NULL Pointer Dereference Affecting swtpm-tools package, versions <0:0.7.0-1.20211109gitb79fd91.module+el8.6.0+20659+3dcf7c70


Severity

Recommended
0.0
medium
0
10

Based on Oracle Linux security rating

    Threat Intelligence

    EPSS
    0.06% (24th percentile)

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  • Snyk ID SNYK-ORACLE8-SWTPMTOOLS-2830482
  • published 10 Apr 2022
  • disclosed 26 May 2021

How to fix?

Upgrade Oracle:8 swtpm-tools to version 0:0.7.0-1.20211109gitb79fd91.module+el8.6.0+20659+3dcf7c70 or higher.
This issue was patched in ELSA-2022-1759.

NVD Description

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

A NULL pointer dereference flaw was found in the floppy disk emulator of QEMU. This issue occurs while processing read/write ioport commands if the selected floppy drive is not initialized with a block device. This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.

CVSS Scores

version 3.1
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NVD

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

3.2 low
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Red Hat

3.2 low