CVE-2021-21797
An exploitable double-free vulnerability exists in the JavaScript implementation of Nitro Pro PDF.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 15.0%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.
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 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 15.05% probability · 97th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-415
- Affected
- gonitro/nitro pro
- Source
- talos-cna@cisco.com
References
- https://talosintelligence.com/vulnerability_reports/TALOS-2021-1266Exploit, Mitigation, Third Party Advisory
- https://talosintelligence.com/vulnerability_reports/TALOS-2021-1266Exploit, Mitigation, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.