CVE-2023-39541: uc-tcp-ip Out-of-bounds Read — Exploit

Description

A denial of service vulnerability exists in the ICMP and ICMPv6 parsing functionality of Weston Embedded uC-TCP-IP v3.06.01. A specially crafted network packet can lead to an out-of-bounds read. An attacker can send a malicious packet to trigger this vulnerability.This vulnerability concerns a denial of service within the parsing an IPv6 ICMPv6 packet.

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CVSS v3.1 Score

5.9

MEDIUM

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

Weakness Type (CWE)

CWE-126 CWE-126

CWE-125 Out-of-bounds Read

Affected Products

Vendor	Product	Versions
weston-embedded	uc-tcp-ip	All

References

Exploits

https://talosintelligence.com/vulnerability_reports/TALOS-2023-1828 https://talosintelligence.com/vulnerability_reports/TALOS-2023-1828

Other References

https://www.talosintelligence.com/vulnerability_reports/TALOS-2023-1828

Frequently Asked Questions

What is CVE-2023-39541? +

A denial of service vulnerability exists in the ICMP and ICMPv6 parsing functionality of Weston Embedded uC-TCP-IP v3.06.01. A specially crafted network packet can lead to an out-of-bounds read. An attacker can send a malicious packet to trigger this vulnerability.This vulnerability concerns a denial of service within the parsing an IPv6 ICMPv6 packet. It has a CVSS v3.1 base score of 5.9 (MEDIUM).

How severe is CVE-2023-39541? +

CVE-2023-39541 has a CVSS v3.1 score of 5.9 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2023-39541? +

CVE-2023-39541 affects products from weston-embedded, specifically: uc-tcp-ip. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2023-39541? +

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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