272 lines
16 KiB
JSON
272 lines
16 KiB
JSON
{
|
|
"dataType": "CVE_RECORD",
|
|
"dataVersion": "5.2",
|
|
"cveMetadata": {
|
|
"cveId": "CVE-2024-46858",
|
|
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
|
|
"state": "PUBLISHED",
|
|
"assignerShortName": "Linux",
|
|
"dateReserved": "2024-09-11T15:12:18.291Z",
|
|
"datePublished": "2024-09-27T12:42:49.167Z",
|
|
"dateUpdated": "2026-08-05T11:39:03.201Z"
|
|
},
|
|
"containers": {
|
|
"cna": {
|
|
"providerMetadata": {
|
|
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
|
|
"shortName": "Linux",
|
|
"dateUpdated": "2026-08-05T11:39:03.201Z"
|
|
},
|
|
"descriptions": [
|
|
{
|
|
"lang": "en",
|
|
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: pm: Fix uaf in __timer_delete_sync\n\nThere are two paths to access mptcp_pm_del_add_timer, result in a race\ncondition:\n\n CPU1\t\t\t\tCPU2\n ==== ====\n net_rx_action\n napi_poll netlink_sendmsg\n __napi_poll netlink_unicast\n process_backlog netlink_unicast_kernel\n __netif_receive_skb genl_rcv\n __netif_receive_skb_one_core netlink_rcv_skb\n NF_HOOK genl_rcv_msg\n ip_local_deliver_finish genl_family_rcv_msg\n ip_protocol_deliver_rcu genl_family_rcv_msg_doit\n tcp_v4_rcv mptcp_pm_nl_flush_addrs_doit\n tcp_v4_do_rcv mptcp_nl_remove_addrs_list\n tcp_rcv_established mptcp_pm_remove_addrs_and_subflows\n tcp_data_queue remove_anno_list_by_saddr\n mptcp_incoming_options mptcp_pm_del_add_timer\n mptcp_pm_del_add_timer kfree(entry)\n\nIn remove_anno_list_by_saddr(running on CPU2), after leaving the critical\nzone protected by \"pm.lock\", the entry will be released, which leads to the\noccurrence of uaf in the mptcp_pm_del_add_timer(running on CPU1).\n\nKeeping a reference to add_timer inside the lock, and calling\nsk_stop_timer_sync() with this reference, instead of \"entry->add_timer\".\n\nMove list_del(&entry->list) to mptcp_pm_del_add_timer and inside the pm lock,\ndo not directly access any members of the entry outside the pm lock, which\ncan avoid similar \"entry->x\" uaf."
|
|
}
|
|
],
|
|
"metrics": [
|
|
{
|
|
"cvssV3_1": {
|
|
"version": "3.1",
|
|
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
|
|
"baseScore": 8.1,
|
|
"baseSeverity": "HIGH"
|
|
},
|
|
"scenarios": [
|
|
{
|
|
"lang": "en",
|
|
"value": "AV:N - The use-after-free dereference occurs in the TCP/MPTCP receive path (`mptcp_incoming_options()` → `mptcp_pm_del_add_timer()`), driven entirely by an `ADD_ADDR` echo option in a TCP segment sent by the remote MPTCP peer, executed in softirq context. Any internet-facing MPTCP-enabled endpoint (server or Android/mobile client with a `signal` endpoint configured) processes this attacker-supplied option, so the vulnerable code is reached over the network.\nAC:H - The remote peer can hammer the racing side without limit by repeatedly sending ADD_ADDR echoes, but the freeing side must be executed concurrently by the local path manager (netlink FLUSH_ADDRS/DEL_ADDR, e.g. mptcpd reacting to an interface change), which is timing the attacker cannot influence. Winning that window is a condition beyond the remote attacker's control.\nPR:N - The attacker-controlled side requires only being the peer of an established MPTCP connection to a listening service — no account, credentials, or privileges on the target are needed, and the ADD_ADDR echo is accepted as part of normal protocol processing once the connection is fully established.\nUI:N - No victim action is required; the ADD_ADDR announcement and the peer's echo are automatic protocol behaviour, and the concurrent endpoint flush is performed by a background path-manager daemon rather than an interactive user.\nS:U - The corruption is confined to kernel heap memory within the same security authority; there is no crossing of a VM, IOMMU, or sandbox boundary.\nC:H - The freed `mptcp_pm_add_entry` lives in a generic kmalloc cache and can be reclaimed with attacker-shaped data, and the subsequent `timer_delete_sync()`/`__sock_put()` on that stale object gives a foothold for arbitrary kernel memory disclosure, as is standard for slab use-after-free.\nI:H - `__timer_delete_sync()` on the reclaimed object acts on attacker-influenced `timer->flags` and can perform an hlist unlink write (`*pprev = next; next->pprev = pprev`), and the spurious `__sock_put()` underflows the socket refcount — both yield write primitives leveragable for control-flow hijack. The same missing-lock defect also permits a double `kfree()` of the entry from two concurrent netlink removals.\nA:H - The use-after-free reliably produces a KASAN slab-use-after-free / kernel oops in softirq context (as reported by syzbot), and the resulting timer-base list corruption or socket refcount underflow causes a kernel panic."
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"affected": [
|
|
{
|
|
"product": "Linux",
|
|
"vendor": "Linux",
|
|
"defaultStatus": "unaffected",
|
|
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
|
|
"programFiles": [
|
|
"net/mptcp/pm_netlink.c"
|
|
],
|
|
"versions": [
|
|
{
|
|
"version": "00cfd77b9063dcdf3628a7087faba60de85a9cc8",
|
|
"lessThan": "0e7814b028cd50b3ff79659d23dfa9da6a1e75e1",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "00cfd77b9063dcdf3628a7087faba60de85a9cc8",
|
|
"lessThan": "3554482f4691571fc4b5490c17ae26896e62171c",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "00cfd77b9063dcdf3628a7087faba60de85a9cc8",
|
|
"lessThan": "67409b358500c71632116356a0b065f112d7b707",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "00cfd77b9063dcdf3628a7087faba60de85a9cc8",
|
|
"lessThan": "6452b162549c7f9ef54655d3fb9977b9192e6e5b",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "00cfd77b9063dcdf3628a7087faba60de85a9cc8",
|
|
"lessThan": "12134a652b0a10064844ea235173e70246eba6dc",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "00cfd77b9063dcdf3628a7087faba60de85a9cc8",
|
|
"lessThan": "b4cd80b0338945a94972ac3ed54f8338d2da2076",
|
|
"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/mptcp/pm_netlink.c"
|
|
],
|
|
"versions": [
|
|
{
|
|
"version": "5.10",
|
|
"status": "affected"
|
|
},
|
|
{
|
|
"version": "0",
|
|
"lessThan": "5.10",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "5.10.227",
|
|
"lessThanOrEqual": "5.10.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "5.15.168",
|
|
"lessThanOrEqual": "5.15.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.1.111",
|
|
"lessThanOrEqual": "6.1.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.6.52",
|
|
"lessThanOrEqual": "6.6.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.10.11",
|
|
"lessThanOrEqual": "6.10.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.11",
|
|
"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": "5.10",
|
|
"versionEndExcluding": "5.10.227"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "5.10",
|
|
"versionEndExcluding": "5.15.168"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "5.10",
|
|
"versionEndExcluding": "6.1.111"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "5.10",
|
|
"versionEndExcluding": "6.6.52"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "5.10",
|
|
"versionEndExcluding": "6.10.11"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "5.10",
|
|
"versionEndExcluding": "6.11"
|
|
}
|
|
]
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"references": [
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/0e7814b028cd50b3ff79659d23dfa9da6a1e75e1"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/3554482f4691571fc4b5490c17ae26896e62171c"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/67409b358500c71632116356a0b065f112d7b707"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/6452b162549c7f9ef54655d3fb9977b9192e6e5b"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/12134a652b0a10064844ea235173e70246eba6dc"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/b4cd80b0338945a94972ac3ed54f8338d2da2076"
|
|
}
|
|
],
|
|
"title": "mptcp: pm: Fix uaf in __timer_delete_sync",
|
|
"x_generator": {
|
|
"engine": "bippy-1.2.0"
|
|
}
|
|
},
|
|
"adp": [
|
|
{
|
|
"metrics": [
|
|
{
|
|
"other": {
|
|
"type": "ssvc",
|
|
"content": {
|
|
"timestamp": "2024-09-29T13:57:46.692938Z",
|
|
"id": "CVE-2024-46858",
|
|
"options": [
|
|
{
|
|
"Exploitation": "none"
|
|
},
|
|
{
|
|
"Automatable": "no"
|
|
},
|
|
{
|
|
"Technical Impact": "partial"
|
|
}
|
|
],
|
|
"role": "CISA Coordinator",
|
|
"version": "2.0.3"
|
|
}
|
|
}
|
|
}
|
|
],
|
|
"title": "CISA ADP Vulnrichment",
|
|
"providerMetadata": {
|
|
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
|
|
"shortName": "CISA-ADP",
|
|
"dateUpdated": "2024-09-29T13:57:52.178Z"
|
|
}
|
|
},
|
|
{
|
|
"title": "CVE Program Container",
|
|
"references": [
|
|
{
|
|
"url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html"
|
|
},
|
|
{
|
|
"url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
|
|
}
|
|
],
|
|
"providerMetadata": {
|
|
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
|
|
"shortName": "CVE",
|
|
"dateUpdated": "2025-11-03T22:19:44.734Z"
|
|
}
|
|
}
|
|
]
|
|
}
|
|
} |