CVE-2022-23523
Last modified
CVE-2022-23523 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. 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. EPSS estimates a 0.21% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linux-Loader Project | Linux-Loader | < 0.8.1 |
References
- https://github.com/rust-vmm/linux-loader/pull/125Issue Tracking, Patch, Third Party Advisory
- https://github.com/rust-vmm/linux-loader/security/advisories/GHSA-52h2-m2cf-9jh6Issue Tracking, Third Party Advisory
- https://github.com/rust-vmm/linux-loader/pull/125Issue Tracking, Patch, Third Party Advisory
- https://github.com/rust-vmm/linux-loader/security/advisories/GHSA-52h2-m2cf-9jh6Issue Tracking, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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