Bug 2138705 (CVE-2022-42919) - CVE-2022-42919 python: local privilege escalation via the multiprocessing forkserver start method
Summary: CVE-2022-42919 python: local privilege escalation via the multiprocessing for...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2022-42919
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2138709 2138710 2138711 2138712 2138713 2138714 2138715 2138716 2138717 2138718 2138719 2138720 2138721
Blocks: 2138257
TreeView+ depends on / blocked
 
Reported: 2022-10-31 04:24 UTC by Sandipan Roy
Modified: 2025-01-08 08:55 UTC (History)
5 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2023-05-16 15:43:59 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2022:8517 0 None None None 2022-11-17 00:01:07 UTC
Red Hat Product Errata RHBA-2022:8519 0 None None None 2022-11-17 00:54:18 UTC
Red Hat Product Errata RHBA-2022:8606 0 None None None 2022-11-22 16:32:06 UTC
Red Hat Product Errata RHBA-2022:8607 0 None None None 2022-11-22 16:34:14 UTC
Red Hat Product Errata RHBA-2022:8611 0 None None None 2022-11-22 17:06:10 UTC
Red Hat Product Errata RHBA-2022:8613 0 None None None 2022-11-22 18:06:26 UTC
Red Hat Product Errata RHBA-2022:8630 0 None None None 2022-11-28 01:11:20 UTC
Red Hat Product Errata RHBA-2022:8631 0 None None None 2022-11-28 01:11:15 UTC
Red Hat Product Errata RHBA-2022:8632 0 None None None 2022-11-28 01:11:08 UTC
Red Hat Product Errata RHBA-2022:8636 0 None None None 2022-11-28 09:08:01 UTC
Red Hat Product Errata RHBA-2022:8642 0 None None None 2022-11-28 10:10:08 UTC
Red Hat Product Errata RHSA-2022:8492 0 None None None 2022-11-16 10:28:52 UTC
Red Hat Product Errata RHSA-2022:8493 0 None None None 2022-11-16 10:37:28 UTC

Description Sandipan Roy 2022-10-31 04:24:39 UTC 
CVE-2022-42919:

Python 3.9, 3.10, and 3.11.0rc2 on Linux may allow for a local privilege escalation attack in a non-default configuration when code uses the multiprocessing module and configures multiprocessing to use the forkserver start method.

Reference:
https://github.com/python/cpython/issues/97514
Comment 1 Sandipan Roy 2022-10-31 04:35:58 UTC 
Created pypy3.9 tracking bugs for this issue:

Affects: fedora-all [bug 2138712]


Created python3.10 tracking bugs for this issue:

Affects: fedora-all [bug 2138709]


Created python3.11 tracking bugs for this issue:

Affects: fedora-all [bug 2138710]


Created python3.9 tracking bugs for this issue:

Affects: fedora-all [bug 2138711]
Comment 3 Lumír Balhar 2022-11-07 11:08:48 UTC 
I'd like to create a reproducer for this issue but I'm afraid it's far from easy.
Comment 4 errata-xmlrpc 2022-11-16 10:28:51 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.4 Extended Update Support
  Red Hat Enterprise Linux 8
  Red Hat Enterprise Linux 8.6 Extended Update Support

Via RHSA-2022:8492 https://access.redhat.com/errata/RHSA-2022:8492
Comment 5 errata-xmlrpc 2022-11-16 10:37:26 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.0 Extended Update Support
  Red Hat Enterprise Linux 9

Via RHSA-2022:8493 https://access.redhat.com/errata/RHSA-2022:8493
Comment 6 Fedora Update System 2022-11-23 01:15:59 UTC 
FEDORA-2022-a7cad6bd22 has been pushed to the Fedora 37 stable repository.
If problem still persists, please make note of it in this bug report.
Comment 7 Product Security DevOps Team 2023-05-16 15:43:56 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-2022-42919
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