Bug 2149380 (CVE-2022-45939) - CVE-2022-45939 emacs: ctags local command execution vulnerability
Summary: CVE-2022-45939 emacs: ctags local command execution vulnerability
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2022-45939
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: 2149381 2149386 2149387
Blocks: 2149382
TreeView+ depends on / blocked
 
Reported: 2022-11-29 18:46 UTC by Guilherme de Almeida Suckevicz
Modified: 2024-03-05 17:05 UTC (History)
1 user (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
A flaw was found in Etags, the Ctags implementation of Emacs. A file with a crafted filename may result in arbitrary command execution when processed by Etags.
Clone Of:
Environment:
Last Closed: 2023-05-17 02:32:29 UTC
Embargoed:

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Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2023:2366 0 None None None 2023-05-09 07:35:56 UTC
Red Hat Product Errata RHSA-2023:3042 0 None None None 2023-05-16 08:46:39 UTC
Red Hat Product Errata RHSA-2024:1103 0 None None None 2024-03-05 17:05:25 UTC

Description Guilherme de Almeida Suckevicz 2022-11-29 18:46:00 UTC 
GNU Emacs through 28.2 allows attackers to execute commands via shell metacharacters in the name of a source-code file, because lib-src/etags.c uses the system C library function in its implementation of the ctags program. For example, a victim may use the "ctags *" command (suggested in the ctags documentation) in a situation where the current working directory has contents that depend on untrusted input.

Reference and upstream patch:
https://git.savannah.gnu.org/cgit/emacs.git/commit/?id=d48bb4874bc6cd3e69c7a15fc3c91cc141025c51
Comment 1 Guilherme de Almeida Suckevicz 2022-11-29 18:46:19 UTC 
Created emacs tracking bugs for this issue:

Affects: fedora-all [bug 2149381]
Comment 3 errata-xmlrpc 2023-05-09 07:35:54 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2023:2366 https://access.redhat.com/errata/RHSA-2023:2366
Comment 4 errata-xmlrpc 2023-05-16 08:46:38 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2023:3042 https://access.redhat.com/errata/RHSA-2023:3042
Comment 5 Product Security DevOps Team 2023-05-17 02:32:27 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-2022-45939
Comment 7 errata-xmlrpc 2024-03-05 17:05:24 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.6 Extended Update Support

Via RHSA-2024:1103 https://access.redhat.com/errata/RHSA-2024:1103
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