[ubuntu/resolute-security] openvpn 2.7.0-1ubuntu1.2 (Accepted)

[Marc Deslauriers]

openvpn (2.7.0-1ubuntu1.2) resolute-security; urgency=medium

  * SECURITY UPDATE: buffer overrun via NTLMv2 proxy responses
    - debian/patches/CVE-2026-11771.patch: Fix 1-byte buffer overrun on NTLMv2
      proxy responses. in src/openvpn/ntlm.c.
    - CVE-2026-11771
  * 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_pkt.c, src/openvpn/tls_crypt.c,
      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: tls_wrap_reneg use after free
    - debian/patches/CVE-2026-13117.patch: Fix tls_wrap_reneg use after free in
      src/openvpn/ssl.c.
    - CVE-2026-13117
  * SECURITY UPDATE: DoS via malformed authentication token
    - debian/patches/CVE-2026-13122.patch: Ensure we only get the session from
      valid tokens for external-auth in doc/man-sections/server-options.rst,
      src/openvpn/auth_token.c, src/openvpn/auth_token.h,
      src/openvpn/ssl_verify.c, tests/unit_tests/openvpn/test_auth_token.c.
    - CVE-2026-13122
  * 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.c, src/openvpn/ssl.h, src/openvpn/ssl_pkt.c,
      src/openvpn/ssl_pkt.h, src/openvpn/tls_crypt.c, src/openvpn/tls_crypt.h,
      tests/unit_tests/openvpn/test_tls_crypt.c.
    - CVE-2026-13698

Date: 2026-07-08 18:43:12.535904+00:00
Changed-By: Marc Deslauriers <marc.deslauriers at canonical.com>
https://launchpad.net/ubuntu/+source/openvpn/2.7.0-1ubuntu1.2
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