[ubuntu/bionic-security] gnutls28 3.5.18-1ubuntu1.6 (Accepted)

[Marc Deslauriers]

gnutls28 (3.5.18-1ubuntu1.6) bionic-security; urgency=medium

  * SECURITY UPDATE: Null pointer dereference in MD_UPDATE
    - debian/patches/CVE-2021-4209.patch: avoid calling _update with
      zero-length input in lib/nettle/mac.c.
    - CVE-2021-4209
  * SECURITY UPDATE: Double free in verification of pkcs7 signatures
    - debian/patches/CVE-2022-2509.patch: fix double free during
      gnutls_pkcs7_verify in lib/x509/pkcs7.c,
      tests/pkcs7-verify-double-free.c, tests/Makefile.am.
    - CVE-2022-2509

gnutls28 (3.5.18-1ubuntu1.5) bionic; urgency=medium

  * Backport patches from Upstream/Debian to check validity against system
    certs. This is to allow correctly validating default letsencrypt
    chains that now also include a redundant expired certficate. LP:
    #1928648

gnutls28 (3.5.18-1ubuntu1.4) bionic; urgency=medium

  * d/p/50_Update-session_ticket.c-to-add-support-for-zero-leng.patch:
    - add support for zero length  session tickets returned from the server,
      thanks Rod for the backport and testing! (lp: #1876286)

Date: 2022-08-02 15:02:09.063294+00:00
Changed-By: Marc Deslauriers <marc.deslauriers at canonical.com>
https://launchpad.net/ubuntu/+source/gnutls28/3.5.18-1ubuntu1.6
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