Heap-based Buffer Overflow Affecting container-tools:rhel8/buildah-tests package, versions <0:1.11.6-4.module+el8.1.1+5259+bcdd613a


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.36% (74th percentile)

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  • Snyk IDSNYK-RHEL8-CONTAINERTOOLS-3649190
  • published26 Jul 2021
  • disclosed7 Jan 2020

Introduced: 7 Jan 2020

CVE-2020-7039  (opens in a new tab)
CWE-122  (opens in a new tab)

How to fix?

Upgrade RHEL:8 container-tools:rhel8/buildah-tests to version 0:1.11.6-4.module+el8.1.1+5259+bcdd613a or higher.
This issue was patched in RHSA-2020:0348.

NVD Description

Note: Versions mentioned in the description apply only to the upstream container-tools:rhel8/buildah-tests package and not the container-tools:rhel8/buildah-tests package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

tcp_emu in tcp_subr.c in libslirp 4.1.0, as used in QEMU 4.2.0, mismanages memory, as demonstrated by IRC DCC commands in EMU_IRC. This can cause a heap-based buffer overflow or other out-of-bounds access which can lead to a DoS or potential execute arbitrary code.

CVSS Scores

version 3.1