CVE-2019-9947
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 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.
How to fix
- python python2.7.17, 3.5.8, 3.6.9, 3.7.4 or later
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JXASHCDD4PQFKTMKQN4YOP5ZH366ABN4/
- access.redhat.com/errata/RHSA-2019:1260
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JMWSKTNOHSUOT3L25QFJAVCFYZX46FYK/
- access.redhat.com/errata/RHSA-2019:2030
- usn.ubuntu.com/4127-2/
- usn.ubuntu.com/4127-1/
- access.redhat.com/errata/RHSA-2019:3335
- access.redhat.com/errata/RHSA-2019:3520
- access.redhat.com/errata/RHSA-2019:3725
- security.gentoo.org/glsa/202003-26
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| python python | 2.7.0 ≤ v < 2.7.17, 3.5.0 ≤ v < 3.5.8, 3.6.0 ≤ v < 3.6.9, 3.7.0 ≤ v < 3.7.4 | 2.7.17, 3.5.8, 3.6.9, 3.7.4 |
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