VDB-238219 · CVE-2023-39562 · Issue 2537

GPAC 2.3-DEV-rev449-g5948e4f70-master File bitstream.c gf_bs_align 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.
4.4	$0-$5k	0.00

Summaryinfo

A vulnerability identified as problematic has been detected in GPAC 2.3-DEV-rev449-g5948e4f70-master. This vulnerability affects the function gf_bs_align of the file bitstream.c of the component File Handler. This manipulation causes use after free. The identification of this vulnerability is CVE-2023-39562. Furthermore, there is an exploit available.

Detailsinfo

A vulnerability was found in GPAC 2.3-DEV-rev449-g5948e4f70-master. It has been declared as problematic. Affected by this vulnerability is the function gf_bs_align of the file bitstream.c of the component 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. As an impact it is known to affect availability. The summary by CVE is:

GPAC v2.3-DEV-rev449-g5948e4f70-master was discovered to contain a heap-use-after-free via the gf_bs_align function at bitstream.c. This vulnerability allows attackers to cause a Denial of Service (DoS) via supplying a crafted file.

The weakness was shared 08/29/2023 as 2537. It is possible to read the advisory at github.com. This vulnerability is known as CVE-2023-39562 since 08/07/2023. Technical details and also a public exploit are known.

It is possible to download the exploit at github.com. It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-43271). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Multimedia Player Software

Name

GPAC

Version

2.3-DEV-rev449-g5948e4f70-master

License

open-source

Website

Product: https://github.com/gpac/gpac/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.5
VulDB Meta Temp Score: 4.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

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

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/07/2023 🔍
08/29/2023 +22 days 🔍
08/29/2023 +0 days 🔍
01/24/2026 +879 days 🔍

Sourcesinfo

Product: github.com

Advisory: 2537
Status: Confirmed

CVE: CVE-2023-39562 (🔍)
GCVE (CVE): GCVE-0-2023-39562
GCVE (VulDB): GCVE-100-238219
EUVD: 🔍
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 08/29/2023 07:22
Updated: 01/24/2026 19:12
Changes: 08/29/2023 07:22 (43), 09/22/2023 08:46 (11), 01/24/2026 19:12 (17)
Complete: 🔍
Cache ID: 216::103

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