CVE-2022-0847 - Design/Logic Flaw

Immediate

Remediate Within 48 Hours

CVE Information|Basic Analysis|Framework Mapping|Web Framework Mapping|Compliance

CVE Information

Original CVE data

Published: March 10, 2022

Updated: November 7, 2023

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.

CWE: CWE-665

CVSS v27.2

AV:L/AC:L/AU:N/C:C/I:C/A:C

CVSS v37.8

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

References

https://bugzilla.redhat.com/show_bug.cgi?id=2060795

https://dirtypipe.cm4all.com/

http://packetstormsecurity.com/files/166229/Dirty-Pipe-Linux-Privilege-Escalation.html

http://packetstormsecurity.com/files/166230/Dirty-Pipe-SUID-Binary-Hijack-Privilege-Escalation.html

http://packetstormsecurity.com/files/166258/Dirty-Pipe-Local-Privilege-Escalation.html

https://www.suse.com/support/kb/doc/?id=000020603

https://security.netapp.com/advisory/ntap-20220325-0005/

https://cert-portal.siemens.com/productcert/pdf/ssa-222547.pdf

https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2022-0015

Affected Vendors

Fedoraproject - (1)

Linux - (1)

Netapp - (8)

Ovirt - (1)

Redhat - (16)

Siemens - (1)

Sonicwall - (1)

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Basic Analysis

Common vulnerability metrics

Vulnerabilty type as detected by PRIOⁿengine

Design/Logic Flaw

CVSS Scores as calculated by PRIOⁿengine

CVSS v27.2

AV:L/AC:L/AU:N/C:C/I:C/A:C

CVSS v37.8

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

MITRE CWE Top 25

Exploits

Exploits are available either through exploit packs, Github repos or the world wide web in general.

Active Exploitation

Vulnerability is referenced under CISA's Known Exploited Vulnerabilities (KEV) catalog. See the KEV Catalog

Social Network Activity

Threat Actor Activity

No sightings of the vulnerability within threat reports.

Cybersecurity Frameworks

How the vulnerability maps against various cybersecurity frameworks

Compliance Impact

How the submited vulnerability affects compliance

Web Application Security Frameworks

Applicable if the issue likely affects a web application