CVE-2022-0847

Confirmed PUBLISHED

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...

Linux · kernel
Exploited in the wild PoC available

Recommended Action

Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.

Confidence
Confirmed
Exploitation Status
Exploited in the wild
Observed in Sensors
No
Attempts (30d)
Unique Attacker IPs
CISA KEV
In CISA KEV
CVSS / EPSS
7.8 High

At a Glance

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.

metasploit cisa linux
CVE Published
Mar 07, 2022
Exploitation Reported
Apr 25, 2022
CVSS
7.8 High
EPSS
Low complexity No user interaction

Affected Versions

Vendor Product Version Status
n/a
kernel

Linux Kernel 5.17 rc6

Affected

CVE References

Show 5 more references

Recommended Actions

  • Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
  • Check enrichment artifacts for scanner coverage and available PoCs before rolling remediation validation.
  • Use the Pro API to automate enrichment, telemetry, and workflow delivery for VM, SOC, and CTI pipelines.