Vulnerability · Published Dec 22, 2021 · Assigned by talos

CVE-2021-40417

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 15.7% (higher than 97% of all known vulnerabilities).

Severity (CVSS 3.1)9.8Critical

Exploit odds (30 days)15.7%top 3.1% 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 service will use the combination of decoding parameters that were submitted with the job along with fields that were parsed for the submitted video by the R3D SDK to calculate the size of a heap buffer. Due to an integer overflow with regards to this calculation, this can result in an undersized heap buffer being allocated. When this heap buffer is written to, a heap-based buffer overflow will occur. This 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-680 · 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-2021-1426 x_refsource_MISC