CVE-2019-8720: WebKitGTK Memory Corruption Vulnerability

Vulnerability summary

CVE-2019-8720 is a high (CVSS 8.8) vulnerability in WebKitGTK. It is known to be exploited: CISA lists it, first on 23-05-2022. EPSS estimates a 1.56% chance of exploitation in the next 30 days, higher than 74.7% of scored vulnerabilities.

Timeline

1. 23-05-2022
   Added to CISA KEVWebKitGTK Memory Corruption Vulnerability
2. 13-06-2022
   CISA remediation dueApply updates per vendor instructions.
3. 06-03-2023
   PublishedVulnerability first disclosed.
4. 07-10-2026
   Last modifiedVulnerability information updated.

Description

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.

• CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferThe product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.