A flaw was found in the way the "flags" member...
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2060795
- https://dirtypipe.cm4all.com/
- http://packetstormsecurity.com/files/166230/Dirty-Pipe-SUID-Binary-Hijack-Privilege-Escalation.html
- http://packetstormsecurity.com/files/166229/Dirty-Pipe-Linux-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
- http://packetstormsecurity.com/files/176534/Linux-4.20-KTLS-Read-Only-Write.html
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Timeline
CVSS Vectors
Weaknesses (CWE)
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.