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UBUNTU-CVE-2019-9947

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UBUNTU-CVE-2019-9947

Published: 23 Mar 2019Last Modified: 22 Apr 2026

Upstream:

Aliases:

Summary:

Details: 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.

References: https://ubuntu.com/security/CVE-2019-9947, https://python-security.readthedocs.io/vuln/http-header-injection2.html, https://ubuntu.com/security/notices/USN-4127-1, https://ubuntu.com/security/notices/USN-4127-2, https://www.cve.org/CVERecord?id=CVE-2019-9947, https://ubuntu.com/security/notices/USN-6891-1

Affected packages

Package

Name: python2.7

Purl: pkg:deb/ubuntu/[email protected]+esm2?arch=source&distro=trusty/esm

Affected ranges

Type: ECOSYSTEM

Events:

Introduced- 0

Fixed -2.7.6-8ubuntu0.6+esm2

Affected versions

2.7.5-8ubuntu3

2.7.5-8ubuntu4

2.7.6-2

2.7.6-2ubuntu1

2.7.6-3

2.7.6-3ubuntu1

2.7.6-4

2.7.6-4ubuntu1

2.7.6-5

2.7.6-7

2.7.6-8

2.7.6-8ubuntu0.2

2.7.6-8ubuntu0.3

2.7.6-8ubuntu0.4

2.7.6-8ubuntu0.5

Common Vulnerability Scoring System

Attack Vector

Network

Adjacent

Local

Physical

Privileges Required

None

Low

High

User Interaction

None

Required

Scope

Unchanged

Changed

Confidentiality

None

Low

High

Integrity

None

Low

High

Availability

None

Low

High