CRLF Injection Affecting python3.4 package, versions <3.4.2-1+deb8u3


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.4% (74th percentile)

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  • Snyk IDSNYK-DEBIAN8-PYTHON34-341375
  • published23 Mar 2019
  • disclosed23 Mar 2019

Introduced: 23 Mar 2019

CVE-2019-9947  (opens in a new tab)
CWE-93  (opens in a new tab)

How to fix?

Upgrade Debian:8 python3.4 to version 3.4.2-1+deb8u3 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python3.4 package and not the python3.4 package as distributed by Debian. See How to fix? for Debian:8 relevant fixed versions and status.

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

CVSS Scores

version 3.1