Google fixes one more Chrome zero-day exploited at Pwn2Own

Google fixes one more Chrome zero-day exploited at Pwn2Own

April 3, 2024 at 12:40PM

Google has resolved a zero-day vulnerability in Chrome, tracked as CVE-2024-3159, stemming from an out-of-bounds read weakness in the Chrome V8 JavaScript engine. The flaw allowed remote attackers to gain unauthorized access to data or trigger a crash. Google also addressed two other Chrome zero-days and two Android zero-days, underscoring ongoing security challenges.

Summary of Meeting Notes:

– Google fixed a zero-day vulnerability (CVE-2024-3159) in the Chrome browser related to an out-of-bounds read weakness in the Chrome V8 JavaScript engine.
– Remote attackers could exploit the vulnerability using crafted HTML pages to gain access to data beyond the memory buffer, potentially leading to sensitive information leakage or a system crash.
– Security researchers demoed the zero-day exploit at Pwn2Own Vancouver 2024, and Google has now released fixes for the vulnerability in Google Chrome stable channel versions.
– Earlier, Google also fixed two other Chrome zero-days (CVE-2024-2887 and CVE-2024-2886) exploited at Pwn2Own Vancouver 2024, while Mozilla patched two Firefox zero-days.
– Vendors typically take time to fix Pwn2Own zero-days since bug details are publicly disclosed after 90 days by Trend Micro’s Zero Day Initiative.
– In total, Google patched four Chrome zero-days this year, with the fourth addressed in January.
– Additionally, Google fixed two Android zero-days exploited by forensic firms.

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