Out-of-bounds Read Affecting virt:rhel/lua-guestfs package, versions <1:1.38.4-15.module+el8.2.0+5297+222a20af


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.07% (32nd percentile)

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  • Snyk IDSNYK-RHEL8-VIRT-4782105
  • published26 Jul 2021
  • disclosed27 May 2020

Introduced: 27 May 2020

CVE-2020-10756  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade RHEL:8 virt:rhel/lua-guestfs to version 1:1.38.4-15.module+el8.2.0+5297+222a20af or higher.
This issue was patched in RHSA-2020:4059.

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.

An out-of-bounds read vulnerability was found in the SLiRP networking implementation of the QEMU emulator. This flaw occurs in the icmp6_send_echoreply() routine while replying to an ICMP echo request, also known as ping. This flaw allows a malicious guest to leak the contents of the host memory, resulting in possible information disclosure. This flaw affects versions of libslirp before 4.3.1.

CVSS Scores

version 3.1