WebKitGTK Memory Corruption Vulnerability
A vulnerability was found in WebKit. The flaw is triggered when processing maliciously crafted web content that may lead to arbitrary code execution. Improved memory handling addresses the multiple memory corruption issues.
Severity = CVSS. Probability = EPSS (FIRST). Exploitation = public signals: KEV, EUVD, ransomware, EPSS above 10 %, no account required.
Exploitation probability EPSS · FIRST
Exploitation signals 3 / 5
- KEV catalog (CISA)23 May 2022
- Exploited in EUVD (ENISA)23 May 2022
- Used by ransomwareno
- EPSS above 10 %1.6%
- No account, over the networkyes
What to do
Fix
Apply the vendor’s fix as soon as it is available.
CISA guidance: Apply updates per vendor instructions.
Meanwhile
Take the service off the internet or restrict access to it, watch the logs and look for signs of compromise.
Manufacturers (CRA)
Exploited vulnerability in your product: early warning to ENISA within 24 h, then notification within 72 h (Article 14 of the Cyber Resilience Act). The CRA explained
Affected products
- Fixed in webkitgtk 2.26.0
Open source packages OSV
Affected libraries according to OSV, with fixed versions.
Timeline
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Exploitation reported (ENISA)
-
Added to the KEV catalog
-
CISA remediation due date
-
Published