CVE-2021-28856
MEDIUMCVSS 5.5/10EPSS 0.85%
Last modified
CVE-2021-28856 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. In Deark before v1.5.8, a specially crafted input file can cause a division by zero in (src/fmtutil.c) because of the value of pixelsize.. EPSS estimates a 0.85% chance of exploitation in the next 30 days.
Description
In Deark before v1.5.8, a specially crafted input file can cause a division by zero in (src/fmtutil.c) because of the value of pixelsize.
Metrics
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Entropymine | Deark | < 1.5.8 |
References
- https://fatihhcelik.github.io/posts/Division-By-Zero-Deark/Patch, Third Party Advisory
- https://github.com/jsummers/deark/commit/62acb7753b0e3c0d3ab3c15057b0a65222313334Patch, Third Party Advisory
- https://fatihhcelik.github.io/posts/Division-By-Zero-Deark/Patch, Third Party Advisory
- https://github.com/jsummers/deark/commit/62acb7753b0e3c0d3ab3c15057b0a65222313334Patch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-28856?
In Deark before v1.5.8, a specially crafted input file can cause a division by zero in (src/fmtutil.c) because of the value of pixelsize.
How severe is CVE-2021-28856?
CVE-2021-28856 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.85% probability of exploitation in the next 30 days.
How do I fix CVE-2021-28856?
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.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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Are you affected by CVE-2021-28856?
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Scan your code nowSource: NVD / NIST