CVE-2018-20431: Null Pointer Dereference
First published: Mon Dec 24 2018(Updated: )
GNU Libextractor through 1.8 has a NULL Pointer Dereference vulnerability in the function process_metadata() in plugins/ole2_extractor.c.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/libextractor | 1:1.8-2+deb10u1 1:1.11-2 1:1.11-7 1:1.11-8 | |
| libextractor | <=1.8 | |
| Debian GNU/Linux | =8.0 | |
| Debian GNU/Linux | =9.0 |
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Reference Links
- http://www.securityfocus.com/bid/106300
- https://gnunet.org/bugs/view.php?id=5494
- https://gnunet.org/git/libextractor.git/commit/?id=489c4a540bb2c4744471441425b8932b97a153e7
- https://gnunet.org/git/libextractor.git/tree/ChangeLog
- https://lists.debian.org/debian-lts-announce/2018/12/msg00015.html
- https://www.debian.org/security/2018/dsa-4361
- https://git.gnunet.org/libextractor.git/commit/?id=489c4a540bb2c4744471441425b8932b97a153e7
- https://security-tracker.debian.org/tracker/CVE-2018-20431
Frequently Asked Questions
What is the severity of CVE-2018-20431?
CVE-2018-20431 is classified as a NULL Pointer Dereference vulnerability with the potential to cause application crashes.
How do I fix CVE-2018-20431?
To resolve CVE-2018-20431, upgrade to libextractor versions 1:1.8-2+deb10u1, 1:1.11-2, 1:1.11-7, or 1:1.11-8.
Which versions of libextractor are affected by CVE-2018-20431?
CVE-2018-20431 affects libextractor versions up to and including 1.8.
What impact does CVE-2018-20431 have on systems?
CVE-2018-20431 can cause crashes in applications using affected versions of libextractor when processing certain metadata.
Is there a public exploit for CVE-2018-20431?
There is currently no known public exploit for CVE-2018-20431, but the vulnerability is still considered critical to address.
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