lessThanOrEqual": "6.6.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.12.88",
|
|
"lessThanOrEqual": "6.12.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.18.30",
|
|
"lessThanOrEqual": "6.18.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "7.0.7",
|
|
"lessThanOrEqual": "7.0.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "7.1",
|
|
"lessThanOrEqual": "*",
|
|
"status": "unaffected",
|
|
"versionType": "original_commit_for_fix"
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"cpeApplicability": [
|
|
{
|
|
"nodes": [
|
|
{
|
|
"operator": "OR",
|
|
"negate": false,
|
|
"cpeMatch": [
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "5.3",
|
|
"versionEndExcluding": "5.10.258"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "5.3",
|
|
"versionEndExcluding": "5.15.209"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "5.3",
|
|
"versionEndExcluding": "6.1.175"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "5.3",
|
|
"versionEndExcluding": "6.6.140"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "5.3",
|
|
"versionEndExcluding": "6.12.88"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "5.3",
|
|
"versionEndExcluding": "6.18.30"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "5.3",
|
|
"versionEndExcluding": "7.0.7"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "5.3",
|
|
"versionEndExcluding": "7.1"
|
|
}
|
|
]
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"references": [
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/14271b401ec6a4bf0d88054106fc2956084717e1"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/cccce3190ba4356432b9f22369b56123d3d89f0d"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/a44fbb631cba646532f3948636626f81717365a7"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/0653c0516234c8258975d268a749115fc0f0ff00"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/c5b1b92ab7eff1a6e8c507ddde6fd02fabd0cfa8"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/fbe0e6197225e6a83cf113a67a4b425f8de0bcd5"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/38bcc21f52246badb3154b6158dcb381d98de011"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/4b9e327991815e128ad3af75c3a04630a63ce3e0"
|
|
}
|
|
],
|
|
"title": "net: rtnetlink: zero ifla_vf_broadcast to avoid stack infoleak in rtnl_fill_vfinfo",
|
|
"x_generator": {
|
|
"engine": "bippy-1.2.0"
|
|
}
|
|
},
|
|
"adp": [
|
|
{
|
|
"x_adpType": "supplier",
|
|
"providerMetadata": {
|
|
"orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
|
|
"shortName": "siemens-SADP",
|
|
"dateUpdated": "2026-11-10T12:47:17.536Z"
|
|
},
|
|
"affected": [
|
|
{
|
|
"vendor": "Siemens",
|
|
"product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)",
|
|
"versions": [
|
|
{
|
|
"status": "affected",
|
|
"version": "V3.1.6",
|
|
"lessThan": "*",
|
|
"versionType": "custom"
|
|
}
|
|
],
|
|
"defaultStatus": "unknown"
|
|
},
|
|
{
|
|
"vendor": "Siemens",
|
|
"product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)",
|
|
"versions": [
|
|
{
|
|
"status": "affected",
|
|
"version": "V3.1.7",
|
|
"lessThan": "*",
|
|
"versionType": "custom"
|
|
}
|
|
],
|
|
"defaultStatus": "unknown"
|
|
},
|
|
{
|
|
"vendor": "Siemens",
|
|
"product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0)",
|
|
"versions": [
|
|
{
|
|
"status": "affected",
|
|
"version": "V3.1.6",
|
|
"lessThan": "*",
|
|
"versionType": "custom"
|
|
}
|
|
],
|
|
"defaultStatus": "unknown"
|
|
},
|
|
{
|
|
"vendor": "Siemens",
|
|
"product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0)",
|
|
"versions": [
|
|
{
|
|
"status": "affected",
|
|
"version": "V3.1.7",
|
|
"lessThan": "*",
|
|
"versionType": "custom"
|
|
}
|
|
],
|
|
"defaultStatus": "unknown"
|
|
},
|
|
{
|
|
"vendor": "Siemens",
|
|
"product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0)",
|
|
"versions": [
|
|
{
|
|
"status": "affected",
|
|
"version": "V3.1.6",
|
|
"lessThan": "*",
|
|
"versionType": "custom"
|
|
}
|
|
],
|
|
"defaultStatus": "unknown"
|
|
},
|
|
{
|
|
"vendor": "Siemens",
|
|
"product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0)",
|
|
"versions": [
|
|
{
|
|
"status": "affected",
|
|
"version": "V3.1.7",
|
|
"lessThan": "*",
|
|
"versionType": "custom"
|
|
}
|
|
],
|
|
"defaultStatus": "unknown"
|
|
},
|
|
{
|
|
"vendor": "Siemens",
|
|
"product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0)",
|
|
"versions": [
|
|
{
|
|
"status": "affected",
|
|
"version": "V3.1.6",
|
|
"lessThan": "*",
|
|
"versionType": "custom"
|
|
}
|
|
],
|
|
"defaultStatus": "unknown"
|
|
},
|
|
{
|
|
"vendor": "Siemens",
|
|
"product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0)",
|
|
"versions": [
|
|
{
|
|
"status": "affected",
|
|
"version": "V3.1.7",
|
|
"lessThan": "*",
|
|
"versionType": "custom"
|
|
}
|
|
],
|
|
"defaultStatus": "unknown"
|
|
},
|
|
{
|
|
"vendor": "Siemens",
|
|
"product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0)",
|
|
"versions": [
|
|
{
|
|
"status": "affected",
|
|
"version": "V3.1.6",
|
|
"lessThan": "*",
|
|
"versionType": "custom"
|
|
}
|
|
],
|
|
"defaultStatus": "unknown"
|
|
},
|
|
{
|
|
"vendor": "Siemens",
|
|
"product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0)",
|
|
"versions": [
|
|
{
|
|
"status": "affected",
|
|
"version": "V3.1.7",
|
|
"lessThan": "*",
|
|
"versionType": "custom"
|
|
}
|
|
],
|
|
"defaultStatus": "unknown"
|
|
}
|
|
],
|
|
"references": [
|
|
{
|
|
"url": "https://cert-portal.siemens.com/productcert/html/ssa-019113.html"
|
|
},
|
|
{
|
|
"url": "https://cert-portal.siemens.com/productcert/html/ssa-457936.html"
|
|
}
|
|
]
|
|
},
|
|
{
|
|
"metrics": [
|
|
{
|
|
"other": {
|
|
"type": "ssvc",
|
|
"content": {
|
|
"id": "CVE-2026-46132",
|
|
"role": "CISA Coordinator",
|
|
"options": [
|
|
{
|
|
"Exploitation": "none"
|
|
},
|
|
{
|
|
"Automatable": "no"
|
|
},
|
|
{
|
|
"Technical Impact": "partial"
|
|
}
|
|
],
|
|
"version": "2.0.3",
|
|
"timestamp": "2026-11-06T16:09:28.786065Z"
|
|
}
|
|
}
|
|
}
|
|
],
|
|
"title": "CISA ADP Vulnrichment",
|
|
"providerMetadata": {
|
|
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
|
|
"shortName": "CISA-ADP",
|
|
"dateUpdated": "2026-11-06T16:13:39.813Z"
|
|
}
|
|
}
|
|
]
|
|
}
|
|
} |