Out-of-bounds Read Affecting swtpm-tools package, versions <0:0.7.0-3.20211109gitb79fd91.module+el8.7.0+20916+50473d5a


Severity

Recommended
high

Based on Oracle Linux security rating

    Threat Intelligence

    EPSS
    0.05% (15th percentile)

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  • Snyk ID SNYK-ORACLE8-SWTPMTOOLS-3230863
  • published 15 Jan 2023
  • disclosed 29 Nov 2022

How to fix?

Upgrade Oracle:8 swtpm-tools to version 0:0.7.0-3.20211109gitb79fd91.module+el8.7.0+20916+50473d5a or higher.
This issue was patched in ELSA-2023-12195.

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.

An out-of-bounds read flaw was found in the QXL display device emulation in QEMU. The qxl_phys2virt() function does not check the size of the structure pointed to by the guest physical address, potentially reading past the end of the bar space into adjacent pages. A malicious guest user could use this flaw to crash the QEMU process on the host causing a denial of service condition.

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

6.5 medium
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Red Hat

6.5 medium