[ubuntu/questing-updates] openssl 3.5.3-1ubuntu3.3 (Accepted)

[Ubuntu Archive Robot]

openssl (3.5.3-1ubuntu3.3) questing-security; urgency=medium

  * SECURITY UPDATE: OpenSSL TLS 1.3 server may choose unexpected key
    agreement group
    - debian/patches/CVE-2026-2673.patch: fix group tuple handling in
      DEFAULT expansion in doc/man3/SSL_CTX_set1_curves.pod,
      ssl/t1_lib.c, test/tls13groupselection_test.c.
    - CVE-2026-2673
  * SECURITY UPDATE: NULL pointer dereference when processing an OCSP
    response
    - debian/patches/CVE-2026-28387.patch: dane_match_cert() should
      X509_free() on ->mcert instead of OPENSSL_free() in
      crypto/x509/x509_vfy.c.
    - CVE-2026-28387
  * SECURITY UPDATE: NULL Pointer Dereference When Processing a Delta CRL
    - debian/patches/CVE-2026-28388-1.patch: fix NULL Dereference When
      Delta CRL Lacks CRL Number Extension in crypto/x509/x509_vfy.c.
    - debian/patches/CVE-2026-28388-2.patch: Added test in test/*.
    - CVE-2026-28388
  * SECURITY UPDATE: Possible NULL dereference when processing CMS
    KeyAgreeRecipientInfo
    - debian/patches/CVE-2026-28389.patch: Fix NULL deref in
      [ec]dh_cms_set_shared_info in crypto/cms/cms_dh.c,
      crypto/cms/cms_ec.c.
    - CVE-2026-28389
  * SECURITY UPDATE: Possible NULL Dereference When Processing CMS
    KeyTransportRecipientInfo
    - debian/patches/CVE-2026-28390.patch: Fix NULL deref in
      rsa_cms_decrypt in crypto/cms/cms_rsa.c.
    - CVE-2026-28390
  * SECURITY UPDATE: Heap buffer overflow in hexadecimal conversion
    - debian/patches/CVE-2026-31789.patch: avoid possible buffer overflow
      in buf2hex conversion in crypto/o_str.c.
    - CVE-2026-31789
  * SECURITY UPDATE: Incorrect failure handling in RSA KEM RSASVE
    encapsulation
    - debian/patches/CVE-2026-31790-1.patch: validate RSA_public_encrypt()
      result in RSASVE in providers/implementations/kem/rsa_kem.c.
    - debian/patches/CVE-2026-31790-2.patch: test RSA_public_encrypt()
      result in RSASVE in test/evp_extra_test.c.
    - CVE-2026-31790
  * Fix ppc64 FTBFS because of incorrect regex match (LP: #2137464)
    - debian/patches/fix_ppc64_regex_match.patch: match last filename for
      output in ecp_nistp*-ppc64.pl.

Date: 2026-04-07 14:31:26.140876+00:00
Changed-By: Marc Deslauriers <marc.deslauriers at canonical.com>
Signed-By: Ubuntu Archive Robot <ubuntu-archive-robot at lists.canonical.com>
https://launchpad.net/ubuntu/+source/openssl/3.5.3-1ubuntu3.3
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