WebKitGTK up to 2.36.7 repaintBlockSelectionGaps use after free

CVSS Meta Temp Score
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CTI Interest Score
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6.0$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in WebKitGTK up to 2.36.7. The affected element is the function WebCore::RenderLayer::repaintBlockSelectionGaps. This manipulation causes use after free. This vulnerability is tracked as CVE-2023-25362. The attack is possible to be carried out remotely. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in WebKitGTK up to 2.36.7 (Web Browser). It has been declared as critical. Affected by this vulnerability is the function WebCore::RenderLayer::repaintBlockSelectionGaps. 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 confidentiality, integrity, and availability. The summary by CVE is:

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

The weakness was disclosed 03/02/2023. The advisory is shared at bugs.webkit.org. This vulnerability is known as CVE-2023-25362 since 02/06/2023. It demands that the victim is doing some kind of user interaction. Technical details are known, 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-2023-29320) and CERT Bund (WID-SEC-2023-1185). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

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

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: No
Local: No
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: 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-2023-25362 (🔍)
GCVE (CVE): GCVE-0-2023-25362
GCVE (VulDB): GCVE-100-222217
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), 10/30/2025 17:26 (16), 11/30/2025 03:43 (7)
Complete: 🔍
Cache ID: 216::103

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

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