exempi up to 2.5.0 webp File WEBP_Support.cpp buffer overflow

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability was found in exempi up to 2.5.0. It has been declared as critical. Affected by this vulnerability is an unknown functionality of the file WEBP_Support.cpp of the component webp File Handler. Executing a manipulation can lead to buffer overflow. The identification of this vulnerability is CVE-2020-18652. The attack may be launched remotely. There is no exploit available. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability classified as critical was found in exempi up to 2.5.0. This vulnerability affects some unknown processing of the file WEBP_Support.cpp of the component webp File Handler. 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. CVE summarizes:

Buffer Overflow vulnerability in WEBP_Support.cpp in exempi 2.5.0 and earlier allows remote attackers to cause a denial of service via opening of crafted webp file.

The weakness was shared 08/23/2023 as 12. The advisory is available at gitlab.freedesktop.org. This vulnerability was named CVE-2020-18652 since 08/13/2020. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 252335 (Linux Distros Unpatched Vulnerability : CVE-2020-18652), which helps to determine the existence of the flaw in a target environment.

Applying the patch acee2894ceb91616543927c2a6e45050c60f98f7 is able to eliminate this problem. The bugfix is ready for download at gitlab.freedesktop.org.

The vulnerability is also documented in the databases at Tenable (252335) and CERT Bund (WID-SEC-2024-1213). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Fedora Linux
  • Oracle Linux

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

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

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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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: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 252335
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2020-18652

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: acee2894ceb91616543927c2a6e45050c60f98f7

Timelineinfo

08/13/2020 🔍
08/23/2023 +1105 days 🔍
08/23/2023 +0 days 🔍
09/06/2025 +745 days 🔍

Sourcesinfo

Advisory: 12
Status: Confirmed

CVE: CVE-2020-18652 (🔍)
GCVE (CVE): GCVE-0-2020-18652
GCVE (VulDB): GCVE-100-237754
CERT Bund: WID-SEC-2024-1213 - Red Hat Enterprise Linux: Mehrere Schwachstellen

Entryinfo

Created: 08/23/2023 09:59
Updated: 09/06/2025 16:42
Changes: 08/23/2023 09:59 (42), 09/14/2023 18:51 (11), 08/20/2025 09:06 (17), 09/06/2025 16:42 (7)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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