CVE-2018-20673

Name: CVE-2018-20673
Creator: NVD / NIST
Published: 2019-01-04T18:29:00.21+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.64%

Last modified Jun 17, 2026

CVE-2018-20673 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 1.64% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability

1.64%

73.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Gnu	Binutils	2.31.1

References

http://www.securityfocus.com/bid/106454Third Party Advisory, VDB Entry
https://sourceware.org/bugzilla/show_bug.cgi?id=24039Exploit, Issue Tracking, Third Party Advisory
http://www.securityfocus.com/bid/106454Third Party Advisory, VDB Entry
https://sourceware.org/bugzilla/show_bug.cgi?id=24039Exploit, Issue Tracking, Third Party Advisory

Timeline

Published: Jan 4, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-20673?

How severe is CVE-2018-20673?

Severity scoring for CVE-2018-20673 is pending analysis. The EPSS model estimates a 1.64% probability of exploitation in the next 30 days.

How do I fix CVE-2018-20673?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-20673?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST