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https://issues.apache.org/jira/browse/DIRAPI-418?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17897573#comment-17897573
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Emmanuel Lécharny commented on DIRAPI-418:
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It's indeed different...
We are in a case where a part of a filter is shorter than expected, but the
decoder does not detect that properly...
> NullPointerException in Asn1Decoder
> -----------------------------------
>
> Key: DIRAPI-418
> URL: https://issues.apache.org/jira/browse/DIRAPI-418
> Project: Directory Client API
> Issue Type: Bug
> Affects Versions: 2.1.7
> Reporter: Andrey Slepykh
> Priority: Major
> Attachments: ReproducerDecodeNullPointerException.java
>
>
> Hi, we were fuzzing Asn1Decoder and have found NullPointerException in
> dencoding. This seems to be different from
> https://issues.apache.org/jira/browse/DIRAPI-414
> Steps to reproduce:
> 1. Download Apache Directory LDAP API v2.1.7:
> {code:bash}
> wget wget
> https://github.com/apache/directory-ldap-api/archive/refs/tags/2.1.7.tar.gz
> tar xf 2.1.7.tar.gz && rm 2.1.7.tar.gz
> {code}
> 2. Compile the project (we used jdk-11 and mvn-3.9.6):
> {code:bash}
> cd directory-ldap-api-2.1.7
> mvn clean package
> {code}
> 3. Get the reproducer:
> {code:bash}
> mkdir fuzz && cd fuzz
> mv <path/to/reproducer>/ReproducerDecodeNullPointerException.java .
> {code}
> 4. Compile the reproducer:
> {code:bash}
> javac -cp
> .:../../asn1/ber/target/classes/:../../asn1/api/target/classes/:../../ldap/codec/core/target/classes/:../../ldap/model/target/classes/:../../ldap/codec/core/target/classes/
> ./ReproducerDecodeNullPointerException.java
> {code}
> 5. Reproduce the exception:
> {code:bash}
> java -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
> ReproducerDecodeNullPointerException
> {code}
> Found by Linux Verification Center (portal.linuxtesting.ru) with jazzer.
> Author L.Reviakin (l.revia...@fobos-nt.ru)
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