Heap-based Buffer Overflow Affecting runc package, versions <0:1.0.0-64.rc9.module+el8.1.1+5259+bcdd613a


Severity

Recommended
high

Based on CentOS security rating.

Threat Intelligence

EPSS
0.36% (74th percentile)

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  • Snyk IDSNYK-CENTOS8-RUNC-2021677
  • 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 Centos:8 runc to version 0:1.0.0-64.rc9.module+el8.1.1+5259+bcdd613a or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream runc package and not the runc package as distributed by Centos. See How to fix? for Centos: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