139 lines
6.3 KiB
JSON
139 lines
6.3 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-2026-44519",
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"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"state": "PUBLISHED",
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"assignerShortName": "GitHub_M",
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"dateReserved": "2026-05-06T18:28:20.888Z",
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"datePublished": "2026-11-06T21:22:27.624Z",
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"dateUpdated": "2026-11-10T20:17:27.818Z"
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},
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"containers": {
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"cna": {
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"title": "liboqs: Missing value barrier in FO implicit rejection path (FrodoKEM, NTRU, and others)",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-385",
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"lang": "en",
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"description": "CWE-385: Covert Timing Channel",
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"type": "CWE"
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}
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]
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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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"attackComplexity": "HIGH",
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"attackVector": "LOCAL",
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"availabilityImpact": "NONE",
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"baseScore": 5.1,
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"baseSeverity": "MEDIUM",
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"confidentialityImpact": "HIGH",
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"integrityImpact": "NONE",
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"privilegesRequired": "NONE",
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"scope": "UNCHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
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"version": "3.1"
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}
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}
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],
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"references": [
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{
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"name": "https://github.com/open-quantum-safe/liboqs/security/advisories/GHSA-5c97-hp95-vg56",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/open-quantum-safe/liboqs/security/advisories/GHSA-5c97-hp95-vg56"
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},
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{
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"name": "https://github.com/open-quantum-safe/liboqs/pull/2431",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/open-quantum-safe/liboqs/pull/2431"
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},
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{
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"name": "https://github.com/open-quantum-safe/liboqs/commit/d95fc734f5de9bdfc80c8c65d8166b30e9cff5cd",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/open-quantum-safe/liboqs/commit/d95fc734f5de9bdfc80c8c65d8166b30e9cff5cd"
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},
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{
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"name": "https://github.com/open-quantum-safe/liboqs/releases/tag/0.16.0",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/open-quantum-safe/liboqs/releases/tag/0.16.0"
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}
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],
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"affected": [
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{
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"vendor": "open-quantum-safe",
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"product": "liboqs",
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"versions": [
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{
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"version": "< 0.16.0",
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"status": "affected"
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}
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]
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}
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],
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"providerMetadata": {
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"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"shortName": "GitHub_M",
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"dateUpdated": "2026-11-06T21:22:27.624Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "liboqs is a C-language cryptographic library that provides implementations of post-quantum cryptography algorithms. Prior to 0.16.0, the ct_select function in src/kem/frodokem/external/util.c for the FrodoKEM-640, FrodoKEM-976, and FrodoKEM-1344 AES and SHAKE reference variants lacks a value barrier in the Fujisaki-Okamoto implicit-rejection path. When compiled with Clang 17 or later at an affected optimization level such as -Os, the compiler can emit a secret-dependent conditional load, causing the real and rejection secret paths to leave distinguishable cache residency after successful and failed decapsulation. A local attacker able to perform repeated cache-timing measurements may use this oracle as part of a private-key recovery attack. Default -O3 builds vectorize both source loads and do not exhibit the reported behavior, and the advisory does not report the same generated memory-access pattern in NTRU, NTRU-Prime, BIKE, HQC, Classic McEliece, Kyber, or the already-barriered ML-KEM implementation. This issue is fixed in version 0.16.0."
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}
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],
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"source": {
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"advisory": "GHSA-5c97-hp95-vg56",
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"discovery": "UNKNOWN"
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}
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},
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"adp": [
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-11-10T20:17:16.621999Z",
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"id": "CVE-2026-44519",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-11-10T20:17:27.818Z"
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}
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}
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]
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}
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} |