Homepage
About Snyk

Race Condition Affecting kernel-devel-matched package, versions <0:5.14.0-162.6.1.el9_1

Severity

 Recommended
medium

Based on AlmaLinux security rating

    Threat Intelligence

    EPSS
    0.04% (6th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk ID SNYK-ALMALINUX9-KERNELDEVELMATCHED-5646099
  • published 28 May 2023
  • disclosed 15 Nov 2022
Report a new vulnerability Found a mistake?

Introduced: 15 Nov 2022

CVE-2021-3640 Open this link in a new tab
CWE-362 Open this link in a new tab

How to fix?

Upgrade AlmaLinux:9 kernel-devel-matched to version 0:5.14.0-162.6.1.el9_1 or higher.
This issue was patched in ALSA-2022:8267.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-devel-matched package and not the kernel-devel-matched package as distributed by AlmaLinux. See How to fix? for AlmaLinux:9 relevant fixed versions and status.

A flaw use-after-free in function sco_sock_sendmsg() of the Linux kernel HCI subsystem was found in the way user calls ioct UFFDIO_REGISTER or other way triggers race condition of the call sco_conn_del() together with the call sco_sock_sendmsg() with the expected controllable faulting memory page. A privileged local user could use this flaw to crash the system or escalate their privileges on the system.

References

CVSS Scores

version 3.1
Expand this section

NVD

7 high
  • Attack Vector (AV)
    Local
  • Attack Complexity (AC)
    High
  • Privileges Required (PR)
    Low
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    High
Expand this section

SUSE

7.4 high
Expand this section

Red Hat

6.7 medium