Integer Overflow or Wraparound Affecting libstdc++ package, versions <0:8.5.0-3.el8
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RHEL8-LIBSTDC-1328583
- published26 Jul 2021
- disclosed27 Dec 2018
Introduced: 27 Dec 2018
CVE-2018-20673 (opens in a new tab)How to fix?
Upgrade RHEL:8 libstdc++ to version 0:8.5.0-3.el8 or higher.
This issue was patched in RHSA-2021:4386.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libstdc++ package and not the libstdc++ package as distributed by RHEL.
See How to fix? for RHEL:8 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.