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Excessive-Severity Reminiscence Security Bugs Patched With Newest Chrome 108 Replace

By Ionut Arghire on December 14, 2022

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Google this week introduced a Chrome replace that resolves eight vulnerabilities within the in style browser, together with 5 reported by exterior researchers.

All 5 safety defects are use-after-free flaws, a kind of reminiscence security bug that has been prevalent in Chrome over the previous years, and which Google has long-battled to get rid of.

In line with Google’s advisory, 4 of those points are high-severity bugs, impacting parts reminiscent of Blink Media, Mojo IPC, Blink Frames, and Aura.

The vulnerabilities have been issued CVE identifiers CVE-2022-4436 to CVE-2022-4439 and are accompanied by CVE-2022-4440, a medium-severity use-after-free.

Google says it has paid $17,500 in bug bounties to the reporting researchers, however the ultimate quantity is perhaps greater, as solely 4 out of 5 rewards have been disclosed.

The most recent Chrome browser launch is at present rolling out to Mac and Linux customers as model 108.0.5359.124, and to Home windows customers as model 108.0.5359.124/.125.

Google makes no point out of any of those vulnerabilities being exploited in malicious assaults. Up to now, there have been 9 documented Chrome zero-day flaws in 2022.

Associated to the inaccurate use of dynamic reminiscence whereas a program is working, use-after-free points exist as a result of, after liberating a reminiscence location, an software won’t clear the pointer to that location.

An attacker able to use a use-after-free vulnerability could possibly crash the appliance, corrupt information, or execute arbitrary code on the machine. In Chrome, use-after-free flaws could also be used to flee the browser sandbox, which requires the exploitation of extra safety defects.

Over the previous couple of years, Google introduced a number of efforts to get rid of reminiscence security bugs in each Android and Chrome, and just lately introduced improved protections in opposition to the exploitation of such vulnerabilities.

Associated: Chrome 108 Patches Excessive-Severity Reminiscence Security Bugs

Associated: Google Patches Eighth Chrome Zero-Day of 2022

Associated: NSA Publishes Steering on Mitigating Software program Reminiscence Security Points

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