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A python3 security update has been released for openSUSE Leap 15.3.



openSUSE-SU-2021:4104-1: moderate: Security update for python3


openSUSE Security Update: Security update for python3
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Announcement ID: openSUSE-SU-2021:4104-1
Rating: moderate
References: #1180125 #1183374 #1183858 #1185588 #1187668
#1189241 #1189287
Cross-References: CVE-2021-3426 CVE-2021-3733 CVE-2021-3737

CVSS scores:
CVE-2021-3426 (NVD) : 5.7 CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CVE-2021-3426 (SUSE): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CVE-2021-3733 (SUSE): 4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CVE-2021-3737 (SUSE): 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected Products:
openSUSE Leap 15.3
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An update that solves three vulnerabilities and has four
fixes is now available.

Description:

This update for python3 fixes the following issues:

- CVE-2021-3426: Fixed information disclosure via pydoc (bsc#1183374).
- CVE-2021-3733: Fixed infinitely reading potential HTTP headers after a
100 Continue status response from the server (bsc#1189241).
- CVE-2021-3737: Fixed ReDoS in urllib.request (bsc#1189287).

- We do not require python-rpm-macros package (bsc#1180125).
- Use versioned python-Sphinx to avoid dependency on other version of
Python (bsc#1183858).
- Stop providing "python" symbol, which means python2 currently
(bsc#1185588).
- Modify Lib/ensurepip/__init__.py to contain the same version numbers as
are in reality the ones in the bundled wheels (bsc#1187668).

Patch Instructions:

To install this openSUSE Security Update use the SUSE recommended installation methods
like YaST online_update or "zypper patch".

Alternatively you can run the command listed for your product:

- openSUSE Leap 15.3:

zypper in -t patch openSUSE-SLE-15.3-2021-4104=1


Package List:

- openSUSE Leap 15.3 (aarch64 ppc64le s390x x86_64):

libpython3_6m1_0-3.6.15-10.9.1
libpython3_6m1_0-debuginfo-3.6.15-10.9.1
python3-3.6.15-10.9.1
python3-base-3.6.15-10.9.1
python3-base-debuginfo-3.6.15-10.9.1
python3-core-debugsource-3.6.15-10.9.1
python3-curses-3.6.15-10.9.1
python3-curses-debuginfo-3.6.15-10.9.1
python3-dbm-3.6.15-10.9.1
python3-dbm-debuginfo-3.6.15-10.9.1
python3-debuginfo-3.6.15-10.9.1
python3-debugsource-3.6.15-10.9.1
python3-devel-3.6.15-10.9.1
python3-devel-debuginfo-3.6.15-10.9.1
python3-doc-3.6.15-10.9.1
python3-doc-devhelp-3.6.15-10.9.1
python3-idle-3.6.15-10.9.1
python3-testsuite-3.6.15-10.9.1
python3-testsuite-debuginfo-3.6.15-10.9.1
python3-tk-3.6.15-10.9.1
python3-tk-debuginfo-3.6.15-10.9.1
python3-tools-3.6.15-10.9.1

- openSUSE Leap 15.3 (x86_64):

libpython3_6m1_0-32bit-3.6.15-10.9.1
libpython3_6m1_0-32bit-debuginfo-3.6.15-10.9.1

References:

  https://www.suse.com/security/cve/CVE-2021-3426.html
  https://www.suse.com/security/cve/CVE-2021-3733.html
  https://www.suse.com/security/cve/CVE-2021-3737.html
  https://bugzilla.suse.com/1180125
  https://bugzilla.suse.com/1183374
  https://bugzilla.suse.com/1183858
  https://bugzilla.suse.com/1185588
  https://bugzilla.suse.com/1187668
  https://bugzilla.suse.com/1189241
  https://bugzilla.suse.com/1189287