CVE-2018-20431

Name: CVE-2018-20431
Creator: NVD / NIST
Published: 2018-12-24T05:29:01.6+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.24%

Last modified Jun 17, 2026

CVE-2018-20431 is a vulnerability of currently unknown severity. GNU Libextractor through 1.8 has a NULL Pointer Dereference vulnerability in the function process_metadata() in plugins/ole2_extractor.c.. EPSS estimates a 2.24% chance of exploitation in the next 30 days.

Description

GNU Libextractor through 1.8 has a NULL Pointer Dereference vulnerability in the function process_metadata() in plugins/ole2_extractor.c.

Metrics

EPSS Probability

2.24%

80.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-476

Affected Software

Vendor	Product	Versions
Gnu	Libextractor	<= 1.8
Debian	Debian Linux	8.0
Debian	Debian Linux	9.0

References

http://www.securityfocus.com/bid/106300Third Party Advisory, VDB Entry
https://gnunet.org/bugs/view.php?id=5494Exploit, Issue Tracking, Third Party Advisory
https://gnunet.org/git/libextractor.git/commit/?id=489c4a540bb2c4744471441425b8932b97a153e7Patch, Third Party Advisory
https://gnunet.org/git/libextractor.git/tree/ChangeLogThird Party Advisory
https://lists.debian.org/debian-lts-announce/2018/12/msg00015.htmlMailing List, Third Party Advisory
https://www.debian.org/security/2018/dsa-4361Third Party Advisory
http://www.securityfocus.com/bid/106300Third Party Advisory, VDB Entry
https://gnunet.org/bugs/view.php?id=5494Exploit, Issue Tracking, Third Party Advisory
https://gnunet.org/git/libextractor.git/commit/?id=489c4a540bb2c4744471441425b8932b97a153e7Patch, Third Party Advisory
https://gnunet.org/git/libextractor.git/tree/ChangeLogThird Party Advisory
https://lists.debian.org/debian-lts-announce/2018/12/msg00015.htmlMailing List, Third Party Advisory
https://www.debian.org/security/2018/dsa-4361Third Party Advisory

Timeline

Published: Dec 24, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-20431?

GNU Libextractor through 1.8 has a NULL Pointer Dereference vulnerability in the function process_metadata() in plugins/ole2_extractor.c.

How severe is CVE-2018-20431?

Severity scoring for CVE-2018-20431 is pending analysis. The EPSS model estimates a 2.24% probability of exploitation in the next 30 days.

How do I fix CVE-2018-20431?

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-2018-20431?

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

Scan your code now

Source: NVD / NIST