SB2026032101 - Debian update for webkit2gtk

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Main Vulnerability Database SB2026032101

SB2026032101 - Debian update for webkit2gtk

Published: March 21, 2026

Security Bulletin ID SB2026032101
Severity
Medium
Patch available
YES
Number of vulnerabilities 9
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 22% Low 78%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 9 secuirty vulnerabilities.


1) Memory corruption (CVE-ID: CVE-2025-43214)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error in WebKit. A remote attacker can trick the victim into opening a specially crafted file and crash the browser.


2) Use-after-free (CVE-ID: CVE-2025-43457)

The vulnerability allows a remote attacker to perform a denial of service attack.

The vulnerability exists due to a use-after-free error in WebKit. A remote attacker can trick the victim into visiting a specially crafted website and crash the browser.


3) Use-after-free (CVE-ID: CVE-2025-43511)

The vulnerability allows a remote attacker to perform a denial of service attack. 

The vulnerability exists due to a use-after-free error in WebKit Web Inspector. A remote attacker can trick the victim into visiting a specially crafted website and perform a denial of service attack.



4) Buffer overflow (CVE-ID: CVE-2026-20608)

The vulnerability allows a remote attacker to perform a denial of service attack.

The vulnerability exists due to a boundary error in WebKit when processing HTML content. A remote attacker can trick the victim into visiting a specially crafted website and crash the browser. 


5) Buffer overflow (CVE-ID: CVE-2026-20635)

The vulnerability allows a remote attacker to perform a denial of service attack.

The vulnerability exists due to a boundary error in WebKit when processing HTML content. A remote attacker can trick the victim into visiting a specially crafted website and crash the browser. 


6) Buffer overflow (CVE-ID: CVE-2026-20636)

The vulnerability allows a remote attacker to perform a denial of service attack.

The vulnerability exists due to a boundary error in WebKit when processing HTML content. A remote attacker can trick the victim into visiting a specially crafted website and crash the browser. 


7) Buffer overflow (CVE-ID: CVE-2026-20644)

The vulnerability allows a remote attacker to perform a denial of service attack.

The vulnerability exists due to a boundary error in WebKit when processing HTML content. A remote attacker can trick the victim into visiting a specially crafted website and crash the browser. 


8) Buffer overflow (CVE-ID: CVE-2026-20652)

The vulnerability allows a remote attacker to perform a denial of service attack.

The vulnerability exists due to a boundary error in WebKit when processing HTML content. A remote attacker can trick the victim into visiting a specially crafted website and crash the browser. 


9) State Issues (CVE-ID: CVE-2026-20676)

The vulnerability allows a remote attacker to track website users.

The vulnerability exists due to a state issue in WebKit. A remote attacker can track users through Safari web extensions.


Remediation

Install update from vendor's website.

References