PT-2022-1369 · Linux+2 · Linux Kernel+2

Kyle Zeng · Published 2021-05-19 · Updated 2025-02-13 · CVE-2022-1786

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A use-after-free flaw was found in the Linux kernel’s io uring subsystem, allowing a local user to crash or escalate their privileges on the system. This issue is related to the way a user sets up a ring with IORING SETUP IOPOLL with more than one task completing submissions on this ring. The flaw can be exploited due to a race condition, potentially leading to local escalation of privileges without requiring additional execution privileges or user interaction.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Type Confusion

Use After Free

Weakness Enumeration

CWE-843

CWE-416

Related Identifiers

ALT-PU-2021-1833

ALT-PU-2021-1888

ALT-PU-2021-1896

ALT-PU-2021-1983

ALT-PU-2021-3481

ALT-PU-2022-1240

ALT-PU-2022-1419

ALT-PU-2022-1421

ALT-PU-2023-1814

ASB-A-230867044

ASB-A-233078742

BDU:2022-03703

CVE-2022-1786

DSA-5161-1

OESA-2022-1714

Affected Products

Alt Linux

Astra Linux

Linux Kernel

References · 47

• https://nvd.nist.gov/vuln/detail/CVE-2022-1786 · Security Note
• https://wiki.astralinux.ru/astra-linux-se47-bulletin-2022-1121SE47 · Vendor Advisory
• https://osv.dev/vulnerability/DSA-5161-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-1786 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2022-1786 · Security Note
• https://osv.dev/vulnerability/ASB-A-233078742 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-1972 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2022-1786 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-1786 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-1974 · Security Note
• https://debian.org/security/2022/dsa-5161 · Vendor Advisory
• https://osv.dev/vulnerability/ASB-A-230867044 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2022-9426.html · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-1786 · Vendor Advisory
• https://bdu.fstec.ru/vul/2022-03703 · Security Note