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
    0.04% (6th percentile)

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  • Snyk ID SNYK-ORACLE8-SWTPMTOOLS-2830728
  • published 30 Apr 2022
  • disclosed 25 Jan 2022

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 issue was found in the block mirror layer of QEMU in versions prior to 6.2.0. The self pointer is dereferenced in mirror_wait_on_conflicts() without ensuring that it's not NULL. A malicious unprivileged user within the guest could use this flaw to crash the QEMU process on the host when writing data reaches the threshold of mirroring node.

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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Red Hat

5.6 medium