237 lines
12 KiB
JSON
237 lines
12 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-46085",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2026-05-13T15:03:33.096Z",
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"datePublished": "2026-05-27T12:58:27.125Z",
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"dateUpdated": "2026-08-05T12:29:33.154Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-08-05T12:29:33.154Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nrxrpc: Fix rxkad crypto unalignment handling\n\nFix handling of a packet with a misaligned crypto length. Also handle\nnon-ENOMEM errors from decryption by aborting. Further, remove the\nWARN_ON_ONCE() so that it can't be remotely triggered (a trace line can\nstill be emitted)."
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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"baseScore": 7.5,
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"baseSeverity": "HIGH"
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},
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"scenarios": [
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{
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"lang": "en",
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"value": "AV:N - rxrpc is the UDP-based AFS RPC protocol; the vulnerable code processes DATA packets received from a remote network peer, and AFS cells routinely traverse the internet.\nAC:L - The attacker fully controls the DATA payload length (UDP datagram size minus headers) and can reliably set it to a non-multiple of 8; the rxkad checksum does not cover the data length, so the misaligned packet reliably reaches the crypto path.\nPR:N - An on-path attacker modifying an in-flight packet, or a malicious server the victim client connects to, needs no credentials or privileges on the target system since the 16-bit checksum gate is independent of the data length.\nUI:N - Received DATA packets are decrypted/verified automatically during normal call processing; tampering with packets of an existing connection requires no victim action.\nS:U - The triggered WARN/panic is contained within the kernel's own security authority and crosses no privilege or virtualization boundary.\nC:N - The bug only causes a crypto error path to WARN; no kernel memory is read or disclosed to the remote attacker.\nI:N - No memory is corrupted or modified—the misaligned length is rejected by the cipher, so there is no write primitive or data tampering.\nA:H - The remotely-triggerable WARN_ON_ONCE causes a kernel panic on the common panic_on_warn configuration, yielding a full denial of service."
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}
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]
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}
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],
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"include/trace/events/rxrpc.h",
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"net/rxrpc/rxkad.c"
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{
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"include/trace/events/rxrpc.h",
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"net/rxrpc/rxkad.c"
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],
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{
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"version": "0",
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},
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},
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{
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},
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{
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"version": "7.1",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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]
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/f1c6bd0cc786a8fa74829ce3c4b3673944a308f4"
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{
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{
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"url": "https://git.kernel.org/stable/c/def304aae2edf321d2671fd6ca766a93c21f877e"
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}
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],
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"title": "rxrpc: Fix rxkad crypto unalignment handling",
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