Use After Free Affecting qemu-chardev-spice package, versions <5.2.0-150300.118.3


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating

    Threat Intelligence

    EPSS
    0.08% (34th percentile)

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  • Snyk ID SNYK-SLES153-QEMUCHARDEVSPICE-3057288
  • published 20 Oct 2022
  • disclosed 19 Oct 2022

How to fix?

Upgrade SLES:15.3 qemu-chardev-spice to version 5.2.0-150300.118.3 or higher.

NVD Description

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

A use-after-free vulnerability was found in the LSI53C895A SCSI Host Bus Adapter emulation of QEMU. The flaw occurs while processing repeated messages to cancel the current SCSI request via the lsi_do_msgout function. This flaw allows a malicious privileged user within the guest to crash the QEMU process on the host, resulting in a denial of service.

CVSS Scores

version 3.1
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NVD

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

5.3 medium
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Red Hat

5.3 medium