CVE-2021-20308: Integer Overflow
First published: Mon Apr 05 2021(Updated: )
Integer overflow in the htmldoc 1.9.11 and before may allow attackers to execute arbitrary code and cause a denial of service that is similar to <a href="https://access.redhat.com/security/cve/CVE-2017-9181">CVE-2017-9181</a>. Upstream bug: <a href="https://github.com/michaelrsweet/htmldoc/issues/423">https://github.com/michaelrsweet/htmldoc/issues/423</a>
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Htmldoc Project Htmldoc | <=1.9.11 | |
| Debian Debian Linux | =9.0 |
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Reference Links
- https://bugzilla.redhat.com/show_bug.cgi?id=1946289
- https://github.com/michaelrsweet/htmldoc/issues/423
- https://lists.debian.org/debian-lts-announce/2021/07/msg00000.html
- https://access.redhat.com/security/cve/CVE-2017-9181
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1946291
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1946290
Frequently Asked Questions
What is the severity of CVE-2021-20308?
The severity of CVE-2021-20308 is critical with a CVSS v3.1 score of 9.8.
What is the affected software for CVE-2021-20308?
The affected software for CVE-2021-20308 includes htmldoc version 1.9.11 and Debian Linux version 9.0.
How can an attacker exploit CVE-2021-20308?
An attacker can exploit CVE-2021-20308 by leveraging an integer overflow vulnerability to execute arbitrary code and cause a denial of service.
Are there any fixes or patches available for CVE-2021-20308?
Yes, there are fixes and patches available for CVE-2021-20308. It is recommended to update to a patched version of the affected software.
Where can I find more information about CVE-2021-20308?
You can find more information about CVE-2021-20308 in the references provided: [Bugzilla Red Hat](https://bugzilla.redhat.com/show_bug.cgi?id=1946289), [GitHub](https://github.com/michaelrsweet/htmldoc/issues/423), [Debian LTS Announce](https://lists.debian.org/debian-lts-announce/2021/07/msg00000.html).
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