CVE-2020-21548: Buffer Overflow
First published: Fri Sep 17 2021(Updated: )
Libsixel 1.8.3 contains a heap-based buffer overflow in the sixel_encode_highcolor function in tosixel.c.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Libsixel Project Libsixel | =1.8.3 |
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Reference Links
Frequently Asked Questions
What is CVE-2020-21548?
CVE-2020-21548 is a vulnerability in Libsixel 1.8.3 that allows a heap-based buffer overflow.
How severe is CVE-2020-21548?
CVE-2020-21548 has a severity rating of 8.8 (high).
What software is affected by CVE-2020-21548?
Libsixel 1.8.3 is affected by CVE-2020-21548.
What is the CWE of CVE-2020-21548?
CVE-2020-21548 belongs to CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) and CWE-787 (Out-of-bounds Write).
How can I fix CVE-2020-21548?
Update Libsixel to a version that is not affected by CVE-2020-21548.
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