CVE-2022-0847
Linux Kernel Privilege Escalation Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.
Required action
Apply updates per vendor instructions.
CISA notes
https://nvd.nist.gov/vuln/detail/CVE-2022-0847
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.
Severity
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HAffected Products
| Vendor | Product | Affected versions |
|---|---|---|
| - | kernel | Linux Kernel 5.17 rc6 |
References
10 Links- 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
Record Details
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