Skip to main content
ExploitedIn CISA KEVFix available

CVE-2022-0847

Exploitation confirmed. First attested on 2022-04-25 by CISA-ADP, CISA KEV, GCVE · kevintel.

  • Published2022-03-10
  • Fixed in5.16.11 · 5.15.25 · 5.10.102
  • WeaknessCWE-665

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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.

Timeline

dates in UTC
  1. 2022-03-08Exploit-DB entryExploit-DB
  2. 2022-03-1017:44CVE publishedNVD
  3. 2022-04-25Added to the CISA KEV catalogCISA KEV
  4. 2022-04-25Listed as exploited by GCVEGCVE
  5. 2022-04-25Exploitation first reportedCISA KEV
  6. 2025-02-0418:38SSVC exploitation set to activeCISA-ADP

Observed activity

isMalicious corpus · updated 2026-11-03 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2022-0847?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2022-0847?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Linux linux kernel
BranchAffectedFixed in
5.16≥ 5.16, < 5.16.115.16.11
5.15≥ 5.15, < 5.15.255.15.25
5.x≥ 5.8, < 5.10.1025.10.102
Redhat enterprise linux server for power little endian update services for sap solutions
BranchAffectedFixed in
8.1= 8.1no fix published
8.2= 8.2no fix published
8.4= 8.4no fix published
Redhat enterprise linux server update services for sap solutions
BranchAffectedFixed in
8.1= 8.1no fix published
8.2= 8.2no fix published
8.4= 8.4no fix published

26 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As redhat, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • kernel
    Affected
    • = Linux Kernel 5.17 rc6no fix stated

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2024-01-12

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • :linux_kernel:Androidfrom :0 · fixed in :2022-05-05
  • dtb-aarch64openSUSE:Leap 15.3all versions · fixed in 5.3.18-150300.59.54.1and 11 other packages
  • kernelTuxCare:CentOS:8.5all versions · fixed in 4.18.0-348.7.1.el8_5.tuxcare.els3and 21 other packages
  • kernelTuxCare:CentOS:8.4all versions · fixed in 4.18.0-305.25.1.el8_4.tuxcare.els3and 21 other packages
  • kernelRocky Linux:8all versions · fixed in 0:4.18.0-348.20.1.el8_5
  • kernelRed Hat:rhel_eus:8.4::baseosall versions · fixed in 0:4.18.0-305.40.2.el8_4and 32 other packages
  • kernelRed Hat:rhel_eus:8.2::baseosall versions · fixed in 0:4.18.0-193.79.1.el8_2and 32 other packages
  • kernelRed Hat:rhel_e4s:8.1::baseosall versions · fixed in 0:4.18.0-147.64.1.el8_1and 24 other packages

110 more package ranges on OSV.dev

Vendor advisories

  • CVE-2022-0847 Red Hat Product Security499 products fixed

    kernel: improper initialization of the "flags" member of the new pipe_buffer

  • SSA-202008 Siemens ProductCERT11 known affected

    SSA-202008: Multiple Vulnerabilities in Ruggedcom Rox Before V2.17.0

    RUGGEDCOM ROX MX5000 · RUGGEDCOM ROX MX5000RE · RUGGEDCOM ROX RX1400 · +8 more

  • ICSA-22-167-09 CISA1 known affected

    Siemens SCALANCE LPE9403 Third-Party Vulnerabilities

    SCALANCE LPE9403

  • SSA-222547 Siemens ProductCERT1 known affected

    SSA-222547: Third-Party Component Vulnerabilities in SCALANCE LPE9403 before V2.0

    SCALANCE LPE9403

  • RHSA-2022:0841 Red Hat Product Security2 products fixed

    Red Hat Security Advisory: Red Hat Virtualization Host security and bug fix update [ovirt-4.4.10] Async #1

  • RHSA-2022:0831 Red Hat Product Security120 products fixed

    Red Hat Security Advisory: kernel security update

6 more advisories

Full record on NVD

Fix

  1. Update Linux linux kernel to 5.16.11 · 5.15.25 · 5.10.102
  2. CISA’s required action: Apply updates per vendor instructions.due 2022-05-16
  3. Vendor fix Siemens ProductCERT SSA-202008 · 11 productsUpdate to V2.17.0 or later version
  4. Vendor fix Siemens ProductCERT SSA-222547 · 1 productUpdate to V2.0 or later version
  5. Vendor fix CISA ICSA-22-167-09 · 1 productUpdate to V2.0 or later version
  6. Vendor fix Red Hat Product Security RHSA-2022:0841 · 2 productsFor details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/2974891
  7. Vendor fix Red Hat Product Security RHSA-2022:0831 · 120 productsFor details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect.
  8. Workaround from the vendor Red Hat Product Security RHSA-2022:0841 · 6 productsCurrently there is no mitigation available for this flaw. Customers should update to fixed packages, once they are available.

Advisories and patches

Detection

read 2026-11-03 22:42 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
EDB-50808
Exploit-DB
Proof-of-concept repositories
20 repositories, unverifiedbbaranoff/CVE-2022-0847xndpxs/CVE-2022-0847r1is/CVE-2022-0847Arinerron/CVE-2022-0847-DirtyPipe-Exploitcrowsec-edtech/Dirty-Pipe
PoC-in-GitHub
Metasploit modules
1 moduleexploit/linux/local/cve_2022_0847_dirtypiperank: excellentModule metadata: Metasploit Framework, © Rapid7, Inc., BSD-3-Clause.
Metasploit Framework

CISA Known Exploited Vulnerability

Date Added
2022-04-25
Patch Due Date
2022-05-16
Ransomware Use
Unknown
Required Action
Apply updates per vendor instructions.

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
2022-03-10
Last Modified
2026-06-17
NVD status
Analyzed

Frequently asked questions

What is CVE-2022-0847?

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.

Is CVE-2022-0847 actively exploited?

Yes. CVE-2022-0847 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2022-05-16.

What is the CVSS score for CVE-2022-0847?

CVE-2022-0847 has a CVSS v3 base score of 7.8 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Running Linux kernel? Hear about its next vulnerability

Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».

Get alerts for this productCISA KEV additions, April 2022Search CVEs

No credit card required · No monthly cap on website lookups · 250 API requests/month

Go further

Related vulnerabilities

Same product first, then the same vendor advisory and the same publication week.

Back to CVE Database

Sources for this record