Arbitrary Code Injection Affecting python package, versions [2.0,2.7.18)[3.0,3.5.10)[3.6.0,3.6.11)[3.7.0,3.7.8)[3.8.0,3.8.3)


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.53% (78th percentile)

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  • Snyk IDSNYK-UNMANAGED-PYTHON-2317643
  • published14 Dec 2021
  • disclosed23 Oct 2019
  • creditUnknown

Introduced: 23 Oct 2019

CVE-2019-18348  (opens in a new tab)
CWE-74  (opens in a new tab)

How to fix?

Upgrade python to version 2.7.18, 3.5.10, 3.6.11, 3.7.8, 3.8.3 or higher.

Overview

Affected versions of this package are vulnerable to Arbitrary Code Injection. 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 \r\n (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.). This is fixed in: v2.7.18, v2.7.18rc1; v3.5.10, v3.5.10rc1; v3.6.11, v3.6.11rc1, v3.6.12; v3.7.8, v3.7.8rc1, v3.7.9; v3.8.3, v3.8.3rc1, v3.8.4, v3.8.4rc1, v3.8.5, v3.8.6, v3.8.6rc1.

CVSS Scores

version 3.1