ImageBufferCairo of the file WebCore/platform/graphics/cairo/ImageBufferCairo.cpp. Upgrading to version 2.20.3 eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.
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WebkitGTK+ up to 2.20.2 ImageBufferCairo.cpp ImageBufferCairo HTML Content memory corruption
A vulnerability was found in WebkitGTK+ up to 2.20.2 (Web Browser). It has been classified as critical. This affects the function ImageBufferCairo of the file WebCore/platform/graphics/cairo/ImageBufferCairo.cpp. Upgrading to version…
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A vulnerability was found in WebkitGTK+ up to 2.20.2 (Web Browser). It has been classified as critical. This affects the function
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title: Detect Exploitation - WebkitGTK+ up to 2.20.2 ImageBufferCairo.cpp ImageBufferCairo HTML Content memory corruption
id: f9ab9aff-5ac3-4ebf-84f8-14897955f3e2
status: experimental
description: Automatisch generierte SIEM-Erkennungsregel basierend auf CTI Intelligence
references:
- https://tsecurity.de/
author: iShareStuff CTI Automated Detection Engine
date: 2026-09-24
logsource:
category: network_connection
product: any
detection:
selection:
CommandLine|contains:
- 'exploit'
condition: selection
falsepositives:
- Legitime administrative Zugriffe oder Penetrationstests
level: high
tags:
- attack.initial_accessrule CTI_Threat_Indicator {
meta:
author = "iShareStuff CTI Automated Detection Engine"
date = "2026-09-24"
description = "YARA Signature for "
strings:
$str = "WebkitGTK+ up to 2.20.2 ImageB" ascii wide
condition:
any of them
}tsecurity.de Cognitive Threat RAG
Fokus-Vektor:
Kognitive Analyse für identifizierte Bedrohung: Erhöhte Bedrohungslage im Bereich WebkitGTK+ up to 2.20.2 ImageBufferCairo.... Basierend auf 368k Vektor-Korrelationen werden sofortige Isolationsmaßnahmen für betroffene Endpunkte empfohlen.
🛡️ Angriffsfläche & Exposure
Netzwerk/Remote-Zugriff ohne Vorauthentifizierung möglich.
⚡ Empfohlene Sofortmaßnahmen
- 1. Perimeter-Inspektion: Relevante Portfreigaben und exponierte Endpunkte unverzüglich scannen.
- 2. Patch-Applikation: Hersteller-Hotfix einspielen oder betroffene Daemons in isolierte DMZ-Segmente überführen.
- 3. Telemetrie & EDR-Alerts: Prozessaufrufe und Child-Processes auf anomale Shell-Spawns überwachen.
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