CVE-2022-0847 (GCVE-0-2022-0847)

Vulnerability from cvelistv5 – Published: 2022-03-07 00:00 – Updated: 2025-10-21 23:15
VLAI CISA KEV
Summary
A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe and push_pipe functions in the Linux kernel and could thus contain stale values. An unprivileged local user could use this flaw to write to pages in the page cache backed by read only files and as such escalate their privileges on the system.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: active Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
n/a kernel Affected: Linux Kernel 5.17 rc6
CISA KEV
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: df282871-b9b2-49f3-bfe2-fb77ae3083f4

Vulnerability ID: CVE-2022-0847

Status: Confirmed

Status Updated: 2022-04-25 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2022-04-25
Asserted: 2022-04-25
Scope
Notes: KEV entry: Linux Kernel Privilege Escalation Vulnerability | Affected: Linux / Kernel | Description: Linux kernel contains an improper initialization vulnerability where an unprivileged local user could escalate their privileges on the system. This vulnerability has the moniker of "Dirty Pipe." | Required action: Apply updates per vendor instructions. | Due date: 2022-05-16 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://nvd.nist.gov/vuln/detail/CVE-2022-0847
Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details
Cwes CWE-665
Feed CISA Known Exploited Vulnerabilities Catalog
Product Kernel
Due Date 2022-05-16
Date Added 2022-04-25
Vendorproject Linux
Vulnerabilityname Linux Kernel Privilege Escalation Vulnerability
Knownransomwarecampaignuse Unknown
References
Created: 2026-02-02 12:27 UTC | Updated: 2026-02-06 07:17 UTC
Show details on NVD website
To clipboard 

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      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://bugzilla.redhat.com/show_bug.cgi?id=2060795\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://dirtypipe.cm4all.com/\", \"tags\": [\"x_transferred\"]}, {\"url\": \"http://packetstormsecurity.com/files/166230/Dirty-Pipe-SUID-Binary-Hijack-Privilege-Escalation.html\", \"tags\": [\"x_transferred\"]}, {\"url\": \"http://packetstormsecurity.com/files/166229/Dirty-Pipe-Linux-Privilege-Escalation.html\", \"tags\": [\"x_transferred\"]}, {\"url\": \"http://packetstormsecurity.com/files/166258/Dirty-Pipe-Local-Privilege-Escalation.html\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://www.suse.com/support/kb/doc/?id=000020603\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://security.netapp.com/advisory/ntap-20220325-0005/\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://cert-portal.siemens.com/productcert/pdf/ssa-222547.pdf\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2022-0015\", \"tags\": [\"x_transferred\"]}, {\"url\": \"http://packetstormsecurity.com/files/176534/Linux-4.20-KTLS-Read-Only-Write.html\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-02T23:40:04.513Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 7.8, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"HIGH\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2022-0847\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"active\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-02-04T18:38:16.058756Z\"}}}, {\"other\": {\"type\": \"kev\", \"content\": {\"dateAdded\": \"2022-04-25\", \"reference\": \"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-0847\"}}}], \"timeline\": [{\"lang\": \"en\", \"time\": \"2022-04-25T00:00:00.000Z\", \"value\": \"CVE-2022-0847 added to CISA KEV\"}], \"references\": [{\"url\": \"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-0847\", \"tags\": [\"government-resource\"]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-02-04T18:38:27.754Z\"}}], \"cna\": {\"affected\": [{\"vendor\": \"n/a\", \"product\": \"kernel\", \"versions\": [{\"status\": \"affected\", \"version\": \"Linux Kernel 5.17 rc6\"}]}], \"references\": [{\"url\": \"https://bugzilla.redhat.com/show_bug.cgi?id=2060795\"}, {\"url\": \"https://dirtypipe.cm4all.com/\"}, {\"url\": \"http://packetstormsecurity.com/files/166230/Dirty-Pipe-SUID-Binary-Hijack-Privilege-Escalation.html\"}, {\"url\": \"http://packetstormsecurity.com/files/166229/Dirty-Pipe-Linux-Privilege-Escalation.html\"}, {\"url\": \"http://packetstormsecurity.com/files/166258/Dirty-Pipe-Local-Privilege-Escalation.html\"}, {\"url\": \"https://www.suse.com/support/kb/doc/?id=000020603\"}, {\"url\": \"https://security.netapp.com/advisory/ntap-20220325-0005/\"}, {\"url\": \"https://cert-portal.siemens.com/productcert/pdf/ssa-222547.pdf\"}, {\"url\": \"https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2022-0015\"}, {\"url\": \"http://packetstormsecurity.com/files/176534/Linux-4.20-KTLS-Read-Only-Write.html\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"A flaw was found in the way the \\\"flags\\\" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe and push_pipe functions in the Linux kernel and could thus contain stale values. An unprivileged local user could use this flaw to write to pages in the page cache backed by read only files and as such escalate their privileges on the system.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-665\", \"description\": \"CWE-665-\u003eCWE-281\"}]}], \"providerMetadata\": {\"orgId\": \"53f830b8-0a3f-465b-8143-3b8a9948e749\", \"shortName\": \"redhat\", \"dateUpdated\": \"2024-01-12T16:06:14.073Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2022-0847\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-10-21T23:15:44.668Z\", \"dateReserved\": \"2022-03-03T00:00:00.000Z\", \"assignerOrgId\": \"53f830b8-0a3f-465b-8143-3b8a9948e749\", \"datePublished\": \"2022-03-07T00:00:00.000Z\", \"assignerShortName\": \"redhat\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.