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Package "openvpn"

Name: openvpn

Description:

virtual private network daemon
Latest version: 2.5.11-0ubuntu0.22.04.5
Release: jammy (22.04)
Level: updates
Repository: main
Homepage: https://openvpn.net/

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Other versions of "openvpn" in Jammy

Repository Area Version
base main 2.5.5-1ubuntu3
security main 2.5.11-0ubuntu0.22.04.5
backports main 2.6.12-0ubuntu0.24.04.3~bpo22.04.1

Changelog

Version: 2.5.11-0ubuntu0.22.04.5 2026-09-30 17:07:17 UTC

openvpn (2.5.11-0ubuntu0.22.04.5) jammy-security; urgency=medium

  * SECURITY UPDATE: use-after-free in TLS Session Handling
    - debian/patches/CVE-2026-84471.patch: Move check_session_buf_not_used
      method into the method that free the buffer in src/openvpn/ssl.c.
    - CVE-2026-84471
  * SECURITY UPDATE: DoS via crafted inputs
    - debian/patches/CVE-2026-84732-pre1.patch: reliable: retransmit if 3
      follow-up ACKs are received in src/openvpn/reliable.c,
      src/openvpn/reliable.h.
    - debian/patches/CVE-2026-84732-1.patch: Avoid unbounded reliable TLS
      timeout in src/openvpn/options.c, src/openvpn/reliable.c,
      src/openvpn/reliable.h.
    - debian/patches/CVE-2026-84732-2.patch: Ignore acks for packets that cannot
      be outstanding in src/openvpn/reliable.c, src/openvpn/reliable.h,
      tests/unit_tests/openvpn/test_packet_id.c.
    - CVE-2026-84732

 -- Marc Deslauriers Wed, 23 Sep 2026 13:56:44 -0400
Source diff to previous version
CVE-2026-84732 Retransmissions of ACK packet ID in OpenVPN through 2.6.22 and 2.7.6 allow remote unauthenticated attackers to cause a denial of service via crafted

Version: 2.5.11-0ubuntu0.22.04.4 2026-07-14 20:09:11 UTC

  openvpn (2.5.11-0ubuntu0.22.04.4) jammy-security; urgency=medium

  * SECURITY UPDATE: metadata buffer leak
    - debian/patches/CVE-2026-12932.patch: Clean up metadata handling in
      tls_crypt_v2_extract_client_key in src/openvpn/ssl.h,
      src/openvpn/ssl_common.h, src/openvpn/ssl.c, src/openvpn/tls_crypt.c,
      tests/unit_tests/openvpn/Makefile.am,
      tests/unit_tests/openvpn/test_tls_crypt.c.
    - CVE-2026-12932
  * SECURITY UPDATE: ack_write_buf use after free
    - debian/patches/CVE-2026-12996.patch: Fix ack_write_buf use after free in
      src/openvpn/ssl.c.
    - CVE-2026-12996
  * SECURITY UPDATE: DoS via memory leak with valid tls-crypt-v2 client key
    - debian/patches/CVE-2026-13698.patch: Ensure tls-crypt keys are not setup
      twice in src/openvpn/ssl.h, src/openvpn/tls_crypt.c.
    - CVE-2026-13698

 -- Marc Deslauriers <email address hidden> Wed, 08 Jul 2026 07:26:58 -0400
Source diff to previous version
CVE-2026-13698 A memory leak in OpenVPN version 2.5.0 through 2.5.11, 2.6.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows remote attackers with a valid tls-cry

Version: 2.5.11-0ubuntu0.22.04.3 2026-05-20 16:07:33 UTC

  openvpn (2.5.11-0ubuntu0.22.04.3) jammy-security; urgency=medium

  * SECURITY UPDATE: server ASSERT() via malformed packet
    - debian/patches/CVE-2026-35058.patch: avoid interpreting opcode as
      part of WKc in src/openvpn/tls_crypt.c,
      tests/unit_tests/openvpn/test_tls_crypt.c.
    - CVE-2026-35058
  * SECURITY UPDATE: race condition in TLS handshake
    - debian/patches/CVE-2026-40215-pre1.patch: double check that we do not
      use a freed buffer when freeing a session in src/openvpn/ssl.c.
    - debian/patches/CVE-2026-40215-pre2.patch: do not check key_state
      buffers that are in S_UNDEF state in src/openvpn/ssl.c.
    - debian/patches/CVE-2026-40215-pre3.patch: fix
      check_session_buf_not_used using wrong index in src/openvpn/ssl.c.
    - debian/patches/CVE-2026-40215.patch: ensure that buffer of freed
      session are not used in src/openvpn/ssl.c.
    - CVE-2026-40215
  * Updated expired test certs
    - debian/patches/renew-test-certs.patch
    - debian/source/include-binaries: add sample/sample-keys/client.p12.

 -- Marc Deslauriers <email address hidden> Thu, 23 Apr 2026 09:28:58 -0400
Source diff to previous version

Version: 2.5.11-0ubuntu0.22.04.1 2024-10-10 21:07:17 UTC

  openvpn (2.5.11-0ubuntu0.22.04.1) jammy; urgency=medium

  * New upstream release 2.5.11 (LP: #2073318):
    - CVE Fixes:
      + CVE-2024-5594, CVE-2024-27459, CVE-2024-24974, CVE-2024-27903
    - Updates:
      + Allow trailing \r and \n in control channel message
      + See https://community.openvpn.net/openvpn/wiki/ChangesInOpenvpn25 for
        additional bug fixes and information
  * Remove patches fixed upstream:
    - d/p/CVE-2024-5594.patch
    [Fixed in 2.5.11]

 -- Lena Voytek <email address hidden> Tue, 17 Sep 2024 13:25:49 -0700
Source diff to previous version
2073318 Backport of openvpn for jammy and noble
CVE-2024-27459 The interactive service in OpenVPN 2.6.9 and earlier allows an attacker to send data causing a stack overflow which can be used to execute arbitrary
CVE-2024-24974 The interactive service in OpenVPN 2.6.9 and earlier allows the OpenVPN service pipe to be accessed remotely, which allows a remote attacker to inter
CVE-2024-27903 OpenVPN plug-ins on Windows with OpenVPN 2.6.9 and earlier could be loaded from any directory, which allows an attacker to load an arbitrary plug-in

Version: 2.5.9-0ubuntu0.22.04.3 2024-07-02 17:07:08 UTC

  openvpn (2.5.9-0ubuntu0.22.04.3) jammy-security; urgency=medium

  * SECURITY UPDATE: malicious peer can DoS or send garbage to logs
    - debian/patches/CVE-2024-5594.patch: properly handle null bytes and
      invalid characters in control messages in src/openvpn/buffer.*,
      src/openvpn/forward.c, tests/unit_tests/openvpn/test_buffer.c.
    - CVE-2024-5594

 -- Marc Deslauriers <email address hidden> Thu, 27 Jun 2024 14:49:38 -0400


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