Bug 2278751 (CVE-2023-26793) - CVE-2023-26793 libmodbus: head buffer overflow in read_io_status()
Summary: CVE-2023-26793 libmodbus: head buffer overflow in read_io_status()
Keywords:
Status: NEW
Alias: CVE-2023-26793
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2278752 2278753
Blocks:
TreeView+ depends on / blocked
 
Reported: 2024-05-03 01:33 UTC by Robb Gatica
Modified: 2024-05-03 19:06 UTC (History)
1 user (show)

Fixed In Version:
Clone Of:
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Description Robb Gatica 2024-05-03 01:33:30 UTC 
libmodbus v3.1.10 has a heap-based buffer overflow vulnerability in read_io_status function in src/modbus.c.

https://github.com/stephane/libmodbus/issues/683
Comment 1 Robb Gatica 2024-05-03 01:33:44 UTC 
Created libmodbus tracking bugs for this issue:

Affects: epel-all [bug 2278753]
Affects: fedora-all [bug 2278752]
Comment 2 Eric Sandeen 2024-05-03 19:06:42 UTC 
There does not seem to be a resolution to this CVE upstream at this time.
The POC is not entirely clear, they may be fuzzing a response to the test server; I've asked for clarification in the github issue.
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