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https://issues.apache.org/jira/browse/DIRAPI-403?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17851487#comment-17851487
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Emmanuel Lécharny commented on DIRAPI-403:
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The maxPDUsize parameter was not used to check if the value size is to be
greater that the configured value, leading ot huge byte[] to be allocated.
The fix now checks this limit and throw an exception if exceeded.
A test was added with a maxPDUSize set to 1024 bytes.
> OutOfMemory error in Asn1Decoder for LDAP messages
> --------------------------------------------------
>
> Key: DIRAPI-403
> URL: https://issues.apache.org/jira/browse/DIRAPI-403
> Project: Directory Client API
> Issue Type: Bug
> Affects Versions: 2.1.6
> Reporter: Andrey Slepykh
> Priority: Major
> Attachments: OutOfMemoryReproducer.java
>
>
> Hi, we have found Out Of Memory error while fuzzing Asn1Decoder for LDAP
> messages.
> Steps to reproduce:
> 1. Download Apache Directory LDAP API v2.1.6:
> {code:java}
> wget wget
> https://github.com/apache/directory-ldap-api/archive/refs/tags/2.1.6.tar.gz
> tar xf 2.1.6.tar.gz && rm 2.1.6.tar.gz{code}
> 2. Compile the project (we used jdk-11 and mvn-3.9.6):
> {code:java}
> cd directory-ldap-api-2.1.6
> mvn clean package{code}
> 3. Get the reproducer:
> {code:java}
> mkdir fuzz && cd fuzz
> mv <path/to/reproducer>/OutOfMemoryReproducer.java .{code}
> 4. Compile the reproducer
> {code:java}
> javac -cp
> ../asn1/ber/target/classes/:../asn1/api/target/classes/:../ldap/codec/core/target/classes/:../ldap/model/target/classes/:../ldap/codec/core/target/classes/
> ./OutOfMemoryReproducer.java{code}
> 5. Reproduce the error:
> {code:java}
> java -Xmx2000m -cp
> .:../asn1/ber/target/classes/:../asn1/api/target/classes/:../ldap/codec/core/target/classes/:../ldap/model/target/classes/:../ldap/codec/core/target/classes/:../util/target/classes/:../util/target/classes/:../integ-osgi/target/dependency/slf4j-api-1.7.36.jar:../i18n/target/classes/:../integ-osgi/target/dependency/mina-core-2.2.3.jar
> OutOfMemoryReproducer{code}
> We think that 2000 MB is a reasonable limit and the program should not take
> more.
> Found by Linux Verification Center (portal.linuxtesting.ru) with Jazzer.
> Author L.Reviakin (l.revia...@fobos-nt.ru)
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