CVE-2019-9947

An issue was discovered in urllib2 in Python 2.x through 2.7.16 and urllib in Python 3.x through 3.7.3. CRLF injection is possible if the attacker controls a url parameter, as demonstrated by the first argument to urllib.request.urlopen with \r\n (specifically in the path component of a URL that lacks a ? character) followed by an HTTP header or a Redis command. This is similar to the CVE-2019-9740 query string issue. This is fixed in: v2.7.17, v2.7.17rc1, v2.7.18, v2.7.18rc1; v3.5.10, v3.5.10rc1, 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; v3.7.4, 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.

CVSS v3.0 6.1 MEDIUM
CVSS v2.0 4.3 MEDIUM

6.1^/10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

4.3^/10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:N/AC:M/Au:N/C:N/I:P/A:N

Exploitability : 8.6 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

References

Link	Resource
https://bugs.python.org/issue35906	Exploit Issue Tracking Patch Vendor Advisory
https://security.netapp.com/advisory/ntap-20190404-0004/	Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JXASHCDD4PQFKTMKQN4YOP5ZH366ABN4/	Mailing List Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:1260	Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JMWSKTNOHSUOT3L25QFJAVCFYZX46FYK/	Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/06/msg00023.html	Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/06/msg00022.html	Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/06/msg00026.html	Mailing List Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:2030	Third Party Advisory
https://usn.ubuntu.com/4127-2/	Third Party Advisory
https://usn.ubuntu.com/4127-1/	Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00062.html	Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00063.html	Mailing List Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:3335	Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:3520	Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:3725	Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html	Mailing List Third Party Advisory
https://security.gentoo.org/glsa/202003-26	Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/07/msg00011.html	Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/08/msg00034.html	Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/02/04/2	Mailing List Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:python:python::::::::
	cpe:2.3:a:python:python::::::::
	cpe:2.3:a:python:python::::::::
	cpe:2.3:a:python:python::::::::

Information

Published : 2019-03-23 11:29

Updated : 2022-08-16 06:00

NVD link : CVE-2019-9947

Mitre link : CVE-2019-9947

JSON object : View

CWE

CWE-93

Improper Neutralization of CRLF Sequences ('CRLF Injection')

Products Affected

python

python

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6.1 /10

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

4.3 /10

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

JSON object

Attach tags to CVE-2019-9947

6.1^/10

4.3^/10

Attach tags to `CVE-2019-9947`