GHSA-52h2-m2cf-9jh6
linux-loader reading beyond EOF could lead to infinite loop
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| crates.io | linux-loader | < 0.8.1 | 0.8.1 |
Details
As written in the advisory (Markdown source, shown as plain text).
### Impact
The linux-loader crate used the offsets and sizes provided in the ELF headers to determine the offsets to read from. If those offsets pointed beyond the end of the file this could lead to an infinite loop. Virtual Machine Monitors using the `linux-loader` crate could enter an infinite loop if the ELF header of the kernel they are loading was modified in a malicious manner.
### Patches
The issue has been addressed in 0.8.1
### Workarounds
The issue can be mitigated by ensuring that only trusted kernel images are loaded or by verifying that the headers to not point beyond the end of the file.
### References
See: https://github.com/rust-vmm/linux-loader/pull/125
References
External links from the advisory. They lead to third-party sites.
- https://github.com/rust-vmm/linux-loader/security/advisories/GHSA-52h2-m2cf-9jh6
- https://nvd.nist.gov/vuln/detail/CVE-2022-23523
- https://github.com/rust-vmm/linux-loader/pull/125
- https://github.com/rust-vmm/linux-loader/commit/a44f152da4f38c538ed492b1efa8515be2047db2
- https://github.com/rust-vmm/linux-loader