Use After Free Affecting virt:rhel/lua-guestfs package, versions <1:1.40.2-25.module+el8.3.0+7421+642fe24f


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.06% (26th percentile)

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  • Snyk IDSNYK-RHEL8-VIRT-3879260
  • published26 Jul 2021
  • disclosed2 Apr 2020

Introduced: 2 Apr 2020

CVE-2020-1983  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade RHEL:8 virt:rhel/lua-guestfs to version 1:1.40.2-25.module+el8.3.0+7421+642fe24f or higher.
This issue was patched in RHSA-2020:4676.

NVD Description

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

A use after free vulnerability in ip_reass() in ip_input.c of libslirp 4.2.0 and prior releases allows crafted packets to cause a denial of service.

CVSS Scores

version 3.1