CVE-2021-46239: gpac Use After Free
CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2021-46239DEBIAN-CVE-2021-46239
Published 21-01-2022Last modified 04-08-2024
Vulnerability summary
CVE-2021-46239 is a medium (CVSS 5.5) Use After Free vulnerability in gpac. EPSS estimates a 0.67% chance of exploitation in the next 30 days, higher than 51.5% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
5.5/10
010
Medium · v3.1 (NVD)EPSS score
0.67%
0%100%
Low · +0.06 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github
Timeline
- 21-01-2022PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
The binary MP4Box in GPAC v1.1.0 was discovered to contain an invalid free vulnerability via the function gf_free () at utils/alloc.c. This vulnerability can lead to a Denial of Service (DoS).
CVSS metrics
4 scores · 3 sources · 2 versionsMedium 5.5Preferred score · NVD (NIST)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Medium 4.3Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
0.67%
Chance of exploitation in the next 30 days
Percentile
52%
Versus all other CVEs
30-day change
+0.06 pp
From 0.62% on 21-09-2026
21-09-202621-10-2026
EPSS score0.67%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundGpac
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Debian1 product
- gpacAll versions (No fix recorded)
Gpac1 product
- gpac1.1.0:dev
Ubuntu1 product
- gpacAll versions (No fix recorded)
3 vendors · 3 products
References
4 links- github.com/gpac/gpac/issues/2026X Refsource MISCREPORTExploitIssue TrackingPatchThird Party Advisory
