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Medium · 5.9 CVE-2022-31139 EUVD-2022-6324GHSA-cr6p-23cf-w9g9

No security checking for UnsafeAccess.getInstance() in UnsafeAccessor

Published Jul 11, 2022 · Updated Apr 23, 2025 · Assigned by GitHub_M

Description

UnsafeAccessor (UA) is a bridge to access jdk.internal.misc.Unsafe & sun.misc.Unsafe. Normally, if UA is loaded as a named module, the internal data of UA is protected by JVM and others can only access UA via UA's standard API. The main application can set up `SecurityCheck.AccessLimiter` for UA to limit access to UA. Starting with version 1.4.0 and prior to version 1.7.0, when `SecurityCheck.AccessLimiter` is set up, untrusted code can access UA without limitation, even when UA is loaded as a named module. This issue does not affect those for whom `SecurityCheck.AccessLimiter` is not set up. Version 1.7.0 contains a patch.

Affected products

VendorProductAffectedFixed
Karlatemp UnsafeAccessor >= 1.4.0, < 1.7.0 —

Affected packages

EcosystemPackageAffectedFixedRecord
Maven io.github.karlatemp:unsafe-accessor >= 1.4.0, < 1.7.0 1.7.0 GHSA-cr6p-23cf-w9g9

References