CVE-2021-21796 — HIGH (7.8)

Vulnerability Description

An exploitable use-after-free vulnerability exists in the JavaScript implementation of Nitro Pro PDF. A specially crafted document can cause an object containing the path to a document to be destroyed and then later reused, resulting in a use-after-free vulnerability, which can lead to code execution under the context of the application. An attacker can convince a user to open a document to trigger this vulnerability.

CVSS Score

7.8

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Gonitro	Nitro Pro	13.31.0.605

Related Weaknesses (CWE)

CWE-416

References

https://talosintelligence.com/vulnerability_reports/TALOS-2021-1265ExploitMitigationThird Party Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1265ExploitMitigationThird Party Advisory

FAQ

What is CVE-2021-21796?

CVE-2021-21796 is a vulnerability with a CVSS score of 7.8 (HIGH). An exploitable use-after-free vulnerability exists in the JavaScript implementation of Nitro Pro PDF. A specially crafted document can cause an object containing the path to a document to be destroyed...

How severe is CVE-2021-21796?

CVE-2021-21796 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-21796?

Check the references section above for vendor advisories and patch information. Affected products include: Gonitro Nitro Pro.