CVE-2022-0847
critical-risk
Published 2022-03-10
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.
Do I need to act?
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81.6% chance of exploitation in next 30 days
EPSS score — higher than 18% of all CVEs
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CISA KEV: actively exploited in the wild
On the Known Exploited Vulnerabilities catalog — federal agencies must patch
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1 public exploit available
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.8/10
High
LOCAL
/ LOW complexity
Affected Products (20)
References (21)
Third Party Advisory
http://packetstormsecurity.com/files/176534/Linux-4.20-KTLS-Read-Only-Write.html
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2060795
Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-222547.pdf
Exploit
https://dirtypipe.cm4all.com/
Third Party Advisory
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2022-0015
Third Party Advisory
https://security.netapp.com/advisory/ntap-20220325-0005/
Third Party Advisory
https://www.suse.com/support/kb/doc/?id=000020603
Third Party Advisory
http://packetstormsecurity.com/files/176534/Linux-4.20-KTLS-Read-Only-Write.html
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2060795
Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-222547.pdf
Exploit
https://dirtypipe.cm4all.com/
Third Party Advisory
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2022-0015
Third Party Advisory
https://security.netapp.com/advisory/ntap-20220325-0005/
Third Party Advisory
https://www.suse.com/support/kb/doc/?id=000020603
and 1 more references
75
/ 100
critical-risk
Severity
24/34 · High
Exploitability
27/34 · High
Exposure
24/34 · High