[ubuntu/jammy-security] gnupg2 2.2.27-3ubuntu2.3 (Accepted)

[Marc Deslauriers]

gnupg2 (2.2.27-3ubuntu2.3) jammy-security; urgency=medium

  * SECURITY UPDATE: verification DoS via crafted subkey data
    - debian/patches/CVE-2025-30258-1.patch: lookup key for merging/
      inserting only by primary key in g10/getkey.c, g10/import.c,
      g10/keydb.h.
    - debian/patches/CVE-2025-30258-2.patch: remove a signature check
      function wrapper in g10/mainproc.c, g10/packet.h, g10/sig-check.c.
    - debian/patches/CVE-2025-30258-3.patch: fix a verification DoS due to
      a malicious subkey in the keyring in g10/getkey.c, g10/keydb.h,
      g10/mainproc.c, g10/packet.h, g10/sig-check.c, g10/pkclist.c.
    - debian/patches/CVE-2025-30258-4.patch: fix regression for the recent
      malicious subkey DoS fix in g10/getkey.c, g10/packet.h.
    - debian/patches/CVE-2025-30258-5.patch: fix double free of internal
      data in g10/sig-check.c.
    - CVE-2025-30258

Date: 2025-03-30 14:16:14.275988+00:00
Changed-By: Marc Deslauriers <marc.deslauriers at canonical.com>
https://launchpad.net/ubuntu/+source/gnupg2/2.2.27-3ubuntu2.3
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