277 lines
14 KiB
JSON
277 lines
14 KiB
JSON
{
|
|
"dataType": "CVE_RECORD",
|
|
"dataVersion": "5.2",
|
|
"cveMetadata": {
|
|
"cveId": "CVE-2024-27403",
|
|
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
|
|
"state": "PUBLISHED",
|
|
"assignerShortName": "Linux",
|
|
"dateReserved": "2024-02-25T13:47:42.681Z",
|
|
"datePublished": "2024-05-17T11:40:17.992Z",
|
|
"dateUpdated": "2026-08-05T11:29:35.677Z"
|
|
},
|
|
"containers": {
|
|
"cna": {
|
|
"providerMetadata": {
|
|
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
|
|
"shortName": "Linux",
|
|
"dateUpdated": "2026-08-05T11:29:35.677Z"
|
|
},
|
|
"descriptions": [
|
|
{
|
|
"lang": "en",
|
|
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nft_flow_offload: reset dst in route object after setting up flow\n\ndst is transferred to the flow object, route object does not own it\nanymore. Reset dst in route object, otherwise if flow_offload_add()\nfails, error path releases dst twice, leading to a refcount underflow."
|
|
}
|
|
],
|
|
"metrics": [
|
|
{
|
|
"cvssV3_1": {
|
|
"version": "3.1",
|
|
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
|
|
"baseScore": 7.8,
|
|
"baseSeverity": "HIGH"
|
|
},
|
|
"scenarios": [
|
|
{
|
|
"lang": "en",
|
|
"value": "AV:L - The vulnerability lives in the nftables flow_offload expression, which requires local nftables/netlink configuration (flowtable + FORWARD-chain rule + conntrack zone rules) to set up and to force the failing insert. Per kernel scoring convention netfilter/nftables is treated as Local, even though the final trigger is a forwarded packet.\nAC:L - The attacker deterministically forces `flow_offload_add()` to return -EEXIST because the flow_offload_tuple hash key excludes the conntrack zone, so two zone-separated conntracks with the same 5-tuple and ingress ifindex always collide. No race and no uncontrolled memory-layout condition is involved.\nPR:L - Configuring the flowtable and rules only needs CAP_NET_ADMIN evaluated via `netlink_net_capable()`, which an unprivileged user obtains with `unshare -Urn`; forwarded traffic can then be generated entirely inside that namespace with veth pairs.\nUI:N - The attacker sets up the namespace, nftables ruleset and traffic themselves; no victim action of any kind is needed.\nS:U - The corruption is confined to kernel memory managed by the same kernel security authority; no VM, IOMMU or sandbox boundary is crossed.\nC:H - The dst refcount underflow frees a `struct dst_entry` that remains referenced by skbs and the route cache, giving a use-after-free on a heap object the attacker can reclaim and read back, enabling disclosure of arbitrary kernel memory.\nI:H - The freed dst is reclaimable via heap spray and contains `ops`, `input()` and `output()` function pointers dereferenced on every forwarded packet, yielding an arbitrary-write/control-flow-hijack primitive.\nA:H - The premature free of a live routing cache entry causes immediate use-after-free on the packet forwarding path, reliably producing an oops or panic, and can be repeated at will."
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"affected": [
|
|
{
|
|
"product": "Linux",
|
|
"vendor": "Linux",
|
|
"defaultStatus": "unaffected",
|
|
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
|
|
"programFiles": [
|
|
"include/net/netfilter/nf_flow_table.h",
|
|
"net/netfilter/nf_flow_table_core.c"
|
|
],
|
|
"versions": [
|
|
{
|
|
"version": "a3c90f7a2323b331ae816d5b0633e68148e25d04",
|
|
"lessThan": "4c167af9f6b5ae4a5dbc243d5983c295ccc2e43c",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "a3c90f7a2323b331ae816d5b0633e68148e25d04",
|
|
"lessThan": "012df10717da02367aaf92c65f9c89db206c15f4",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "a3c90f7a2323b331ae816d5b0633e68148e25d04",
|
|
"lessThan": "558b00a30e05753a62ecc7e05e939ca8f0241148",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "a3c90f7a2323b331ae816d5b0633e68148e25d04",
|
|
"lessThan": "670548c8db44d76e40e1dfc06812bca36a61e9ae",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "a3c90f7a2323b331ae816d5b0633e68148e25d04",
|
|
"lessThan": "9e0f0430389be7696396c62f037be4bf72cf93e3",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
}
|
|
]
|
|
},
|
|
{
|
|
"product": "Linux",
|
|
"vendor": "Linux",
|
|
"defaultStatus": "affected",
|
|
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
|
|
"programFiles": [
|
|
"include/net/netfilter/nf_flow_table.h",
|
|
"net/netfilter/nf_flow_table_core.c"
|
|
],
|
|
"versions": [
|
|
{
|
|
"version": "4.16",
|
|
"status": "affected"
|
|
},
|
|
{
|
|
"version": "0",
|
|
"lessThan": "4.16",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "5.15.150",
|
|
"lessThanOrEqual": "5.15.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.1.80",
|
|
"lessThanOrEqual": "6.1.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.6.19",
|
|
"lessThanOrEqual": "6.6.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.7.7",
|
|
"lessThanOrEqual": "6.7.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.8",
|
|
"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": "4.16",
|
|
"versionEndExcluding": "5.15.150"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "4.16",
|
|
"versionEndExcluding": "6.1.80"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "4.16",
|
|
"versionEndExcluding": "6.6.19"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "4.16",
|
|
"versionEndExcluding": "6.7.7"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "4.16",
|
|
"versionEndExcluding": "6.8"
|
|
}
|
|
]
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"references": [
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/4c167af9f6b5ae4a5dbc243d5983c295ccc2e43c"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/012df10717da02367aaf92c65f9c89db206c15f4"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/558b00a30e05753a62ecc7e05e939ca8f0241148"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/670548c8db44d76e40e1dfc06812bca36a61e9ae"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/9e0f0430389be7696396c62f037be4bf72cf93e3"
|
|
}
|
|
],
|
|
"title": "netfilter: nft_flow_offload: reset dst in route object after setting up flow",
|
|
"x_generator": {
|
|
"engine": "bippy-1.2.0"
|
|
}
|
|
},
|
|
"adp": [
|
|
{
|
|
"title": "CISA ADP Vulnrichment",
|
|
"metrics": [
|
|
{
|
|
"other": {
|
|
"type": "ssvc",
|
|
"content": {
|
|
"id": "CVE-2024-27403",
|
|
"role": "CISA Coordinator",
|
|
"options": [
|
|
{
|
|
"Exploitation": "none"
|
|
},
|
|
{
|
|
"Automatable": "no"
|
|
},
|
|
{
|
|
"Technical Impact": "partial"
|
|
}
|
|
],
|
|
"version": "2.0.3",
|
|
"timestamp": "2024-05-17T17:17:07.998820Z"
|
|
}
|
|
}
|
|
}
|
|
],
|
|
"providerMetadata": {
|
|
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
|
|
"shortName": "CISA-ADP",
|
|
"dateUpdated": "2024-06-04T17:46:43.380Z"
|
|
}
|
|
},
|
|
{
|
|
"providerMetadata": {
|
|
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
|
|
"shortName": "CVE",
|
|
"dateUpdated": "2024-08-02T00:34:52.105Z"
|
|
},
|
|
"title": "CVE Program Container",
|
|
"references": [
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/4c167af9f6b5ae4a5dbc243d5983c295ccc2e43c",
|
|
"tags": [
|
|
"x_transferred"
|
|
]
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/012df10717da02367aaf92c65f9c89db206c15f4",
|
|
"tags": [
|
|
"x_transferred"
|
|
]
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/558b00a30e05753a62ecc7e05e939ca8f0241148",
|
|
"tags": [
|
|
"x_transferred"
|
|
]
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/670548c8db44d76e40e1dfc06812bca36a61e9ae",
|
|
"tags": [
|
|
"x_transferred"
|
|
]
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/9e0f0430389be7696396c62f037be4bf72cf93e3",
|
|
"tags": [
|
|
"x_transferred"
|
|
]
|
|
}
|
|
]
|
|
}
|
|
]
|
|
}
|
|
} |