Integer Overflow or Wraparound Affecting libgcc package, versions *


Severity

Recommended
0.0
medium
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.12% (31st percentile)

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  • Snyk IDSNYK-CENTOS7-LIBGCC-1990683
  • published26 Jul 2021
  • disclosed27 Dec 2018

Introduced: 27 Dec 2018

CVE-2018-20673  (opens in a new tab)
CWE-190  (opens in a new tab)
CWE-122  (opens in a new tab)

How to fix?

There is no fixed version for Centos:7 libgcc.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libgcc package and not the libgcc package as distributed by Centos. See How to fix? for Centos:7 relevant fixed versions and status.

The demangle_template function in cplus-dem.c in GNU libiberty, as distributed in GNU Binutils 2.31.1, contains an integer overflow vulnerability (for "Create an array for saving the template argument values") that can trigger a heap-based buffer overflow, as demonstrated by nm.