Bug 1763229 (CVE-2019-16935) - CVE-2019-16935 python: XSS vulnerability in the documentation XML-RPC server in server_title field
Summary: CVE-2019-16935 python: XSS vulnerability in the documentation XML-RPC server ...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2019-16935
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1763231 1759944 1763230 1763232 1763233 1763234 1763235 1763236 1763237 1797998 1797999 1798000 1798001 1798002 1798003
Blocks: 1763239
TreeView+ depends on / blocked
 
Reported: 2019-10-18 14:24 UTC by kat
Modified: 2021-02-16 21:13 UTC (History)
19 users (show)

Fixed In Version: python 2.7.17, python 3.5.8, python 3.6.10, python 3.7.5
Doc Type: If docs needed, set a value
Doc Text:
A reflected cross-site scripting (XSS) vulnerability was found in Python XML-RPC server. The `server_title` field is not sufficiently sanitized allowing malicious JavaScript to be injected. Successful exploitation would allow a remote attacker to execute JavaScript code within the context of the affected user.
Clone Of:
Environment:
Last Closed: 2020-09-29 21:58:38 UTC

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2020:3888 0 None None None 2020-09-29 19:36:41 UTC
Red Hat Product Errata RHSA-2020:3911 0 None None None 2020-09-29 19:46:15 UTC
Red Hat Product Errata RHSA-2020:4285 0 None None None 2020-10-19 18:05:38 UTC
Red Hat Product Errata RHSA-2020:4433 0 None None None 2020-11-04 00:51:36 UTC

Description kat 2019-10-18 14:24:20 UTC 
The documentation XML-RPC server in various Python versions has XSS via the server_title field. This occurs in Lib/DocXMLRPCServer.py in Python 2.x, and in Lib/xmlrpc/server.py in Python 3.x. If set_server_title is called with untrusted input, arbitrary JavaScript can be delivered to clients that visit the http URL for this server.

Upstream bug:

https://bugs.python.org/issue38243

Upstream pull request and commits:

https://github.com/python/cpython/pull/16373

master: https://github.com/python/cpython/commit/e8650a4f8c7fb76f570d4ca9c1fbe44e91c8dfaa
3.6: https://github.com/python/cpython/commit/1698cacfb924d1df452e78d11a4bf81ae7777389
2.7: https://github.com/python/cpython/commit/8eb64155ff26823542ccf0225b3d57b6ae36ea89
Comment 1 kat 2019-10-18 14:24:48 UTC 
Created python2 tracking bugs for this issue:

Affects: fedora-all [bug 1763232]


Created python3 tracking bugs for this issue:

Affects: fedora-all [bug 1763233]


Created python34 tracking bugs for this issue:

Affects: epel-all [bug 1763231]
Affects: fedora-all [bug 1763234]


Created python35 tracking bugs for this issue:

Affects: fedora-all [bug 1763235]


Created python36 tracking bugs for this issue:

Affects: epel-7 [bug 1763230]
Affects: fedora-all [bug 1763236]


Created python38 tracking bugs for this issue:

Affects: fedora-all [bug 1763237]
Comment 6 Mauro Matteo Cascella 2020-02-19 11:03:53 UTC 
Statement:

This flaw does not affect the versions of python27-python as shipped with Red Hat Software Collections 3 as they already include the fix.
This flaw does not affect the versions of python36:3.6/python36 as shipped with Red Hat Enterprise Linux 8 as they are "symlinks" to the main python3 component, which provides the actual interpreter of the Python programming language.
Comment 7 errata-xmlrpc 2020-09-29 19:36:33 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2020:3888 https://access.redhat.com/errata/RHSA-2020:3888
Comment 8 errata-xmlrpc 2020-09-29 19:46:16 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2020:3911 https://access.redhat.com/errata/RHSA-2020:3911
Comment 9 Product Security DevOps Team 2020-09-29 21:58:38 UTC 
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2019-16935
Comment 12 errata-xmlrpc 2020-10-19 18:05:36 UTC 
This issue has been addressed in the following products:

  Red Hat Software Collections for Red Hat Enterprise Linux 6
  Red Hat Software Collections for Red Hat Enterprise Linux 7
  Red Hat Software Collections for Red Hat Enterprise Linux 7.6 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 7.7 EUS

Via RHSA-2020:4285 https://access.redhat.com/errata/RHSA-2020:4285
Comment 13 errata-xmlrpc 2020-11-04 00:51:35 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2020:4433 https://access.redhat.com/errata/RHSA-2020:4433
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