VULN/vuln-cve
1
0 Fork 0
Code Pull Requests Actions Activity
Files
c1444140e59c61ba154436ea0cd6284d8a97c3f0
vuln-cve/data/2026/46xxx/CVE-2026-46198.json
T

264 lines
13 KiB
JSON
Raw Blame History

{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-46198",
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"state": "PUBLISHED",
"assignerShortName": "Linux",
"dateReserved": "2026-05-13T15:03:33.104Z",
"datePublished": "2026-05-28T09:40:14.558Z",
"dateUpdated": "2026-08-05T12:30:22.970Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux",
"dateUpdated": "2026-08-05T12:30:22.970Z"
},
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbatman-adv: fix integer overflow on buff_pos\n\nFixing an integer overflow present in batadv_iv_ogm_send_to_if. The size\ncheck is done using the int type in batadv_iv_ogm_aggr_packet whereas the\nbuff_pos variable uses the s16 type. This could lead to an out-of-bound\nread."
}
],
"metrics": [
{
"cvssV3_1": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"baseScore": 8.8,
"baseSeverity": "HIGH"
},
"scenarios": [
{
"lang": "en",
"value": "AV:A - batman-adv OGMs are layer-2 mesh management frames received from neighboring mesh nodes; they are not IP-routable, so an attacker must be on the same mesh/L2 (WiFi/Ethernet) segment.\nAC:L - The attacker fully controls the crafted OGM's size and tvlv_len, and in a mesh deployed over a large-MTU interface (required for packet_len>32767) can reliably and repeatedly trigger the overflow; the negative-offset check passes for nearly all values.\nPR:N - batman-adv performs no authentication of OGMs; any node on the mesh can broadcast frames that the victim node automatically processes and forwards.\nUI:N - Received OGMs are parsed, forwarded and aggregated entirely by the kernel without any user action.\nS:U - The out-of-bounds read/write corrupts kernel memory within the same kernel security authority; no boundary (VM/IOMMU) is crossed.\nC:H - The wrapped negative buff_pos causes reads of kernel memory before/around the skb buffer (tvlv_len and OGM fields), an out-of-bounds read of attacker-influenced kernel memory.\nI:H - The loop body writes ogm->flags (set/clear BATADV_DIRECTLINK) at an attacker-influenced negative offset from skb->data, an out-of-bounds write giving a memory-corruption primitive.\nA:H - Continued iteration over wild pointers dereferences out-of-bounds/unmapped memory, reliably causing a kernel oops/panic."
}
]
}
],
"affected": [
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"net/batman-adv/bat_iv_ogm.c"
],
"versions": [
{
"version": "c6c8fea29769d998d94fcec9b9f14d4b52b349d3",
"lessThan": "867cd090760e8f5cd206f387b47ff9c56fac04e9",
"status": "affected",
"versionType": "git"
},
{
"version": "c6c8fea29769d998d94fcec9b9f14d4b52b349d3",
"lessThan": "10bb1f366d884d506c38a947b43026a75d1afe9a",
"status": "affected",
"versionType": "git"
},
{
"version": "c6c8fea29769d998d94fcec9b9f14d4b52b349d3",
"lessThan": "96c9c0ed9a9579a9085765aceaa4556a6666eb82",
"status": "affected",
"versionType": "git"
},
{
"version": "c6c8fea29769d998d94fcec9b9f14d4b52b349d3",
"lessThan": "f61499359fa529f0d45a53bf7c573a49eb6322e6",
"status": "affected",
"versionType": "git"
},
{
"version": "c6c8fea29769d998d94fcec9b9f14d4b52b349d3",
"lessThan": "974542d1efc48b7e9fe16184e647615cba39969b",
"status": "affected",
"versionType": "git"
},
{
"version": "c6c8fea29769d998d94fcec9b9f14d4b52b349d3",
"lessThan": "bf872db54f91ffe70104b98c20068b2d5910e018",
"status": "affected",
"versionType": "git"
},
{
"version": "c6c8fea29769d998d94fcec9b9f14d4b52b349d3",
"lessThan": "b252797bfced986d6d92ec2f4cfcca842ce8aa78",
"status": "affected",
"versionType": "git"
},
{
"version": "c6c8fea29769d998d94fcec9b9f14d4b52b349d3",
"lessThan": "0799e5943611006b346b8813c7daf7dd5aa26bfd",
"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/batman-adv/bat_iv_ogm.c"
],
"versions": [
{
"version": "2.6.38",
"status": "affected"
},
{
"version": "0",
"lessThan": "2.6.38",
"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": "6.12.90",
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.18.32",
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "7.0.9",
"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": "2.6.38",
"versionEndExcluding": "5.10.258"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "2.6.38",
"versionEndExcluding": "5.15.209"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "2.6.38",
"versionEndExcluding": "6.1.175"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "2.6.38",
"versionEndExcluding": "6.6.140"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "2.6.38",
"versionEndExcluding": "6.12.90"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "2.6.38",
"versionEndExcluding": "6.18.32"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "2.6.38",
"versionEndExcluding": "7.0.9"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "2.6.38",
"versionEndExcluding": "7.1"
}
]
}
]
}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/867cd090760e8f5cd206f387b47ff9c56fac04e9"
},
{
"url": "https://git.kernel.org/stable/c/10bb1f366d884d506c38a947b43026a75d1afe9a"
},
{
"url": "https://git.kernel.org/stable/c/96c9c0ed9a9579a9085765aceaa4556a6666eb82"
},
{
"url": "https://git.kernel.org/stable/c/f61499359fa529f0d45a53bf7c573a49eb6322e6"
},
{
"url": "https://git.kernel.org/stable/c/974542d1efc48b7e9fe16184e647615cba39969b"
},
{
"url": "https://git.kernel.org/stable/c/bf872db54f91ffe70104b98c20068b2d5910e018"
},
{
"url": "https://git.kernel.org/stable/c/b252797bfced986d6d92ec2f4cfcca842ce8aa78"
},
{
"url": "https://git.kernel.org/stable/c/0799e5943611006b346b8813c7daf7dd5aa26bfd"
}
],
"title": "batman-adv: fix integer overflow on buff_pos",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
}
}
View Git Blame Copy Permalink