VDB-222216 · CVE-2023-25361 · EUVD-2023-29319

WebKitGTK up to 2.36.7 setNextSibling 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.
7.4	$0-$5k	0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in WebKitGTK up to 2.36.7. Impacted is the function WebCore::RenderLayer::setNextSibling. The manipulation results in use after free. This vulnerability is identified as CVE-2023-25361. The attack can be executed remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in WebKitGTK up to 2.36.7 (Web Browser). It has been classified as critical. Affected is the function WebCore::RenderLayer::setNextSibling. The manipulation with an unknown input leads to a use after free vulnerability. CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

A use-after-free vulnerability in WebCore::RenderLayer::setNextSibling in WebKitGTK before 2.36.8 allows attackers to execute code remotely.

The weakness was released 03/02/2023. The advisory is shared for download at bugs.webkit.org. This vulnerability is traded as CVE-2023-25361 since 02/06/2023. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available.

Upgrading to version 2.36.8 eliminates this vulnerability.

The vulnerability is also documented in the databases at EUVD (EUVD-2023-29319) and CERT Bund (WID-SEC-2023-1185). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

Debian Linux
Amazon Linux 2
Red Hat Enterprise Linux
Fedora Linux
Ubuntu Linux
SUSE Linux
Oracle Linux
Gentoo Linux
SUSE openSUSE
Red Hat OpenShift
RESF Rocky Linux

Productinfo

Type

Web Browser

Name

WebKitGTK

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.4

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
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: 🔍

Exploitinginfo

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

Physical: No
Local: No
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

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: WebKitGTK 2.36.8

Timelineinfo

02/06/2023 🔍
03/02/2023 +24 days 🔍
03/02/2023 +0 days 🔍
11/30/2025 +1004 days 🔍

Sourcesinfo

Advisory: bugs.webkit.org
Status: Confirmed

CVE: CVE-2023-25361 (🔍)
GCVE (CVE): GCVE-0-2023-25361
GCVE (VulDB): GCVE-100-222216
EUVD: 🔍
CERT Bund: WID-SEC-2023-1185 - Red Hat Enterprise Linux: Mehrere Schwachstellen

Entryinfo

Created: 03/02/2023 19:10
Updated: 11/30/2025 03:43
Changes: 03/02/2023 19:10 (39), 03/30/2023 17:53 (11), 03/07/2025 19:07 (19), 10/30/2025 17:26 (1), 11/30/2025 03:43 (7)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.