VDB-173227 · CVE-2021-3497 · Nessus 276319

GStreamer up to 1.18.3 Matroska File use after free

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.5	$0-$5k	0.00

Summaryinfo

A vulnerability was found in GStreamer up to 1.18.3. It has been classified as problematic. Affected is an unknown function of the component Matroska File Handler. This manipulation causes use after free. This vulnerability is tracked as CVE-2021-3497. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability has been found in GStreamer up to 1.18.3 (Multimedia Processing Software) and classified as problematic. Affected by this vulnerability is an unknown code block of the component Matroska File Handler. The manipulation with an unknown input leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. The impact remains unknown.

The weakness was disclosed 04/20/2021. It is possible to read the advisory at bugzilla.redhat.com. This vulnerability is known as CVE-2021-3497. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 276319 (TencentOS Server 3: gstreamer1-plugins-good (TSSA-2022:0256)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 1.18.4 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (276319). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Multimedia Processing Software

Name

GStreamer

Version

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.6
VulDB Meta Temp Score: 6.5

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 276319
Nessus Name: TencentOS Server 3: gstreamer1-plugins-good (TSSA-2022:0256)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: GStreamer 1.18.4

Timelineinfo

04/13/2021 🔍
04/20/2021 +7 days 🔍
04/20/2021 +0 days 🔍
03/17/2026 +1792 days 🔍

Sourcesinfo

Advisory: bugzilla.redhat.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-3497 (🔍)
GCVE (CVE): GCVE-0-2021-3497
GCVE (VulDB): GCVE-100-173227

Entryinfo

Created: 04/20/2021 07:20
Updated: 03/17/2026 18:55
Changes: 04/20/2021 07:20 (38), 04/23/2021 14:31 (5), 11/24/2025 00:25 (16), 03/17/2026 18:55 (19)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.