CVE-2019-18348
- State
- Published
- Severity
- 5.4 Medium
- Published
- Oct 23, 2019
- Updated
- Oct 14, 2026
- Reserved
- Oct 23, 2019
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 5.4 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N | CISA-ADP |
Weaknesses
- CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
Affected Products
| Product | Versions |
|---|---|
n/an/a |
|
References
- FEDORA-2019-b06ec6159bvendor-advisory
- FEDORA-2019-d202cda4f8vendor-advisory
- FEDORA-2019-57462fa10dvendor-advisory
- USN-4333-1vendor-advisory
- USN-4333-2vendor-advisory
- openSUSE-SU-2020:0696vendor-advisory
- FEDORA-2020-8bdd3fd7a4vendor-advisory
- FEDORA-2020-ea5bdbcc90vendor-advisory
- [debian-lts-announce] 20200715 [SECURITY] [DLA 2280-1] python3.5 security updatemailing-list
- https://www.oracle.com/security-alerts/cpuoct2020.html
- https://bugzilla.redhat.com/show_bug.cgi?id=1727276
- https://bugs.python.org/issue30458#msg347282
- https://security.netapp.com/advisory/ntap-20191107-0004/
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
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