Divide By Zero Affecting edk2-ovmf package, versions <0:20220126gitbb1bba3d77-4.el8_8.4


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    0.05% (17th percentile)

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  • Snyk ID SNYK-RHEL8-EDK2OVMF-7555998
  • published 24 Jul 2024
  • disclosed 31 May 2024

How to fix?

Upgrade RHEL:8 edk2-ovmf to version 0:20220126gitbb1bba3d77-4.el8_8.4 or higher.
This issue was patched in RHSA-2024:4747.

NVD Description

Note: Versions mentioned in the description apply only to the upstream edk2-ovmf package and not the edk2-ovmf package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

EDK2 contains a vulnerability when S3 sleep is activated where an Attacker may cause a Division-By-Zero due to a UNIT32 overflow via local access. A successful exploit of this vulnerability may lead to a loss of Availability.

CVSS Scores

version 3.1
Expand this section

Red Hat

6 medium
  • Attack Vector (AV)
    Local
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    High
  • User Interaction (UI)
    None
  • Scope (S)
    Changed
  • Confidentiality (C)
    None
  • Integrity (I)
    None
  • Availability (A)
    High