Google this week announced a Chrome 111 update that brings patches for eight vulnerabilities, including seven flaws that were reported by external researchers.
All seven of the externally reported issues are high-severity memory safety bugs, with four of them described as use-after-free vulnerabilities, a type of bug that could lead to arbitrary code execution, data corruption, or denial of service.
Based on the bug bounty reward handed out ($10,000), the most important of these vulnerabilities is CVE-2023-1528, a use-after-free flaw in Chrome’s Passwords component.
“It hides the password leak detection dialog before displaying the account selector, which means that the password leak detection dialog shouldn’t be opened before you have selected your Google account. An attacker can gain access to the vulnerable password,” Action1 VP Mike Walters told SecurityWeek in an emailed comment.
Next in line is CVE-2023-1529, an out-of-bounds memory access in WebHID, for which Google paid an $8,000 bug bounty.
“The vulnerability can handle empty input reports. It’s possible for a HID device to define its report descriptor so that one or more reports have no data fields within the report. When these reports are received, the report buffer should contain only the report ID byte and no other data. This can be used to define which reports have some data and to filter out reports without data,” Walters said.
Three other use-after-free issues were addressed in PDF, in the ANGLE graphics engine, and in WebProtect. The internet giant says it paid out a $7,000 bounty for the PDF flaw, but has yet to determine the amounts to be paid for the other two bugs.
The latest Chrome 111 update also brings patches for two out-of-bounds read issues in GPU Video and ANGLE. Per Google’s policy, no bug bounty reward will be issued for these flaws, as they were reported by Google Project Zero security researchers.
The internet giant made no mention of any of these vulnerabilities being exploited in attacks.
The latest Chrome release is now rolling out as version 111.0.5563.110 for Mac and Linux and as versions 111.0.5563.110/.111 for Windows.
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Related: Chrome 111 Patches 40 Vulnerabilities
Related: Chrome 110 Patches 15 Vulnerabilities