156 lines
6.4 KiB
JSON
156 lines
6.4 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.1",
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"cveMetadata": {
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"state": "PUBLISHED",
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"cveId": "CVE-2021-32846",
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"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"assignerShortName": "GitHub_M",
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"dateUpdated": "2025-03-10T21:09:47.105Z",
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"dateReserved": "2021-05-12T00:00:00.000Z",
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"datePublished": "2023-02-17T00:00:00.000Z"
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},
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"containers": {
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"cna": {
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"title": "Moby HyperKit uninitialized memory use in virtio-sock pci_vtsock_proc_tx",
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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": "2023-02-17T00:00:00.000Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "HyperKit is a toolkit for embedding hypervisor capabilities in an application. In versions 0.20210107, function `pci_vtsock_proc_tx` in `virtio-sock` can lead to to uninitialized memory use. In this situation, there is a check for the return value to be less or equal to `VTSOCK_MAXSEGS`, but that check is not sufficient because the function can return `-1` if it finds an error it cannot recover from. Moreover, the negative return value will be used by `iovec_pull` in a while condition that can further lead to more corruption because the function is not designed to handle a negative `iov_len`. This issue may lead to a guest crashing the host causing a denial of service and, under certain circumstance, memory corruption. This issue is fixed in commit af5eba2360a7351c08dfd9767d9be863a50ebaba."
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}
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],
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"affected": [
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{
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"vendor": "moby",
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"product": "hyperkit",
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"versions": [
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{
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"version": "0.20210107",
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"status": "affected",
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"lessThanOrEqual": "0.20210107",
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"versionType": "custom"
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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": "https://securitylab.github.com/advisories/GHSL-2021-054_057-moby-hyperkit/"
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},
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{
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"url": "https://github.com/moby/hyperkit/pull/313"
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},
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{
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"url": "https://github.com/moby/hyperkit/commit/af5eba2360a7351c08dfd9767d9be863a50ebaba"
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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:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H",
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"attackVector": "LOCAL",
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"attackComplexity": "LOW",
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"privilegesRequired": "NONE",
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"userInteraction": "NONE",
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"scope": "UNCHANGED",
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"confidentialityImpact": "NONE",
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"integrityImpact": "HIGH",
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"availabilityImpact": "HIGH",
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"baseScore": 7.7,
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"baseSeverity": "HIGH"
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}
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}
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],
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"problemTypes": [
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{
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"descriptions": [
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{
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"type": "CWE",
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"lang": "en",
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"description": "CWE-908 Use of Uninitialized Resource",
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"cweId": "CWE-908"
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}
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]
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}
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],
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"x_generator": {
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"engine": "Vulnogram 0.0.9"
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},
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"source": {
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"advisory": "GHSL-2021-057",
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"defect": [
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"GHSL-2021-057"
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],
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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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"providerMetadata": {
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"orgId": "af854a3a-2127-422b-91ae-364da2661108",
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"shortName": "CVE",
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"dateUpdated": "2024-08-03T23:33:56.113Z"
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},
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"title": "CVE Program Container",
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"references": [
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{
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"url": "https://securitylab.github.com/advisories/GHSL-2021-054_057-moby-hyperkit/",
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"tags": [
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"x_transferred"
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]
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},
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{
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"url": "https://github.com/moby/hyperkit/pull/313",
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"tags": [
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"x_transferred"
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]
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},
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{
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"url": "https://github.com/moby/hyperkit/commit/af5eba2360a7351c08dfd9767d9be863a50ebaba",
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"tags": [
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"x_transferred"
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]
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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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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2025-03-10T20:57:20.315278Z",
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"id": "CVE-2021-32846",
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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": "2025-03-10T21:09:47.105Z"
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}
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}
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]
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}
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} |