Off-by-one Error Affecting lua-guestfs package, versions <1:1.40.2-28.module+el8.5.0+10717+67be7ac4


Severity

Recommended
0.0
low
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.05% (17th percentile)

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  • Snyk IDSNYK-CENTOS8-LUAGUESTFS-2323923
  • published6 Nov 2021
  • disclosed4 Feb 2021

Introduced: 4 Feb 2021

CVE-2021-3930  (opens in a new tab)
CWE-193  (opens in a new tab)

How to fix?

Upgrade Centos:8 lua-guestfs to version 1:1.40.2-28.module+el8.5.0+10717+67be7ac4 or higher.

NVD Description

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

An off-by-one error was found in the SCSI device emulation in QEMU. It could occur while processing MODE SELECT commands in mode_sense_page() if the 'page' argument was set to MODE_PAGE_ALLS (0x3f). A malicious guest could use this flaw to potentially crash QEMU, resulting in a denial of service condition.

CVSS Scores

version 3.1