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VULNERABILITIES

CVE-2021-28855 Details

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).

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:5.5 MEDIUMVector:CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://fatihhcelik.github.io/posts/NULL-Pointer-Dereference-Deark/ CVEPatchThird Party Advisory
https://github.com/jsummers/deark/commit/287f5ac31dfdc074669182f51ece637706070eeb CVEPatchThird Party Advisory
https://fatihhcelik.github.io/posts/NULL-Pointer-Dereference-Deark/ [email protected]PatchThird Party Advisory
https://github.com/fuzzing2026/CVE-PoCs/tree/main/deark-CVE-2021-28855 [email protected]
https://github.com/jsummers/deark/commit/287f5ac31dfdc074669182f51ece637706070eeb [email protected]PatchThird Party Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-476NULL Pointer Dereference[email protected]

Affected Products

ProductVersions
entropymine deark
< 1.5.8

CPE

  • cpe:2.3:a:entropymine:deark:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

5 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2021-28855
NVD Published Date:
Apr 14, 2021
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2021-28855 Details - Not Deferred