Description
An issue was discovered in OpenSBI 1.3 allowing attackers to cause a denial of service via crafted request to the SBI function #2 or the 'Find and configure a matching counter' function of SBI PMU extension.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | opensbi | 1.7-1 | — |
| Debian 13 | opensbi | No fix yet | — |
| Debian 12 | opensbi | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 22.04 LTS | opensbi | 1.3-1ubuntu0.22.04.3 | USN-8853-1 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | qemu | 0.0.0-0 | — |
Advisories 1
- USN-8853-1 opensbi vulnerability Ubuntu Security Notices (USN) · Oct 1, 2026