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Ubuntu 22.04 LTS OpenSBI Denial of Service Vulnern USN-8853

Ubuntu 22.04 LTS OpenSBI Denial of Service Vulnern USN-8853

Linuxsecurity •LinuxSecurity Advisories • September 30, 2026

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OpenSBI could be made to crash if it received specially crafted input. Software Description: - opensbi: RISC-V Open Source Supervisor Binary Interface Details: It was discovered that OpenSBI did not properly validate the counter index mask in SBI PMU extension requests. An attacker could use this issue to cause a denial of service.

OpenSBI could be made to crash if it received specially crafted

Software Description:

- opensbi: RISC-V Open Source Supervisor Binary Interface

It was discovered that OpenSBI did not properly validate the counter index

mask in SBI PMU extension requests. An attacker could use this issue to

cause a denial of service.

The problem can be corrected by updating your system to the following package versions: Ubuntu 22.04 LTS opensbi 1.3-1ubuntu0.22.04.3 In general, a standard system update will make all the necessary changes.

Ubuntu Security Notice USN-8853-1

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Extracted Entities

Attack Types (1)

Companies (1)