CVE-2019-18348

Current Description

An issue was discovered in urllib2 in Python 2.x through 2.7.17 and urllib in Python 3.x through 3.8.0. CRLF injection is possible if the attacker controls a url parameter, as demonstrated by the first argument to urllib.request.urlopen with (specifically in the host component of a URL) followed by an HTTP header. This is similar to the CVE-2019-9740 query string issue and the CVE-2019-9947 path string issue. (This is not exploitable when glibc has CVE-2016-10739 fixed.)

Basic Data

Published	October 23, 2019
Last Modified	July 15, 2020
Assigner	cve@mitre.org
Data Type	CVE
Data Format	MITRE
Data Version	4.0
Problem Type	CWE-74
CVE Data Version	4.0

Base Metric V2

CVSS 2 - Version	2.0
CVSS 2 - Vector String	AV:N/AC:M/Au:N/C:N/I:P/A:N
CVSS 2 - Access Vector	NETWORK
CVSS 2 - Access Complexity	MEDIUM
CVSS 2 - Authentication	NONE
CVSS 2 - Confidentiality Impact	NONE
CVSS 2 - Availability Impact	NONE
CVSS 2 - Base Score	4.3
Severity	MEDIUM
Exploitability Score	8.6
Impact Score	2.9
Obtain All Privilege	false
Obtain User Privilege	false
Obtain Other Privilege	false

Base Metric V3

No data provided.

Configurations

Vulnerable Software List

Vendor	Product	Versions
Python	Python	*

References