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CVE-2019-9636

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Date: March 8, 2019

Python 2.7.x through 2.7.16 and 3.x through 3.7.2 is affected by: Improper Handling of Unicode Encoding (with an incorrect netloc) during NFKC normalization. The impact is: Information disclosure (credentials, cookies, etc. that are cached against a given hostname). The components are: urllib.parse.urlsplit, urllib.parse.urlparse. The attack vector is: A specially crafted URL could be incorrectly parsed to locate cookies or authentication data and send that information to a different host than when parsed correctly. This is fixed in: v2.7.17, v2.7.17rc1, v2.7.18, v2.7.18rc1; v3.5.10, v3.5.10rc1, v3.5.7, v3.5.8, v3.5.8rc1, v3.5.8rc2, v3.5.9; v3.6.10, v3.6.10rc1, v3.6.11, v3.6.11rc1, v3.6.12, v3.6.9, v3.6.9rc1; v3.7.3, v3.7.3rc1, v3.7.4, v3.7.4rc1, v3.7.4rc2, v3.7.5, v3.7.5rc1, v3.7.6, v3.7.6rc1, v3.7.7, v3.7.7rc1, v3.7.8, v3.7.8rc1, v3.7.9.

Language: Python

Severity Score

9.8

Related Resources (58)

Url: http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00097.html

Url: https://access.redhat.com/errata/RHBA-2019:0763

Url: https://access.redhat.com/errata/RHSA-2019:2980

Url: https://bugs.python.org/issue36216

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JCPGLTTOBB3QEARDX4JOYURP6ELNNA2V/

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TR6GCO3WTV4D5L23WTCBF275VE6BVNI3/

Url: http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00050.html

Url: https://lists.debian.org/debian-lts-announce/2019/06/msg00022.html

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KRYFIMISZ47NTAU3XWZUOFB7CYL62KES/

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ICBEGRHIPHWPG2VGYS6R4EVKVUUF4AQW/

Url: https://usn.ubuntu.com/4127-1/

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/46PVWY5LFP4BRPG3BVQ5QEEFYBVEXHCK/

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/E2HP37NUVLQSBW3J735A2DQDOZ4ZGBLY/

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HQEQLXLOCR3SNM3AA5RRYJFQ5AZBYJ4L/

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IFAXBEY2TGOBDRKTR556JBXBVFSAKD6I/

Url: https://access.redhat.com/errata/RHSA-2019:0710

Url: https://access.redhat.com/errata/RHSA-2019:0997

Url: https://python-security.readthedocs.io/vuln/urlsplit-nfkc-normalization.html

Url: https://lists.debian.org/debian-lts-announce/2019/06/msg00023.html

Url: https://access.redhat.com/errata/RHBA-2019:0764

Url: https://nvd.nist.gov/vuln/detail/CVE-2019-9636

Url: https://access.redhat.com/errata/RHSA-2019:1467

Url: https://access.redhat.com/security/cve/CVE-2019-9636

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4X3HW5JRZ7GCPSR7UHJOLD7AWLTQCDVR/

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AEZ5IQT7OF7Q2NCGIVABOWYGKO7YU3NJ/

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2ORNTF62QPLMJXIQ7KTZQ2776LMIXEKL/

Url: http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00024.html

Url: https://access.redhat.com/errata/RHSA-2019:0806

Url: https://github.com/python/cpython/pull/12201

Url: https://security.gentoo.org/glsa/202003-26

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JMWSKTNOHSUOT3L25QFJAVCFYZX46FYK/

Url: https://access.redhat.com/errata/RHSA-2019:0765

Url: https://www.oracle.com/security-alerts/cpujan2020.html

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/M34WOYCDKTDE5KLUACE2YIEH7D37KHRX/

Url: http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00042.html

Url: https://access.redhat.com/errata/RHSA-2019:0981

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L25RTMKCF62DLC2XVSNXGX7C7HXISLVM/

Url: https://security-tracker.debian.org/tracker/CVE-2019-9636

Url: https://access.redhat.com/errata/RHSA-2019:3170

Url: https://security.alpinelinux.org/vuln/CVE-2019-9636

Url: http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JXASHCDD4PQFKTMKQN4YOP5ZH366ABN4/

Url: https://people.canonical.com/~ubuntu-security/cve/CVE-2019-9636

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/44TS66GJMO5H3RLMVZEBGEFTB6O2LJJU/

Url: https://lists.debian.org/debian-lts-announce/2020/07/msg00011.html

Url: http://www.securityfocus.com/bid/107400

Url: https://security.netapp.com/advisory/ntap-20190517-0001/

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ER6LONC2B2WYIO56GBQUDU6QTWZDPUNQ/

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/D3LXPABKVLFYUHRYJPM3CSS5MS6FXKS7/

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CFBAAGM27H73OLYBUA2IAZFSUN6KGLME/

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JSKPGPZQNTAULHW4UH63KGOOUIDE4RRB/

Url: https://usn.ubuntu.com/4127-2/

Url: https://lists.debian.org/debian-lts-announce/2020/08/msg00034.html

Url: https://access.redhat.com/errata/RHBA-2019:0959

Url: https://www.oracle.com/security-alerts/cpujul2022.html

Url: http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00092.html

Url: https://access.redhat.com/errata/RHSA-2019:0902

Url: https://www.mend.io/vulnerability-database/CVE-2019-9636

Severity Score

9.8

Weakness Type (CWE)

Credentials Management

CWE-255

Insufficient Information

NVD-CWE-noinfo

Top Fix

Upgrade Version

Upgrade to version 3.7.3

CVSS v3.1

Base Score:	9.8
Attack Vector (AV):	NETWORK
Attack Complexity (AC):	LOW
Privileges Required (PR):	NONE
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	HIGH
Integrity (I):	HIGH
Availability (A):	HIGH

CVSS v2

Base Score:	5.0
Access Vector (AV):	NETWORK
Access Complexity (AC):	LOW
Authentication (AU):	NONE
Confidentiality (C):	PARTIAL
Integrity (I):	NONE
Availability (A):	NONE
Additional information:

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