CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
EPSS
Percentile
40.1%
Sending an invalid Content Type header leads to memory leak in DefaultArgumentConversionContext
as this type is erroneously used in static state.
The problem is patched in Micronaut 3.2.7 and above.
The default content type binder can be replaced in an existing Micronaut application to mitigate the issue:
package example;
import java.util.List;
import io.micronaut.context.annotation.Replaces;
import io.micronaut.core.convert.ConversionService;
import io.micronaut.http.MediaType;
import io.micronaut.http.bind.DefaultRequestBinderRegistry;
import io.micronaut.http.bind.binders.RequestArgumentBinder;
import jakarta.inject.Singleton;
@Singleton
@Replaces(DefaultRequestBinderRegistry.class)
class FixedRequestBinderRegistry extends DefaultRequestBinderRegistry {
public FixedRequestBinderRegistry(ConversionService conversionService,
List<RequestArgumentBinder> binders) {
super(conversionService, binders);
}
@Override
protected void registerDefaultConverters(ConversionService<?> conversionService) {
super.registerDefaultConverters(conversionService);
conversionService.addConverter(CharSequence.class, MediaType.class, charSequence -> {
try {
return MediaType.of(charSequence);
} catch (IllegalArgumentException e) {
return null;
}
});
}
}
Commit that introduced the vulnerability https://github.com/micronaut-projects/micronaut-core/commit/b8ec32c311689667c69ae7d9f9c3b3a8abc96fe3
If you have any questions or comments about this advisory:
Vendor | Product | Version | CPE |
---|---|---|---|
io.micronaut | micronaut-http | * | cpe:2.3:a:io.micronaut:micronaut-http:*:*:*:*:*:*:*:* |
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
EPSS
Percentile
40.1%