ESB-2020.4112 – [Debian] python3.5: Multiple vulnerabilities

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2020.4112
                         python3.5 security update
                             19 November 2020

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           python3.5
Publisher:         Debian
Operating System:  Debian GNU/Linux
Impact/Access:     Denial of Service              -- Remote/Unauthenticated
                   Provide Misleading Information -- Remote/Unauthenticated
                   Access Confidential Data       -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2020-26116 CVE-2019-20907 

Reference:         ESB-2020.4006
                   ESB-2020.3995
                   ESB-2020.3785
                   ESB-2020.3614
                   ESB-2020.2871

Original Bulletin: 
   https://lists.debian.org/debian-lts-announce/2020/11/msg00032.html

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Debian LTS Advisory DLA-2456-1                debian-lts@lists.debian.org
https://www.debian.org/lts/security/                  Roberto C. S=E1nchez
November 18, 2020                             https://wiki.debian.org/LTS
- -------------------------------------------------------------------------

Package        : python3.5
Version        : 3.5.3-1+deb9u3
CVE ID         : CVE-2019-20907 CVE-2020-26116
Debian Bug     :=20

Multiple security issues were discovered in Python.

CVE-2019-20907

    In Lib/tarfile.py, an attacker is able to craft a TAR
    archive leading to an infinite loop when opened by tarfile.open,
    because _proc_pax lacks header validation

CVE-2020-26116

    http.client allows CRLF injection if the attacker controls
    the HTTP request method

For Debian 9 stretch, these problems have been fixed in version
3.5.3-1+deb9u3.

We recommend that you upgrade your python3.5 packages.

For the detailed security status of python3.5 please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/python3.5

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS

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NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members.  As
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NOTE: This is only the original release of the security bulletin.  It may
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===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
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                On call after hours for member emergencies only.
===========================================================================
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