Integer overflow in the get_data function in zipimport.c in CPython (aka Python) before 2.7.12, 3.x before 3.4.5, and 3.5.x before 3.5.2 allows remote attackers to have unspecified impact via a negative data size value, which triggers a heap-based buffer overflow.
http://rhn.redhat.com/errata/RHSA-2016-2586.html
http://www.openwall.com/lists/oss-security/2016/06/15/15
http://www.openwall.com/lists/oss-security/2016/06/16/1
http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html
http://www.securityfocus.com/bid/91247
http://www.securitytracker.com/id/1038138
http://www.splunk.com/view/SP-CAAAPSV
http://www.splunk.com/view/SP-CAAAPUE
https://bugs.python.org/issue26171
https://docs.python.org/3.4/whatsnew/changelog.html#python-3-4-5
https://docs.python.org/3.5/whatsnew/changelog.html#python-3-5-2
https://hg.python.org/cpython/raw-file/v2.7.12/Misc/NEWS
https://lists.debian.org/debian-lts-announce/2019/02/msg00011.html
Source: MITRE
Published: 2016-09-02
Updated: 2019-02-09
Type: CWE-190
Base Score: 10
Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C
Impact Score: 10
Exploitability Score: 10
Severity: HIGH
Base Score: 9.8
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Impact Score: 5.9
Exploitability Score: 3.9
Severity: CRITICAL