Vulnerability · Published Aug 11, 2021 · Assigned by mitre

CVE-2021-32439

High 7.8

In plain English

A high-severity security flaw in the ccextractor package (Ubuntu). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.3% (higher than 70% of all known vulnerabilities).

Severity (CVSS NVD)7.8High

Exploit odds (30 days)1.3%top 30.0% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

Buffer overflow in the stbl_AppendSize function in MP4Box in GPAC 1.0.1 allows attackers to cause a denial of service or execute arbitrary code via a crafted file.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Ubuntu:22.04:LTS	ccextractor	no fix listed	UBUNTU-CVE-2021-32439
Ubuntu:24.04:LTS	ccextractor	no fix listed	UBUNTU-CVE-2021-32439

Affected products (as reported)

Vendor	Product	Versions
n/a	n/a	n/a

References

https://github.com/gpac/gpac/issues/1774 x_refsource_MISC
https://github.com/gpac/gpac/commit/77ed81c069e10b3861d88f72e1c6be1277ee7eae x_refsource_MISC