CVE-2021-21797 — HIGH (7.8)

Vulnerability Description

An exploitable double-free vulnerability exists in the JavaScript implementation of Nitro Pro PDF. A specially crafted document can cause a reference to a timeout object to be stored in two different places. When closed, the document will result in the reference being released twice. This 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-415

References

https://talosintelligence.com/vulnerability_reports/TALOS-2021-1266ExploitMitigationThird Party Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1266ExploitMitigationThird Party Advisory

FAQ

What is CVE-2021-21797?

CVE-2021-21797 is a vulnerability with a CVSS score of 7.8 (HIGH). An exploitable double-free vulnerability exists in the JavaScript implementation of Nitro Pro PDF. A specially crafted document can cause a reference to a timeout object to be stored in two different ...

How severe is CVE-2021-21797?

CVE-2021-21797 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-2021-21797?

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