cve-2021-46923
Vulnerability from cvelistv5
Published
2024-02-27 09:43
Modified
2024-11-04 11:55
Severity ?
EPSS score ?
Summary
fs/mount_setattr: always cleanup mount_kattr
References
{ "containers": { "adp": [ { "metrics": [ { "other": { "content": { "id": "CVE-2021-46923", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "timestamp": "2024-03-05T16:15:38.368509Z", "version": "2.0.3" }, "type": "ssvc" } } ], "providerMetadata": { "dateUpdated": "2024-07-05T17:22:08.089Z", "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP" }, "title": "CISA ADP Vulnrichment" }, { "providerMetadata": { "dateUpdated": "2024-08-04T05:17:43.009Z", "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE" }, "references": [ { "tags": [ "x_transferred" ], "url": "https://git.kernel.org/stable/c/47b5d0a7532d39e42a938f81e3904268145c341d" }, { "tags": [ "x_transferred" ], "url": "https://git.kernel.org/stable/c/012e332286e2bb9f6ac77d195f17e74b2963d663" } ], "title": "CVE Program Container" } ], "cna": { "affected": [ { "defaultStatus": "unaffected", "product": "Linux", "programFiles": [ "fs/namespace.c" ], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [ { "lessThan": "47b5d0a7532d", "status": "affected", "version": "9caccd41541a", "versionType": "git" }, { "lessThan": "012e332286e2", "status": "affected", "version": "9caccd41541a", "versionType": "git" } ] }, { "defaultStatus": "affected", "product": "Linux", "programFiles": [ "fs/namespace.c" ], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [ { "status": "affected", "version": "5.12" }, { "lessThan": "5.12", "status": "unaffected", "version": "0", "versionType": "semver" }, { "lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.13", "versionType": "semver" }, { "lessThanOrEqual": "*", "status": "unaffected", "version": "5.16", "versionType": "original_commit_for_fix" } ] } ], "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs/mount_setattr: always cleanup mount_kattr\n\nMake sure that finish_mount_kattr() is called after mount_kattr was\nsuccesfully built in both the success and failure case to prevent\nleaking any references we took when we built it. We returned early if\npath lookup failed thereby risking to leak an additional reference we\ntook when building mount_kattr when an idmapped mount was requested." } ], "providerMetadata": { "dateUpdated": "2024-11-04T11:55:58.884Z", "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux" }, "references": [ { "url": "https://git.kernel.org/stable/c/47b5d0a7532d39e42a938f81e3904268145c341d" }, { "url": "https://git.kernel.org/stable/c/012e332286e2bb9f6ac77d195f17e74b2963d663" } ], "title": "fs/mount_setattr: always cleanup mount_kattr", "x_generator": { "engine": "bippy-9e1c9544281a" } } }, "cveMetadata": { "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "assignerShortName": "Linux", "cveId": "CVE-2021-46923", "datePublished": "2024-02-27T09:43:54.159Z", "dateReserved": "2024-02-25T13:45:52.719Z", "dateUpdated": "2024-11-04T11:55:58.884Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1", "meta": { "nvd": "{\"cve\":{\"id\":\"CVE-2021-46923\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-02-27T10:15:07.100\",\"lastModified\":\"2024-04-10T15:25:34.540\",\"vulnStatus\":\"Analyzed\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nfs/mount_setattr: always cleanup mount_kattr\\n\\nMake sure that finish_mount_kattr() is called after mount_kattr was\\nsuccesfully built in both the success and failure case to prevent\\nleaking any references we took when we built it. We returned early if\\npath lookup failed thereby risking to leak an additional reference we\\ntook when building mount_kattr when an idmapped mount was requested.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: fs/mount_setattr: limpiar siempre mount_kattr. Aseg\u00farese de que se llame a finish_mount_kattr() despu\u00e9s de que mount_kattr se haya compilado con \u00e9xito tanto en el caso de \u00e9xito como en el de fracaso para evitar que se filtren las referencias que tomamos cuando lo compilamos. Regresamos temprano si falla la b\u00fasqueda de ruta, por lo que corremos el riesgo de filtrar una referencia adicional que tomamos al compilar mount_kattr cuando se solicit\u00f3 un montaje con idmapped.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-668\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.12.0\",\"versionEndExcluding\":\"5.15.13\",\"matchCriteriaId\":\"9E1109BB-1C98-497B-8CBA-EA69276884AD\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/012e332286e2bb9f6ac77d195f17e74b2963d663\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/47b5d0a7532d39e42a938f81e3904268145c341d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}" } }
Loading...
Loading...
Sightings
Author | Source | Type | Date |
---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.