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145 lines
4.1 KiB
JSON
145 lines
4.1 KiB
JSON
{
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"id": "CVE-2021-33624",
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"sourceIdentifier": "cve@mitre.org",
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"published": "2021-06-23T16:15:07.957",
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"lastModified": "2021-11-12T20:15:15.803",
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"vulnStatus": "Analyzed",
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"descriptions": [
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{
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"lang": "en",
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"value": "In kernel/bpf/verifier.c in the Linux kernel before 5.12.13, a branch can be mispredicted (e.g., because of type confusion) and consequently an unprivileged BPF program can read arbitrary memory locations via a side-channel attack, aka CID-9183671af6db."
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},
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{
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"lang": "es",
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"value": "En el archivo kernel/bpf/verifier.c en el kernel de Linux versiones anteriores a 5.12.13, una rama puede ser mal predicha (por ejemplo, debido a la confusi\u00f3n de tipos) y, en consecuencia, un programa BPF no privilegiado puede leer ubicaciones de memoria arbitrarias por medio de un ataque de canal lateral, tambi\u00e9n conocido como CID-9183671af6db"
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}
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],
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"metrics": {
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"cvssMetricV31": [
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{
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"source": "nvd@nist.gov",
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"type": "Primary",
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"cvssData": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N",
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"attackVector": "LOCAL",
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"attackComplexity": "HIGH",
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"privilegesRequired": "LOW",
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"userInteraction": "NONE",
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"scope": "UNCHANGED",
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"confidentialityImpact": "HIGH",
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"integrityImpact": "NONE",
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"availabilityImpact": "NONE",
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"baseScore": 4.7,
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"baseSeverity": "MEDIUM"
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},
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"exploitabilityScore": 1.0,
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"impactScore": 3.6
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}
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],
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"cvssMetricV2": [
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{
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"source": "nvd@nist.gov",
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"type": "Primary",
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"cvssData": {
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"version": "2.0",
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"vectorString": "AV:L/AC:M/Au:N/C:C/I:N/A:N",
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"accessVector": "LOCAL",
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"accessComplexity": "MEDIUM",
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"authentication": "NONE",
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"confidentialityImpact": "COMPLETE",
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"integrityImpact": "NONE",
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"availabilityImpact": "NONE",
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"baseScore": 4.7
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},
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"baseSeverity": "MEDIUM",
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"exploitabilityScore": 3.4,
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"impactScore": 6.9,
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"acInsufInfo": false,
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"obtainAllPrivilege": false,
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"obtainUserPrivilege": false,
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"obtainOtherPrivilege": false,
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"userInteractionRequired": false
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}
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]
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},
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"weaknesses": [
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{
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"source": "nvd@nist.gov",
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"type": "Primary",
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"description": [
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{
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"lang": "en",
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"value": "CWE-203"
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}
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]
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}
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],
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"configurations": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionEndExcluding": "5.12.13",
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"matchCriteriaId": "4C096241-6457-4DB4-80C3-DD650F628184"
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},
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{
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"nodes": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
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"matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252"
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]
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}
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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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"url": "http://www.openwall.com/lists/oss-security/2021/06/21/1",
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"source": "cve@mitre.org",
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"tags": [
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"Mailing List",
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"Exploit",
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"Third Party Advisory"
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]
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},
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{
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"url": "https://github.com/torvalds/linux/commit/9183671af6dbf60a1219371d4ed73e23f43b49db",
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"source": "cve@mitre.org",
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"tags": [
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"Patch",
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"Third Party Advisory"
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]
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},
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{
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"url": "https://lists.debian.org/debian-lts-announce/2021/10/msg00010.html",
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"source": "cve@mitre.org",
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"tags": [
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"Issue Tracking",
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"Third Party Advisory"
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]
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},
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{
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"url": "https://www.usenix.org/conference/usenixsecurity21/presentation/kirzner",
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"source": "cve@mitre.org",
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"tags": [
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"Third Party Advisory"
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]
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}
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]
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} |