Vulnerability · Published Dec 2, 2020 · Assigned by talos

CVE-2020-13494

Medium 4.3

In plain English

A medium-severity heap buffer overflow in Pixar. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.2% (higher than 68% of all known vulnerabilities).

Severity (CVSS 3.0)4.3Medium

Exploit odds (30 days)1.2%top 32.2% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

A heap overflow vulnerability exists in the Pixar OpenUSD 20.05 parsing of compressed string tokens in binary USD files. A specially crafted malformed file can trigger a heap overflow which can result in out of bounds memory access which could lead to information disclosure. This vulnerability could be used to bypass mitigations and aid further exploitation. To trigger this vulnerability, victim needs to access an attacker-provided malformed file.

Affected products (as reported)

Vendor	Product	Versions
n/a	Pixar	Pixar OpenUSD 20.05, Apple macOS Catalina 10.15.3

Weakness: CWE-122 · Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

References

https://talosintelligence.com/vulnerability_reports/TALOS-2020-1103 x_refsource_MISC