Loop with Unreachable Exit Condition ('Infinite Loop') Affecting qemu-kvm package, versions <5.2.0-150300.121.2


Severity

Recommended
0.0
low
0
10

Based on SUSE Linux Enterprise Server security rating

    Threat Intelligence

    EPSS
    0.05% (21st percentile)

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  • Snyk ID SNYK-SLES153-QEMUKVM-3367742
  • published 22 Mar 2023
  • disclosed 21 Mar 2023

How to fix?

Upgrade SLES:15.3 qemu-kvm to version 5.2.0-150300.121.2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream qemu-kvm package and not the qemu-kvm package as distributed by SLES. See How to fix? for SLES:15.3 relevant fixed versions and status.

An infinite loop flaw was found in the USB xHCI controller emulation of QEMU while computing the length of the Transfer Request Block (TRB) Ring. This flaw allows a privileged guest user to hang the QEMU process on the host, resulting in a denial of service.

CVSS Scores

version 3.1
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NVD

3.2 low
  • 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)
    Low
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SUSE

3.2 low
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Red Hat

3.2 low