VulnerabilityModified
CVE-2021-28855
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).
MEDIUM 5.5EPSS 0.90%
Does this matter?
Lower severity and a low EPSS score (0.90%). Track it; it rarely justifies an emergency change on its own.
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 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- EPSS
- 0.90% probability · 58th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- entropymine/deark
- Source
- cve@mitre.org
References
- https://fatihhcelik.github.io/posts/NULL-Pointer-Dereference-Deark/Patch, Third Party Advisory
- https://github.com/fuzzing2026/CVE-PoCs/tree/main/deark-CVE-2021-28855
- https://github.com/jsummers/deark/commit/287f5ac31dfdc074669182f51ece637706070eebPatch, Third Party Advisory
- https://fatihhcelik.github.io/posts/NULL-Pointer-Dereference-Deark/Patch, Third Party Advisory
- https://github.com/jsummers/deark/commit/287f5ac31dfdc074669182f51ece637706070eebPatch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.