Ubuntu Security Update USN-5309-1: virglrenderer vulnerabilities

[LinuxBot]

It was discovered that virglrenderer incorrectly handled memory. An attacker inside a guest could use this issue to cause virglrenderer to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2022-0135) It was discovered that virglrenderer incorrectly initialized memory. An attacker inside a guest could possibly use this issue to obtain sensitive host information. (CVE-2022-0175)

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