CVE-2022-0847 : faille exploitée linux linux kernel (CVSS 7.8)

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.

Sévérité

Élevée (CVSS 7.8)

Vecteur CVSS

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitation active

Oui, inscrite au catalogue CISA KEV

Publication

10 mars 2022

Dernière mise à jour

17 juin 2026

• linux linux kernel
• fedoraproject fedora
• redhat enterprise linux
• redhat enterprise linux eus
• redhat enterprise linux for ibm z systems
• redhat enterprise linux for ibm z systems eus
• redhat enterprise linux for power little endian
• redhat enterprise linux for power little endian eus
• redhat enterprise linux for real time
• redhat enterprise linux for real time for nfv
• redhat enterprise linux for real time for nfv tus
• redhat enterprise linux for real time tus
• redhat enterprise linux server aus
• redhat enterprise linux server for power little endian update services for sap solutions
• redhat enterprise linux server tus
• redhat enterprise linux server update services for sap solutions
• redhat codeready linux builder
• redhat virtualization host
• ovirt ovirt-engine
• netapp h300s firmware

Apply updates per vendor instructions.

• Fiche CVE-2022-0847 sur le NVD (NIST)
• packetstormsecurity.com/files/166229/Dirty…
• packetstormsecurity.com/files/166230/Dirty…
• packetstormsecurity.com/files/166258/Dirty…
• packetstormsecurity.com/files/176534/Linux…
• bugzilla.redhat.com/show_bug.cgi
• cert-portal.siemens.com/productcert/pdf/ssa-222547.pdf
• dirtypipe.cm4all.com/
• psirt.global.sonicwall.com/vuln-detail/SNWLID-2022-0015
• security.netapp.com/advisory/ntap-20220325-0005/
• suse.com/support/kb/doc/
• cisa.gov/known-exploited-vulnerabilities-catalog