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CVE-2022-2327

Use-after-free in io_uring ad work_flags in Linux Kernel

Published: Jul 22, 2022Updated: Nov 21, 2024 Sources: CVE List NVD BDU csafCWE-416
7.5HIGH
NVD MITRE
EPSS Score
0.3%
Top 83.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

io_uring use work_flags to determine which identity need to grab from the calling process to make sure it is consistent with the calling process when executing IORING_OP. Some operations are missing some types, which can lead to incorrect reference counts which can then lead to a double free. We recommend upgrading the kernel past commit df3f3bb5059d20ef094d6b2f0256c4bf4127a859

No summary for this CVE yet.

CVSS Vector Breakdown

AV:LAC:HPR:LUI:NS:CC:HI:HA:N
Exploitability
AV:LAttack Vector
Local
AC:HAttack Complexity
High
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-416CWE-415

Affected Products

Linux KernelLinux Kernel
On-prem
Operating Systems / linux-distro
Astra Linux Special Edition для «Эльбрус»ООО «РусБИТех-Астра»
On-premOS
Operating Systems / linux-distro
Debian GNU/LinuxСообщество свободного программного обеспечения
On-premOS
Operating Systems / linux-distro
LinuxСообщество свободного программного обеспечения
On-premOS
Operating Systems / linux-distro
linux kernellinux
On-premOS
Operating Systems
linux kerneloss-projectOperating Systemsaka linux, linux-kernel
ооо «русбитех-астра»commercialRUOperating Systemsaka rusbitech-astra
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf
linuxoss-projectOperating Systemsaka the linux kernel

Exploitability

Official Patch Available
Workaround Available
No detection template yetWe can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.10.y&id=df3f3bb5059d20ef094d6b2f0256c4bf4127a859
git.kernel.org
https://kernel.dance/#df3f3bb5059d20ef094d6b2f0256c4bf4127a859
kernel.dance
https://security.netapp.com/advisory/ntap-20230203-0009/
security.netapp.com
and 18 more references View all →

Timeline

Published
Jul 22, 2022
Last Updated
Nov 21, 2024

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