FFmpeg libavcodec/evc_ps.c ref_pic_list_struct buffer overflow

CVSS Meta Temp Score
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CTI Interest Score
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5.9$0-$5k0.00

Summaryinfo

A vulnerability was found in FFmpeg. It has been classified as critical. The impacted element is the function ref_pic_list_struct of the file libavcodec/evc_ps.c. This manipulation causes buffer overflow. This vulnerability appears as CVE-2023-47470. The attack may be initiated remotely. There is no available exploit. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability classified as critical was found in FFmpeg (Multimedia Processing Software) (unknown version). Affected by this vulnerability is the function ref_pic_list_struct of the file libavcodec/evc_ps.c. The manipulation with an unknown input leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. As an impact it is known to affect availability. The summary by CVE is:

Buffer Overflow vulnerability in Ffmpeg before github commit 4565747056a11356210ed8edcecb920105e40b60 allows a remote attacker to achieve an out-of-array write, execute arbitrary code, and cause a denial of service (DoS) via the ref_pic_list_struct function in libavcodec/evc_ps.c

The weakness was presented 11/16/2023 as 4565747056a11356210ed8edcecb920105e40b60. The advisory is shared at github.com. This vulnerability is known as CVE-2023-47470 since 11/06/2023. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available.

Applying the patch 4565747056a11356210ed8edcecb920105e40b60 is able to eliminate this problem. The bugfix is ready for download at github.com.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-51581). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.0
VulDB Meta Temp Score: 5.9

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 4565747056a11356210ed8edcecb920105e40b60

Timelineinfo

11/06/2023 🔍
11/16/2023 +10 days 🔍
11/16/2023 +0 days 🔍
02/24/2026 +831 days 🔍

Sourcesinfo

Product: ffmpeg.org

Advisory: 4565747056a11356210ed8edcecb920105e40b60
Status: Confirmed

CVE: CVE-2023-47470 (🔍)
GCVE (CVE): GCVE-0-2023-47470
GCVE (VulDB): GCVE-100-245593
EUVD: 🔍

Entryinfo

Created: 11/16/2023 07:24
Updated: 02/24/2026 10:24
Changes: 11/16/2023 07:24 (42), 12/12/2023 14:16 (11), 08/11/2025 16:02 (16), 02/24/2026 10:24 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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