CVE-2021-28855
MEDIUMCVSS 5.5/10EPSS 0.90%
Last modified
CVE-2021-28855 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. 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).. EPSS estimates a 0.90% chance of exploitation in the next 30 days.
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:3.1/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/NULL-Pointer-Dereference-Deark/Patch, Third Party Advisory
- 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
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is 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).
How severe is CVE-2021-28855?
CVE-2021-28855 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.90% probability of exploitation in the next 30 days.
How do I fix CVE-2021-28855?
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.
Are you affected by CVE-2021-28855?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST