{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-48711","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-06-20T11:09:39.049Z","datePublished":"2024-06-20T11:13:06.050Z","dateUpdated":"2026-08-05T08:51:52.646Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-08-05T08:51:52.646Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ntipc: improve size validations for received domain records\n\nThe function tipc_mon_rcv() allows a node to receive and process\ndomain_record structs from peer nodes to track their views of the\nnetwork topology.\n\nThis patch verifies that the number of members in a received domain\nrecord does not exceed the limit defined by MAX_MON_DOMAIN, something\nthat may otherwise lead to a stack overflow.\n\ntipc_mon_rcv() is called from the function tipc_link_proto_rcv(), where\nwe are reading a 32 bit message data length field into a uint16.  To\navert any risk of bit overflow, we add an extra sanity check for this in\nthat function.  We cannot see that happen with the current code, but\nfuture designers being unaware of this risk, may introduce it by\nallowing delivery of very large (> 64k) sk buffers from the bearer\nlayer.  This potential problem was identified by Eric Dumazet.\n\nThis fixes CVE-2022-0435"}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":9.8,"baseSeverity":"CRITICAL"},"scenarios":[{"lang":"en","value":"AV:N - The bug is reached by processing received TIPC LINK_PROTOCOL/STATE_MSG packets on an enabled bearer (Ethernet, InfiniBand, or UDP/6118) via tipc_rcv → tipc_link_proto_rcv → tipc_mon_rcv, so a remote peer can trigger it over the network.\nAC:L - The attacker fully controls discovery, link establishment, and the two crafted domain records that trigger the overflow; researchers describe exploitation as trivial and reliable with no race or victim-state dependency.\nPR:N - Default TIPC has no authentication for peer join (crypto is optional); an unauthenticated attacker who can reach the bearer and match the cluster net_id (default 4711) can establish a link and send the malicious STATE_MSG.\nUI:N - Exploitation requires only sending TIPC protocol packets to a system with an active bearer; no victim user action is needed.\nS:U - Successful exploitation compromises the local kernel on the same host; it does not cross a VM, IOMMU, or other separate security authority boundary.\nC:H - Attacker-controlled stack overflow can hijack kernel control flow and yield arbitrary kernel read primitives, enabling full confidentiality loss.\nI:H - The overflow overwrites stack contents including saved registers and the return address with attacker-controlled payload, enabling control-flow hijacking and arbitrary code execution in kernel context.\nA:H - Triggering the overflow causes kernel panic/oops (including under stack canary or FORTIFY_SOURCE), resulting in complete denial of service."}]}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/tipc/link.c","net/tipc/monitor.c"],"versions":[{"version":"35c55c9877f8de0ab129fa1a309271d0ecc868b9","lessThan":"175db196e45d6f0e6047eccd09c8ba55465eb131","status":"affected","versionType":"git"},{"version":"35c55c9877f8de0ab129fa1a309271d0ecc868b9","lessThan":"fde4ddeadd099bf9fbb9ccbee8e1b5c20d530a2d","status":"affected","versionType":"git"},{"version":"35c55c9877f8de0ab129fa1a309271d0ecc868b9","lessThan":"f1af11edd08dd8376f7a84487cbb0ea8203e3a1d","status":"affected","versionType":"git"},{"version":"35c55c9877f8de0ab129fa1a309271d0ecc868b9","lessThan":"d692e3406e052dbf9f6d9da0cba36cb763272529","status":"affected","versionType":"git"},{"version":"35c55c9877f8de0ab129fa1a309271d0ecc868b9","lessThan":"3c7e5943553594f68bbc070683db6bb6f6e9e78e","status":"affected","versionType":"git"},{"version":"35c55c9877f8de0ab129fa1a309271d0ecc868b9","lessThan":"1f1788616157b0222b0c2153828b475d95e374a7","status":"affected","versionType":"git"},{"version":"35c55c9877f8de0ab129fa1a309271d0ecc868b9","lessThan":"59ff7514f8c56f166aadca49bcecfa028e0ad50f","status":"affected","versionType":"git"},{"version":"35c55c9877f8de0ab129fa1a309271d0ecc868b9","lessThan":"9aa422ad326634b76309e8ff342c246800621216","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/tipc/link.c","net/tipc/monitor.c"],"versions":[{"version":"4.8","status":"affected"},{"version":"0","lessThan":"4.8","status":"unaffected","versionType":"semver"},{"version":"4.9.301","lessThanOrEqual":"4.9.*","status":"unaffected","versionType":"semver"},{"version":"4.14.266","lessThanOrEqual":"4.14.*","status":"unaffected","versionType":"semver"},{"version":"4.19.229","lessThanOrEqual":"4.19.*","status":"unaffected","versionType":"semver"},{"version":"5.4.179","lessThanOrEqual":"5.4.*","status":"unaffected","versionType":"semver"},{"version":"5.10.100","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.23","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"5.16.9","lessThanOrEqual":"5.16.*","status":"unaffected","versionType":"semver"},{"version":"5.17","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":"4.8","versionEndExcluding":"4.9.301"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.8","versionEndExcluding":"4.14.266"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.8","versionEndExcluding":"4.19.229"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.8","versionEndExcluding":"5.4.179"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.8","versionEndExcluding":"5.10.100"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.8","versionEndExcluding":"5.15.23"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.8","versionEndExcluding":"5.16.9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.8","versionEndExcluding":"5.17"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/175db196e45d6f0e6047eccd09c8ba55465eb131"},{"url":"https://git.kernel.org/stable/c/fde4ddeadd099bf9fbb9ccbee8e1b5c20d530a2d"},{"url":"https://git.kernel.org/stable/c/f1af11edd08dd8376f7a84487cbb0ea8203e3a1d"},{"url":"https://git.kernel.org/stable/c/d692e3406e052dbf9f6d9da0cba36cb763272529"},{"url":"https://git.kernel.org/stable/c/3c7e5943553594f68bbc070683db6bb6f6e9e78e"},{"url":"https://git.kernel.org/stable/c/1f1788616157b0222b0c2153828b475d95e374a7"},{"url":"https://git.kernel.org/stable/c/59ff7514f8c56f166aadca49bcecfa028e0ad50f"},{"url":"https://git.kernel.org/stable/c/9aa422ad326634b76309e8ff342c246800621216"}],"title":"tipc: 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