Use After Free Affecting kernel-devel package, versions <0:4.18.0-513.9.1.el8_9


Severity

Recommended
0.0
high
0
10

Based on Rocky Linux security rating

    Threat Intelligence

    EPSS
    0.04% (14th percentile)

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  • Snyk ID SNYK-ROCKY8-KERNELDEVEL-6102355
  • published 7 Dec 2023
  • disclosed 27 Nov 2022

How to fix?

Upgrade Rocky-Linux:8 kernel-devel to version 0:4.18.0-513.9.1.el8_9 or higher.
This issue was patched in RLSA-2023:7549.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-devel package and not the kernel-devel package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux:8 relevant fixed versions and status.

An issue was discovered in the Linux kernel through 6.0.10. In drivers/media/dvb-core/dvb_ca_en50221.c, a use-after-free can occur is there is a disconnect after an open, because of the lack of a wait_event.

CVSS Scores

version 3.1
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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 high
Expand this section

Red Hat

7 high