Bug 2278753 - CVE-2023-26793 libmodbus: head buffer overflow in read_io_status() [epel-all]
Summary: CVE-2023-26793 libmodbus: head buffer overflow in read_io_status() [epel-all]
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora EPEL
Classification: Fedora
Component: libmodbus
Version: epel8
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: ---
Assignee: Eric Sandeen
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks: CVE-2023-26793
TreeView+ depends on / blocked
 
Reported: 2024-05-03 01:33 UTC by Robb Gatica
Modified: 2026-02-27 00:57 UTC (History)
1 user (show)

Fixed In Version: libmodbus-3.1.12-1.el8 libmodbus-3.1.12-1.el9 libmodbus-3.1.12-1.el10_2
Clone Of:
Environment:
Last Closed: 2026-02-27 00:34:18 UTC
Type: ---
Embargoed:


Attachments (Terms of Use)

Description Robb Gatica 2024-05-03 01:33:38 UTC
More information about this security flaw is available in the following bug:

http://bugzilla.redhat.com/show_bug.cgi?id=2278751

Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

Comment 1 Robb Gatica 2024-05-03 01:33:39 UTC
Use the following template to for the 'fedpkg update' request to submit an
update for this issue as it contains the top-level parent bug(s) as well as
this tracking bug.  This will ensure that all associated bugs get updated
when new packages are pushed to stable.

=====

# bugfix, security, enhancement, newpackage (required)
type=security

# low, medium, high, urgent (required)
severity=medium

# testing, stable
request=testing

# Bug numbers: 1234,9876
bugs=2278751,2278753

# Description of your update
notes=Security fix for [PUT CVEs HERE]

# Enable request automation based on the stable/unstable karma thresholds
autokarma=True
stable_karma=3
unstable_karma=-3

# Automatically close bugs when this marked as stable
close_bugs=True

# Suggest that users restart after update
suggest_reboot=False

======

Additionally, you may opt to use the bodhi web interface to submit updates:

https://bodhi.fedoraproject.org/updates/new

Comment 3 Fedora Update System 2026-02-18 13:34:17 UTC
FEDORA-EPEL-2026-19c3e58e98 (libmodbus-3.1.12-1.el9) has been submitted as an update to Fedora EPEL 9.
https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-19c3e58e98

Comment 4 Fedora Update System 2026-02-18 13:34:17 UTC
FEDORA-EPEL-2026-ba6edda336 (libmodbus-3.1.12-1.el8) has been submitted as an update to Fedora EPEL 8.
https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-ba6edda336

Comment 5 Fedora Update System 2026-02-19 01:48:14 UTC
FEDORA-EPEL-2026-ba6edda336 has been pushed to the Fedora EPEL 8 testing repository.

You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-ba6edda336

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 6 Fedora Update System 2026-02-19 01:54:12 UTC
FEDORA-EPEL-2026-19c3e58e98 has been pushed to the Fedora EPEL 9 testing repository.

You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-19c3e58e98

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 7 Fedora Update System 2026-02-19 02:04:27 UTC
FEDORA-EPEL-2026-a1ddf58ed9 has been pushed to the Fedora EPEL 10.2 testing repository.

You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-a1ddf58ed9

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 8 Fedora Update System 2026-02-27 00:34:18 UTC
FEDORA-EPEL-2026-ba6edda336 (libmodbus-3.1.12-1.el8) has been pushed to the Fedora EPEL 8 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 9 Fedora Update System 2026-02-27 00:45:51 UTC
FEDORA-EPEL-2026-19c3e58e98 (libmodbus-3.1.12-1.el9) has been pushed to the Fedora EPEL 9 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 10 Fedora Update System 2026-02-27 00:57:25 UTC
FEDORA-EPEL-2026-a1ddf58ed9 (libmodbus-3.1.12-1.el10_2) has been pushed to the Fedora EPEL 10.2 stable repository.
If problem still persists, please make note of it in this bug report.


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