CVE-2024-8636: google chrome Heap-based Buffer Overflow

Vulnerability summary

CVE-2024-8636 is a high (CVSS 8.8) Heap-based Buffer Overflow vulnerability in google chrome. EPSS estimates a 0.65% chance of exploitation in the next 30 days, higher than 49.9% of scored vulnerabilities.

Timeline

1. 11-09-2024
   PublishedVulnerability first disclosed.
2. 13-09-2024
   Last modifiedVulnerability information updated.

Description

Heap buffer overflow in Skia in Google Chrome prior to 128.0.6613.137 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)

• CWE-122Heap-based Buffer OverflowA heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
• CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.
• CWE-416Use After FreeThe product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.