[ubuntu/bionic-security] zsh 5.4.2-3ubuntu3.2 (Accepted)

[Rodrigo Figueiredo Zaiden]

zsh (5.4.2-3ubuntu3.2) bionic-security; urgency=medium

  * SECURITY UPDATE: Regain dropped privileges
    - debian/patches/CVE-2019-20044-pre.patch: change the order of the calls to
      setgid (this should go first) and setuid in Src/options.c.
    - debian/patches/CVE-2019-20044-1.patch: add extra checks to drop privileges
      securely in Src/options.c.
    - debian/patches/CVE-2019-20044-2.patch: add Src/openssh_bsd_setres_id.c
      and its object file to Src/zsh.mdd, fix some of the checks from the
      previous patch in Src/options.c, update compatibility wrappers in
      Src/zsh_system.h, update the uid/gid methods in AC_CHECK_FUNCS in
      configure.ac and add a test in Test/E01options.ztst.
    - debian/patches/CVE-2019-20044-3.patch: improve Src/options.c changes from
      above two patches.
    - debian/patches/CVE-2019-20044-4.patch: clean up white spaces in
      Src/options.c.
    - debian/patches/CVE-2019-20044-5.patch: add privileged tests to
      Test/P01privileged.ztst, remove the notes on privileged test in
      Test/E01options.ztst and add the prilived tests to the Test/README.
    - CVE-2019-20044
  * SECURITY UPDATE: Arbitrary code execution
    - debian/patches/CVE-2021-45444.patch: save PROMPTSUBST option before
      the call to promptexpand() in b/Src/prompt.c and restore after it is
      executed.
    - CVE-2021-45444

Date: 2022-03-11 21:27:11.090667+00:00
Changed-By: Rodrigo Figueiredo Zaiden <rodrigo.zaiden at canonical.com>
https://launchpad.net/ubuntu/+source/zsh/5.4.2-3ubuntu3.2
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