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 query string after a ? character) followed by an HTTP header or a Redis command. 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.
Metrics
Affected Vendors & Products
Advisories
| Source | ID | Title |
|---|---|---|
Debian DLA |
DLA-1834-1 | python2.7 security update |
Debian DLA |
DLA-1835-1 | python3.4 security update |
Debian DLA |
DLA-1835-2 | python3.4 regression update |
Debian DLA |
DLA-2280-1 | python3.5 security update |
Debian DLA |
DLA-2337-1 | python2.7 security update |
Debian DLA |
DLA-3610-1 | python-urllib3 security update |
EUVD |
EUVD-2019-19103 | 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 query string after a ? character) followed by an HTTP header or a Redis command. 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. |
Ubuntu USN |
USN-4127-1 | Python vulnerabilities |
Ubuntu USN |
USN-4127-2 | Python vulnerabilities |
Ubuntu USN |
USN-6891-1 | Python vulnerabilities |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Sat, 12 Jul 2025 13:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
epss
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epss
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Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2024-08-04T22:01:54.079Z
Reserved: 2019-03-12T00:00:00
Link: CVE-2019-9740
No data.
Status : Modified
Published: 2019-03-13T03:29:00.193
Modified: 2024-11-21T04:52:12.640
Link: CVE-2019-9740
OpenCVE Enrichment
No data.
Debian DLA
EUVD
Ubuntu USN