CVE-2016-5636

9.8 CRITICAL
Published: September 02, 2016 Modified: May 06, 2026
View on NVD

Description

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.

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

Login to generate AI explanation

CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html
Source: cve@mitre.org
http://rhn.redhat.com/errata/RHSA-2016-2586.html
Source: cve@mitre.org
http://www.openwall.com/lists/oss-security/2016/06/15/15
Source: cve@mitre.org
Mailing List
http://www.openwall.com/lists/oss-security/2016/06/16/1
Source: cve@mitre.org
Mailing List
http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html
Source: cve@mitre.org
http://www.securityfocus.com/bid/91247
Source: cve@mitre.org
http://www.securitytracker.com/id/1038138
Source: cve@mitre.org
http://www.splunk.com/view/SP-CAAAPSV
Source: cve@mitre.org
http://www.splunk.com/view/SP-CAAAPUE
Source: cve@mitre.org
https://bugs.python.org/issue26171
Source: cve@mitre.org
Issue Tracking Patch
https://docs.python.org/3.4/whatsnew/changelog.html#python-3-4-5
Source: cve@mitre.org
Release Notes
https://docs.python.org/3.5/whatsnew/changelog.html#python-3-5-2
Source: cve@mitre.org
Release Notes
https://hg.python.org/cpython/raw-file/v2.7.12/Misc/NEWS
Source: cve@mitre.org
Release Notes
https://lists.debian.org/debian-lts-announce/2019/02/msg00011.html
Source: cve@mitre.org
https://security.gentoo.org/glsa/201701-18
Source: cve@mitre.org
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html
Source: af854a3a-2127-422b-91ae-364da2661108
http://rhn.redhat.com/errata/RHSA-2016-2586.html
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.openwall.com/lists/oss-security/2016/06/15/15
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List
http://www.openwall.com/lists/oss-security/2016/06/16/1
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List
http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.securityfocus.com/bid/91247
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.securitytracker.com/id/1038138
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.splunk.com/view/SP-CAAAPSV
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.splunk.com/view/SP-CAAAPUE
Source: af854a3a-2127-422b-91ae-364da2661108
https://bugs.python.org/issue26171
Source: af854a3a-2127-422b-91ae-364da2661108
Issue Tracking Patch
https://docs.python.org/3.4/whatsnew/changelog.html#python-3-4-5
Source: af854a3a-2127-422b-91ae-364da2661108
Release Notes
https://docs.python.org/3.5/whatsnew/changelog.html#python-3-5-2
Source: af854a3a-2127-422b-91ae-364da2661108
Release Notes
https://hg.python.org/cpython/raw-file/v2.7.12/Misc/NEWS
Source: af854a3a-2127-422b-91ae-364da2661108
Release Notes
https://lists.debian.org/debian-lts-announce/2019/02/msg00011.html
Source: af854a3a-2127-422b-91ae-364da2661108
https://security.gentoo.org/glsa/201701-18
Source: af854a3a-2127-422b-91ae-364da2661108

30 reference(s) from NVD

Quick Stats

CVSS v3 Score
9.8 / 10.0
EPSS (Exploit Probability)
45.1%
98th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-190

Affected Vendors

python

Related CVEs

CVE-2026-8086 5.3
CVE-2026-8084 3.3
CVE-2026-8083 7.3
CVE-2026-44742 7.2
CVE-2026-44244 7.8