Vulnerability · Published Dec 22, 2021 · Assigned by talos

CVE-2021-40418

Critical 9.8

In plain English

A critical-severity security flaw in Blackmagic Design. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 17.9% (higher than 97% of all known vulnerabilities).

Severity (CVSS 3.1)9.8Critical

Exploit odds (30 days)17.9%top 2.8% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

When parsing a file that is submitted to the DPDecoder service as a job, the R3D SDK will mistakenly skip over the assignment of a property containing an object referring to a UUID that was parsed from a frame within the video container. Upon destruction of the object that owns it, the uninitialized member will be dereferenced and then destroyed using the object’s virtual destructor. Due to the object property being uninitialized, this can result in dereferencing an arbitrary pointer for the object’s virtual method table, which can result in code execution under the context of the application.

Affected products (as reported)

Vendor	Product	Versions
n/a	Blackmagic Design	Blackmagic Design DaVinci Resolve 17.3.1.0005

Weakness: CWE-457 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

https://talosintelligence.com/vulnerability_reports/TALOS-2021-1427 x_refsource_MISC