Missing Release of Resource after Effective Lifetime Affecting virt:rhel/libiscsi-devel package, versions <0:1.18.0-8.module_el8.6.0+2880+7d9e3703


Severity

Recommended
medium

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.04% (15th percentile)

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  • Snyk IDSNYK-ALMALINUX8-VIRT-5612821
  • published28 May 2023
  • disclosed3 Nov 2020

Introduced: 3 Nov 2020

CVE-2020-14339  (opens in a new tab)
CWE-772  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:8 virt:rhel/libiscsi-devel to version 0:1.18.0-8.module_el8.6.0+2880+7d9e3703 or higher.
This issue was patched in ALSA-2020:4676.

NVD Description

Note: Versions mentioned in the description apply only to the upstream virt:rhel/libiscsi-devel package and not the virt:rhel/libiscsi-devel package as distributed by AlmaLinux. See How to fix? for AlmaLinux:8 relevant fixed versions and status.

A flaw was found in libvirt, where it leaked a file descriptor for /dev/mapper/control into the QEMU process. This file descriptor allows for privileged operations to happen against the device-mapper on the host. This flaw allows a malicious guest user or process to perform operations outside of their standard permissions, potentially causing serious damage to the host operating system. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

CVSS Scores

version 3.1