Out-of-bounds Read Affecting virt:rhel/lua-guestfs package, versions <1:1.40.2-27.module+el8.4.0+9282+0bdec052


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.24% (65th percentile)

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  • Snyk IDSNYK-RHEL8-VIRT-4041021
  • published26 Jul 2021
  • disclosed26 Nov 2020

Introduced: 26 Nov 2020

CVE-2020-29129  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade RHEL:8 virt:rhel/lua-guestfs to version 1:1.40.2-27.module+el8.4.0+9282+0bdec052 or higher.
This issue was patched in RHSA-2021:1762.

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.

ncsi.c in libslirp through 4.3.1 has a buffer over-read because it tries to read a certain amount of header data even if that exceeds the total packet length.

CVSS Scores

version 3.1