Synopsis

Moderate: python-urllib3 security update

Type/Severity

Security Advisory: Moderate

Topic

An update for python-urllib3 is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

The python-urllib3 package provides the Python HTTP module with connection pooling and file POST abilities.

Security Fix(es):

• python-urllib3: Cross-host redirect does not remove Authorization header allow for credential exposure (CVE-2018-20060)
• python-urllib3: CRLF injection due to not encoding the '\r\n' sequence leading to possible attack on internal service (CVE-2019-11236)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.7 Release Notes linked from the References section.

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Affected Products

• Red Hat Enterprise Linux Server 7 x86_64
• Red Hat Enterprise Linux Workstation 7 x86_64
• Red Hat Enterprise Linux Desktop 7 x86_64
• Red Hat Enterprise Linux for IBM z Systems 7 s390x
• Red Hat Enterprise Linux for Power, big endian 7 ppc64
• Red Hat Enterprise Linux for Scientific Computing 7 x86_64
• Red Hat Enterprise Linux for Power, little endian 7 ppc64le

Fixes

• BZ - 1649153 - CVE-2018-20060 python-urllib3: Cross-host redirect does not remove Authorization header allow for credential exposure
• BZ - 1700824 - CVE-2019-11236 python-urllib3: CRLF injection due to not encoding the '\r\n' sequence leading to possible attack on internal service

CVEs

• CVE-2018-20060
• CVE-2019-11236

References