CVE-2022-23523

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

MEDIUM
5.5
CVSS Score
Published: December 13, 2022 at 07:41 AM UTC
Updated: June 17, 2026 at 04:30 AM UTC
2 products affected across 2 vendorsLinux LoaderLoader Project Linux Loader

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 0.8.1
Affected range stops below 0.8.1, so it looks safe — our inference, not a vendor statement
v < 0.8.1
Affected range stops below 0.8.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (2)

x_refsource_MISCIssue TrackingPatchThird Party Advisory
https://github.com/rust-vmm/linux-loader/pull/125

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-119CWE-125NVD-CWE-Other

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