CVE-2022-0185 (GCVE-0-2022-0185)
Vulnerability from cvelistv5
Published
2022-02-11 17:40
Modified
2025-07-30 01:37
Severity ?
8.4 (High) - CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-190 - Integer Overflow or Wraparound
Summary
A heap-based buffer overflow flaw was found in the way the legacy_parse_param function in the Filesystem Context functionality of the Linux kernel verified the supplied parameters length. An unprivileged (in case of unprivileged user namespaces enabled, otherwise needs namespaced CAP_SYS_ADMIN privilege) local user able to open a filesystem that does not support the Filesystem Context API (and thus fallbacks to legacy handling) could use this flaw to escalate their privileges on the system.
References
Impacted products
Vendor Product Version
n/a kernel Version: 8.4
CISA Known exploited vulnerability
Data from the Known Exploited Vulnerabilities Catalog

Date added: 2024-08-21

Due date: 2024-09-11

Required action: Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.

Used in ransomware: Unknown

Notes: This vulnerability affects a common open-source component, third-party library, or a protocol used by different products. For more information, please see: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=722d94847de2; https://nvd.nist.gov/vuln/detail/CVE-2022-0185

Show details on NVD website

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      "containers": "{\"cna\": {\"affected\": [{\"product\": \"kernel\", \"vendor\": \"n/a\", \"versions\": [{\"status\": \"affected\", \"version\": \"8.4\"}]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"A heap-based buffer overflow flaw was found in the way the legacy_parse_param function in the Filesystem Context functionality of the Linux kernel verified the supplied parameters length. An unprivileged (in case of unprivileged user namespaces enabled, otherwise needs namespaced CAP_SYS_ADMIN privilege) local user able to open a filesystem that does not support the Filesystem Context API (and thus fallbacks to legacy handling) could use this flaw to escalate their privileges on the system.\"}], \"problemTypes\": [{\"descriptions\": [{\"cweId\": \"CWE-190\", \"description\": \"Integer Overflow or Wraparound CWE-190\", \"lang\": \"en\", \"type\": \"CWE\"}]}], \"providerMetadata\": {\"dateUpdated\": \"2022-02-25T09:06:15.000Z\", \"orgId\": \"53f830b8-0a3f-465b-8143-3b8a9948e749\", \"shortName\": \"redhat\"}, \"references\": [{\"tags\": [\"x_refsource_MISC\"], \"url\": \"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=722d94847de2\"}, {\"tags\": [\"x_refsource_MISC\"], \"url\": \"https://github.com/Crusaders-of-Rust/CVE-2022-0185\"}, {\"tags\": [\"x_refsource_MISC\"], \"url\": \"https://www.openwall.com/lists/oss-security/2022/01/18/7\"}, {\"tags\": [\"x_refsource_MISC\"], \"url\": \"https://www.willsroot.io/2022/01/cve-2022-0185.html\"}, {\"tags\": [\"x_refsource_CONFIRM\"], \"url\": \"https://security.netapp.com/advisory/ntap-20220225-0003/\"}]}, \"adp\": [{\"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-02T23:18:42.536Z\"}, \"title\": \"CVE Program Container\", \"references\": [{\"tags\": [\"x_refsource_MISC\", \"x_transferred\"], \"url\": \"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=722d94847de2\"}, {\"tags\": [\"x_refsource_MISC\", \"x_transferred\"], \"url\": \"https://github.com/Crusaders-of-Rust/CVE-2022-0185\"}, {\"tags\": [\"x_refsource_MISC\", \"x_transferred\"], \"url\": \"https://www.openwall.com/lists/oss-security/2022/01/18/7\"}, {\"tags\": [\"x_refsource_MISC\", \"x_transferred\"], \"url\": \"https://www.willsroot.io/2022/01/cve-2022-0185.html\"}, {\"tags\": [\"x_refsource_CONFIRM\", \"x_transferred\"], \"url\": \"https://security.netapp.com/advisory/ntap-20220225-0003/\"}]}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 8.4, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"HIGH\"}}, {\"other\": {\"type\": \"kev\", \"content\": {\"dateAdded\": \"2024-08-21\", \"reference\": \"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-0185\"}}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2022-0185\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"active\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-08-22T12:49:08.646375Z\"}}}], \"affected\": [{\"cpes\": [\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\"], \"vendor\": \"linux\", \"product\": \"linux_kernel\", \"versions\": [{\"status\": \"affected\", \"version\": \"8.4\"}], \"defaultStatus\": \"unknown\"}], \"timeline\": [{\"time\": \"2024-08-21T00:00:00+00:00\", \"lang\": \"en\", \"value\": \"CVE-2022-0185 added to CISA KEV\"}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-08-20T17:28:20.482Z\"}}]}",
      "cveMetadata": "{\"assignerOrgId\": \"53f830b8-0a3f-465b-8143-3b8a9948e749\", \"assignerShortName\": \"redhat\", \"cveId\": \"CVE-2022-0185\", \"datePublished\": \"2022-02-11T17:40:57.000Z\", \"dateReserved\": \"2022-01-11T00:00:00.000Z\", \"dateUpdated\": \"2025-07-30T01:37:48.126Z\", \"state\": \"PUBLISHED\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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