Vulnerability Description
In Deark before 1.5.8, a specially crafted input file can cause a NULL pointer dereference in the dbuf_write function (src/deark-dbuf.c).
CVSS Score
5.5
MEDIUM
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Entropymine | Deark | < 1.5.8 |
Related Weaknesses (CWE)
References
- https://fatihhcelik.github.io/posts/NULL-Pointer-Dereference-Deark/PatchThird Party Advisory
- https://github.com/fuzzing2026/CVE-PoCs/tree/main/deark-CVE-2021-28855
- https://github.com/jsummers/deark/commit/287f5ac31dfdc074669182f51ece637706070eePatchThird Party Advisory
- https://fatihhcelik.github.io/posts/NULL-Pointer-Dereference-Deark/PatchThird Party Advisory
- https://github.com/jsummers/deark/commit/287f5ac31dfdc074669182f51ece637706070eePatchThird Party Advisory
FAQ
What is CVE-2021-28855?
CVE-2021-28855 is a vulnerability with a CVSS score of 5.5 (MEDIUM). In Deark before 1.5.8, a specially crafted input file can cause a NULL pointer dereference in the dbuf_write function (src/deark-dbuf.c).
How severe is CVE-2021-28855?
CVE-2021-28855 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-28855?
Check the references section above for vendor advisories and patch information. Affected products include: Entropymine Deark.