Vulnerability CVE-2019-9636
Published: 2019-03-08   Modified: 2019-03-09

Description:
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.

Type:

CWE-255

 (Credentials Management)

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:N/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
None
None
Affected software
Redhat -> Enterprise linux desktop 
Redhat -> Enterprise linux server 
Redhat -> Enterprise linux server aus 
Redhat -> Enterprise linux server eus 
Redhat -> Enterprise linux server tus 
Redhat -> Enterprise linux workstation 
Redhat -> Enterprise linux 
Python -> Python 
Opensuse -> LEAP 
Fedoraproject -> Fedora 

 References:
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00092.html
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00097.html
http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00024.html
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00050.html
http://www.securityfocus.com/bid/107400
https://access.redhat.com/errata/RHBA-2019:0959
https://access.redhat.com/errata/RHSA-2019:0710
https://access.redhat.com/errata/RHSA-2019:0765
https://access.redhat.com/errata/RHSA-2019:0806
https://access.redhat.com/errata/RHSA-2019:0902
https://access.redhat.com/errata/RHSA-2019:0981
https://access.redhat.com/errata/RHSA-2019:0997
https://access.redhat.com/errata/RHSA-2019:1467
https://bugs.python.org/issue36216
https://github.com/python/cpython/pull/12201
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/46PVWY5LFP4BRPG3BVQ5QEEFYBVEXHCK/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AEZ5IQT7OF7Q2NCGIVABOWYGKO7YU3NJ/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CFBAAGM27H73OLYBUA2IAZFSUN6KGLME/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/D3LXPABKVLFYUHRYJPM3CSS5MS6FXKS7/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ICBEGRHIPHWPG2VGYS6R4EVKVUUF4AQW/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IFAXBEY2TGOBDRKTR556JBXBVFSAKD6I/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JMWSKTNOHSUOT3L25QFJAVCFYZX46FYK/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JSKPGPZQNTAULHW4UH63KGOOUIDE4RRB/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JXASHCDD4PQFKTMKQN4YOP5ZH366ABN4/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L25RTMKCF62DLC2XVSNXGX7C7HXISLVM/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TR6GCO3WTV4D5L23WTCBF275VE6BVNI3/
https://python-security.readthedocs.io/vuln/urlsplit-nfkc-normalization.html
https://security.netapp.com/advisory/ntap-20190517-0001/
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