CVE-2019-9740
- State
- Published
- Severity
- 6.5 Medium
- Published
- Mar 13, 2019
- Updated
- Oct 14, 2026
- Reserved
- Mar 12, 2019
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 6.5 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N | CISA-ADP |
Weaknesses
- CWE-93 Improper Neutralization of CRLF Sequences ('CRLF Injection')
Affected Products
| Product | Versions |
|---|---|
n/an/a |
|
References
- 107466vdb-entry
- FEDORA-2019-1ffd6b6064vendor-advisory
- RHSA-2019:1260vendor-advisory
- FEDORA-2019-ec26883852vendor-advisory
- [debian-lts-announce] 20190625 [SECURITY] [DLA 1834-1] python2.7 security updatemailing-list
- [debian-lts-announce] 20190625 [SECURITY] [DLA 1835-1] python3.4 security updatemailing-list
- [debian-lts-announce] 20190625 [SECURITY] [DLA 1835-2] python3.4 regression updatemailing-list
- FEDORA-2019-7723d4774avendor-advisory
- FEDORA-2019-7df59302e0vendor-advisory
- RHSA-2019:2030vendor-advisory
- USN-4127-2vendor-advisory
- openSUSE-SU-2019:2131vendor-advisory
- openSUSE-SU-2019:2133vendor-advisory
- USN-4127-1vendor-advisory
- 20191021 [slackware-security] python (SSA:2019-293-01)mailing-list
- RHSA-2019:3335vendor-advisory
- RHSA-2019:3520vendor-advisory
- RHSA-2019:3725vendor-advisory
- FEDORA-2019-b06ec6159bvendor-advisory
- FEDORA-2019-d202cda4f8vendor-advisory
- FEDORA-2019-57462fa10dvendor-advisory
- GLSA-202003-26vendor-advisory
- [debian-lts-announce] 20200715 [SECURITY] [DLA 2280-1] python3.5 security updatemailing-list
- [debian-lts-announce] 20200822 [SECURITY] [DLA 2337-1] python2.7 security updatemailing-list
- http://packetstormsecurity.com/files/154927/Slackware-Security-Advisory-python-Updates.html
- [oss-security] 20210204 [CVE-2020-15693, CVE-2020-15694] Nim - stdlib Httpclient - Header Crlf Injection & Server Response Validationmailing-list
- https://www.oracle.com/security-alerts/cpujul2022.html
- https://bugs.python.org/issue36276
- https://security.netapp.com/advisory/ntap-20190619-0005/
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
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