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apache-directory-api

Apache Directory LDAP API

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general
  • source: apache-directory-api (main)
  • version: 2.1.2-2
  • maintainer: Debian Java Maintainers (archive) (DMD)
  • uploaders: Emmanuel Bourg [DMD]
  • arch: all
  • std-ver: 4.7.0
  • VCS: Git (Browse, QA)
versions [more versions can be listed by madison] [old versions available from snapshot.debian.org]
[pool directory]
  • o-o-stable: 1.0.0-2
  • oldstable: 2.1.2-1
  • stable: 2.1.2-2
  • testing: 2.1.2-2
  • unstable: 2.1.2-2
versioned links
  • 1.0.0-2: [.dsc, use dget on this link to retrieve source package] [changelog] [copyright] [rules] [control]
  • 2.1.2-1: [.dsc, use dget on this link to retrieve source package] [changelog] [copyright] [rules] [control]
  • 2.1.2-2: [.dsc, use dget on this link to retrieve source package] [changelog] [copyright] [rules] [control]
binaries
  • libapache-directory-api-java
action needed
A new upstream version is available: 2.1.9 high
A new upstream version 2.1.9 is available, you should consider packaging it.
Created: 2025-11-26 Last update: 2026-10-09 20:30
7 security issues in sid high

There are 7 open security issues in sid.

7 important issues:
  • CVE-2026-35563: It was identified that the LDAP client implementation in version 2.1.7 does not verify if the server certificate matches the intended LDAP hostname. While the underlying code validates the certificate chain against a trusted authority, the absence of endpoint identification allows a valid certificate issued for an entirely unrelated host to be improperly accepted. This oversight leaves the connection highly vulnerable to server impersonation and complete connection compromise. The root cause of this vulnerability lies in the incomplete TLS server identity verification within the LDAP client implementation. The attacker requires MITM capability on the network to exploit this vulnerability. This attacker must be able to present a certificate trusted by the client's configured trust store. The hostname verification has been enforced in the new version of the LDAP API
  • CVE-2026-102731: Memory allocation with excessive size value vulnerability in Apache Directory LDAP API. A malicious peer (or a MITM) can send a small BER-encoded response causing a large memory allocation before any data is received. This can lead to an OutOfMemoryError and denial of service. The client JVM OOMs (OutOfMemoryError bypasses the DecoderException handlers) or pins the large allocation per connection while the attacker stalls. A handful of connections exhausts any heap. The same bytes from an unauthenticated pre-bind client hit any embedding server that did not set MAX_PDU_SIZE_ATTR. This issue affects Apache Directory LDAP API: from 1.2.0 before 1.2.9. Users are recommended to upgrade to version 1.2.9, which fixes the issue.
  • CVE-2026-103552: Stack Overflow vulnerability in Apache Directory LDAP API. Before binding, a client can send a deeply nested search filter that overflows the stack in the server's decoder. This issue affects Apache Directory LDAP API: from 1.2.0 before 1.2.9. Users are recommended to upgrade to version 1.2.9, which fixes the issue.
  • CVE-2026-103877: Deserialization of Untrusted Data vulnerability in Apache Directory LDAP API. A rogue/compromised LDAP server (or pre-TLS MITM) can answer a client's loadSchema() subschema search with a schema object that contains a serialized Java class, allowing some potential RCE.  This issue affects Apache Directory LDAP API: from 2.1.0 before 2.1.9. Users are recommended to upgrade to version 2.1.9, which fixes the issue.
  • CVE-2026-103878: Cleartext transmission of sensitive information vulnerability in Apache Directory LDAP API. A StartTLS extended operation started after a Search request has been sent can lead to receive data in plain text before the TLS Handshake has been completed. This issue affects Apache Directory LDAP API: from 2.1.0 before 2.1.9. Users are recommended to upgrade to version 2.1.9, which fixes the issue.
  • CVE-2026-103880: Asymmetric Resource Consumption vulnerability in Apache Directory LDAP API. Storing a password using the bcrypt algorithm with a high force like 30 in a LDAP server that supports this algorithm will cause the server CPU to  run for hours checking the credentials. A bounded cost should be enforced to avoid a server DOS. This issue affects Apache Directory LDAP API: from 2.1.0 before 2.1.9. Users are recommended to upgrade to version 2.1.9, which fixes the issue.
  • CVE-2026-103885: Asymmetric Resource Consumption vulnerability in Apache Directory LDAP API. A LDAP server using the LDAP API (like Apache DS) may consume 100% of a CPU core indefinitely when processing some badly crafted Telephone Numbers. This issue affects Apache Directory LDAP API: from 2.1.0 before 2.1.9. Users are recommended to upgrade to version 2.1.9, which fixes the issue.
Created: 2026-06-01 Last update: 2026-10-07 11:30
7 security issues in forky high

There are 7 open security issues in forky.

7 important issues:
  • CVE-2026-35563: It was identified that the LDAP client implementation in version 2.1.7 does not verify if the server certificate matches the intended LDAP hostname. While the underlying code validates the certificate chain against a trusted authority, the absence of endpoint identification allows a valid certificate issued for an entirely unrelated host to be improperly accepted. This oversight leaves the connection highly vulnerable to server impersonation and complete connection compromise. The root cause of this vulnerability lies in the incomplete TLS server identity verification within the LDAP client implementation. The attacker requires MITM capability on the network to exploit this vulnerability. This attacker must be able to present a certificate trusted by the client's configured trust store. The hostname verification has been enforced in the new version of the LDAP API
  • CVE-2026-102731: Memory allocation with excessive size value vulnerability in Apache Directory LDAP API. A malicious peer (or a MITM) can send a small BER-encoded response causing a large memory allocation before any data is received. This can lead to an OutOfMemoryError and denial of service. The client JVM OOMs (OutOfMemoryError bypasses the DecoderException handlers) or pins the large allocation per connection while the attacker stalls. A handful of connections exhausts any heap. The same bytes from an unauthenticated pre-bind client hit any embedding server that did not set MAX_PDU_SIZE_ATTR. This issue affects Apache Directory LDAP API: from 1.2.0 before 1.2.9. Users are recommended to upgrade to version 1.2.9, which fixes the issue.
  • CVE-2026-103552: Stack Overflow vulnerability in Apache Directory LDAP API. Before binding, a client can send a deeply nested search filter that overflows the stack in the server's decoder. This issue affects Apache Directory LDAP API: from 1.2.0 before 1.2.9. Users are recommended to upgrade to version 1.2.9, which fixes the issue.
  • CVE-2026-103877: Deserialization of Untrusted Data vulnerability in Apache Directory LDAP API. A rogue/compromised LDAP server (or pre-TLS MITM) can answer a client's loadSchema() subschema search with a schema object that contains a serialized Java class, allowing some potential RCE.  This issue affects Apache Directory LDAP API: from 2.1.0 before 2.1.9. Users are recommended to upgrade to version 2.1.9, which fixes the issue.
  • CVE-2026-103878: Cleartext transmission of sensitive information vulnerability in Apache Directory LDAP API. A StartTLS extended operation started after a Search request has been sent can lead to receive data in plain text before the TLS Handshake has been completed. This issue affects Apache Directory LDAP API: from 2.1.0 before 2.1.9. Users are recommended to upgrade to version 2.1.9, which fixes the issue.
  • CVE-2026-103880: Asymmetric Resource Consumption vulnerability in Apache Directory LDAP API. Storing a password using the bcrypt algorithm with a high force like 30 in a LDAP server that supports this algorithm will cause the server CPU to  run for hours checking the credentials. A bounded cost should be enforced to avoid a server DOS. This issue affects Apache Directory LDAP API: from 2.1.0 before 2.1.9. Users are recommended to upgrade to version 2.1.9, which fixes the issue.
  • CVE-2026-103885: Asymmetric Resource Consumption vulnerability in Apache Directory LDAP API. A LDAP server using the LDAP API (like Apache DS) may consume 100% of a CPU core indefinitely when processing some badly crafted Telephone Numbers. This issue affects Apache Directory LDAP API: from 2.1.0 before 2.1.9. Users are recommended to upgrade to version 2.1.9, which fixes the issue.
Created: 2026-06-01 Last update: 2026-10-07 11:30
2 security issues in bullseye high

There are 2 open security issues in bullseye.

1 important issue:
  • CVE-2018-1337: In Apache Directory LDAP API before 1.0.2, a bug in the way the SSL Filter was setup made it possible for another thread to use the connection before the TLS layer has been established, if the connection has already been used and put back in a pool of connections, leading to leaking any information contained in this request (including the credentials when sending a BIND request).
1 issue postponed or untriaged:
  • CVE-2026-35563: (postponed; to be fixed through a stable update) It was identified that the LDAP client implementation in version 2.1.7 does not verify if the server certificate matches the intended LDAP hostname. While the underlying code validates the certificate chain against a trusted authority, the absence of endpoint identification allows a valid certificate issued for an entirely unrelated host to be improperly accepted. This oversight leaves the connection highly vulnerable to server impersonation and complete connection compromise. The root cause of this vulnerability lies in the incomplete TLS server identity verification within the LDAP client implementation. The attacker requires MITM capability on the network to exploit this vulnerability. This attacker must be able to present a certificate trusted by the client's configured trust store. The hostname verification has been enforced in the new version of the LDAP API
Created: 2026-06-01 Last update: 2026-08-06 17:30
version in VCS is newer than in repository, is it time to upload? normal
vcswatch reports that this package seems to have a new changelog entry (version 2.1.9-1, distribution UNRELEASED) and new commits in its VCS. You should consider whether it's time to make an upload.

Here are the relevant commit messages:
commit 7dc2a9b1d9de355c96cfff08521f171862332aa0
Author: Bastien Roucariès <rouca@debian.org>
Date:   Mon Oct 5 10:37:22 2026 +0200

    Add salsa CI

commit e7fdc685975b074807a5b7a65c0583076dc781f9
Author: Bastien Roucariès <rouca@debian.org>
Date:   Mon Oct 5 10:36:10 2026 +0200

    Team upload

commit b6dacbe749a17b684fbde65999e0f8abe5c66200
Merge: c47c4ff 40b9b18
Author: Bastien Roucariès <rouca@debian.org>
Date:   Mon Oct 5 10:34:55 2026 +0200

    Update upstream source from tag 'upstream/2.1.9'
    
    Update to upstream version '2.1.9'
    with Debian dir d1c04dc129b24387c88220b5ddde2096d2a5d94e

commit 40b9b18a3b92575c20dca545225ce9c92f00b939
Author: Bastien Roucariès <rouca@debian.org>
Date:   Mon Oct 5 10:34:51 2026 +0200

    New upstream version 2.1.9

commit c47c4ffbe1f5517c629da9be99c6833eb81d5a76
Author: Bastien Roucariès <rouca@debian.org>
Date:   Mon Oct 5 10:34:01 2026 +0200

    Modernize watch
Created: 2026-10-05 Last update: 2026-10-05 10:32
lintian reports 2 warnings normal
Lintian reports 2 warnings about this package. You should make the package lintian clean getting rid of them.
Created: 2022-12-27 Last update: 2022-12-27 13:06
7 low-priority security issues in trixie low

There are 7 open security issues in trixie.

7 issues left for the package maintainer to handle:
  • CVE-2026-35563: (needs triaging) It was identified that the LDAP client implementation in version 2.1.7 does not verify if the server certificate matches the intended LDAP hostname. While the underlying code validates the certificate chain against a trusted authority, the absence of endpoint identification allows a valid certificate issued for an entirely unrelated host to be improperly accepted. This oversight leaves the connection highly vulnerable to server impersonation and complete connection compromise. The root cause of this vulnerability lies in the incomplete TLS server identity verification within the LDAP client implementation. The attacker requires MITM capability on the network to exploit this vulnerability. This attacker must be able to present a certificate trusted by the client's configured trust store. The hostname verification has been enforced in the new version of the LDAP API
  • CVE-2026-102731: (needs triaging) Memory allocation with excessive size value vulnerability in Apache Directory LDAP API. A malicious peer (or a MITM) can send a small BER-encoded response causing a large memory allocation before any data is received. This can lead to an OutOfMemoryError and denial of service. The client JVM OOMs (OutOfMemoryError bypasses the DecoderException handlers) or pins the large allocation per connection while the attacker stalls. A handful of connections exhausts any heap. The same bytes from an unauthenticated pre-bind client hit any embedding server that did not set MAX_PDU_SIZE_ATTR. This issue affects Apache Directory LDAP API: from 1.2.0 before 1.2.9. Users are recommended to upgrade to version 1.2.9, which fixes the issue.
  • CVE-2026-103552: (needs triaging) Stack Overflow vulnerability in Apache Directory LDAP API. Before binding, a client can send a deeply nested search filter that overflows the stack in the server's decoder. This issue affects Apache Directory LDAP API: from 1.2.0 before 1.2.9. Users are recommended to upgrade to version 1.2.9, which fixes the issue.
  • CVE-2026-103877: (needs triaging) Deserialization of Untrusted Data vulnerability in Apache Directory LDAP API. A rogue/compromised LDAP server (or pre-TLS MITM) can answer a client's loadSchema() subschema search with a schema object that contains a serialized Java class, allowing some potential RCE.  This issue affects Apache Directory LDAP API: from 2.1.0 before 2.1.9. Users are recommended to upgrade to version 2.1.9, which fixes the issue.
  • CVE-2026-103878: (needs triaging) Cleartext transmission of sensitive information vulnerability in Apache Directory LDAP API. A StartTLS extended operation started after a Search request has been sent can lead to receive data in plain text before the TLS Handshake has been completed. This issue affects Apache Directory LDAP API: from 2.1.0 before 2.1.9. Users are recommended to upgrade to version 2.1.9, which fixes the issue.
  • CVE-2026-103880: (needs triaging) Asymmetric Resource Consumption vulnerability in Apache Directory LDAP API. Storing a password using the bcrypt algorithm with a high force like 30 in a LDAP server that supports this algorithm will cause the server CPU to  run for hours checking the credentials. A bounded cost should be enforced to avoid a server DOS. This issue affects Apache Directory LDAP API: from 2.1.0 before 2.1.9. Users are recommended to upgrade to version 2.1.9, which fixes the issue.
  • CVE-2026-103885: (needs triaging) Asymmetric Resource Consumption vulnerability in Apache Directory LDAP API. A LDAP server using the LDAP API (like Apache DS) may consume 100% of a CPU core indefinitely when processing some badly crafted Telephone Numbers. This issue affects Apache Directory LDAP API: from 2.1.0 before 2.1.9. Users are recommended to upgrade to version 2.1.9, which fixes the issue.

You can find information about how to handle these issues in the security team's documentation.

Created: 2026-06-01 Last update: 2026-10-07 11:30
Standards version of the package is outdated. wishlist
The package should be updated to follow the last version of Debian Policy (Standards-Version 4.7.4 instead of 4.7.0).
Created: 2025-02-21 Last update: 2026-03-31 15:01
news
[rss feed]
  • [2024-11-05] apache-directory-api 2.1.2-2 MIGRATED to testing (Debian testing watch)
  • [2024-10-30] Accepted apache-directory-api 2.1.2-2 (source) into unstable (Emmanuel Bourg)
  • [2023-01-01] apache-directory-api 2.1.2-1 MIGRATED to testing (Debian testing watch)
  • [2022-12-27] Accepted apache-directory-api 2.1.2-1 (source) into unstable (Emmanuel Bourg)
  • [2021-01-27] apache-directory-api 1.0.0-2 MIGRATED to testing (Debian testing watch)
  • [2021-01-21] Accepted apache-directory-api 1.0.0-2 (source) into unstable (Emmanuel Bourg)
  • [2018-02-01] apache-directory-api 1.0.0-1 MIGRATED to testing (Debian testing watch)
  • [2018-01-27] Accepted apache-directory-api 1.0.0-1 (source) into unstable (Christopher Hoskin)
  • [2016-08-25] apache-directory-api 1.0.0~M20-5 MIGRATED to testing (Debian testing watch)
  • [2016-08-19] Accepted apache-directory-api 1.0.0~M20-5 (source all) into unstable (Emmanuel Bourg)
  • [2016-07-05] apache-directory-api 1.0.0~M20-4 MIGRATED to testing (Debian testing watch)
  • [2016-06-28] Accepted apache-directory-api 1.0.0~M20-4 (source all) into unstable (Emmanuel Bourg)
  • [2015-07-15] apache-directory-api 1.0.0~M20-3 MIGRATED to testing (Britney)
  • [2015-07-09] Accepted apache-directory-api 1.0.0~M20-3 (source all) into unstable (Emmanuel Bourg)
  • [2015-07-09] Accepted apache-directory-api 1.0.0~M20-2 (source all) into unstable (Emmanuel Bourg)
  • [2015-07-09] Accepted apache-directory-api 1.0.0~M20-1 (source all) into unstable, unstable (Emmanuel Bourg)
bugs [bug history graph]
  • all: 2
  • RC: 0
  • I&N: 2
  • M&W: 0
  • F&P: 0
  • patch: 0
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  • version: 2.1.2-2build1

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