CVE-2024-34244: libmodbus Buffer Overflow

Description

libmodbus v3.1.10 is vulnerable to Buffer Overflow via the modbus_write_bits function. This issue can be triggered when the function is fed with specially crafted input, which leads to out-of-bounds read and can potentially cause a crash or other unintended behaviors.

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CVSS v3.1 Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-120 CWE-120

CWE-125 Out-of-bounds Read

Affected Products

Vendor	Product	Versions
libmodbus	libmodbus	All

References

Advisories & Patches

https://github.com/stephane/libmodbus/issues/743 https://github.com/stephane/libmodbus/issues/743

Exploits

https://github.com/stephane/libmodbus/issues/743 https://github.com/stephane/libmodbus/issues/743

Frequently Asked Questions

What is CVE-2024-34244? +

libmodbus v3.1.10 is vulnerable to Buffer Overflow via the modbus_write_bits function. This issue can be triggered when the function is fed with specially crafted input, which leads to out-of-bounds read and can potentially cause a crash or other unintended behaviors. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2024-34244? +

CVE-2024-34244 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2024-34244? +

CVE-2024-34244 affects products from libmodbus, specifically: libmodbus. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-34244? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2024-34244