CVE-2022-23523

rust-vmm linux-loader vulnerable to Out-of-bounds Read

Description

In versions prior to 0.8.1, the linux-loader crate uses the offsets and sizes provided in the ELF headers to determine the offsets to read from. If those offsets point beyond the end of the file this could lead to Virtual Machine Monitors using the `linux-loader` crate entering an infinite loop if the ELF header of the kernel they are loading was modified in a malicious manner. This issue has been addressed in 0.8.1. The issue can be mitigated by ensuring that only trusted kernel images are loaded or by verifying that the headers do not point beyond the end of the file.

Category

4.0
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.02%
Third-Party Advisory github.com Third-Party Advisory github.com
Affected: rust-vmm linux-loader
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2022-23523?
CVE-2022-23523 has been scored as a medium severity vulnerability.
How to fix CVE-2022-23523?
To fix CVE-2022-23523, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-23523 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-23523 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-23523?
CVE-2022-23523 affects rust-vmm linux-loader.
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