lldpd up to 1.0.16 CDP PDU Packet daemon/protocols/cdp.c out-of-bounds

Summaryinfo

A vulnerability was found in lldpd up to 1.0.16 and classified as problematic. Affected by this vulnerability is an unknown functionality of the file daemon/protocols/cdp.c of the component CDP PDU Packet Handler. The manipulation results in out-of-bounds. This vulnerability was named CVE-2023-41910. The attack may be performed from remote. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in lldpd up to 1.0.16. Affected is an unknown code of the file daemon/protocols/cdp.c of the component CDP PDU Packet Handler. The manipulation with an unknown input leads to a out-of-bounds vulnerability. CWE is classifying the issue as CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality. CVE summarizes:

An issue was discovered in lldpd before 1.0.17. By crafting a CDP PDU packet with specific CDP_TLV_ADDRESSES TLVs, a malicious actor can remotely force the lldpd daemon to perform an out-of-bounds read on heap memory. This occurs in cdp_decode in daemon/protocols/cdp.c.

The weakness was presented 09/05/2023 as a9aeabdf879c25c584852a0bb5523837632f099b. The advisory is shared for download at github.com. This vulnerability is traded as CVE-2023-41910 since 09/05/2023. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 232903 (RockyLinux 9 : lldpd (RLSA-2024:9158)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 1.0.17 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch a9aeabdf879c25c584852a0bb5523837632f099b is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (232903) and EUVD (EUVD-2023-46388). Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

• lldpd

Version

• 1.0.0
• 1.0.1
• 1.0.2
• 1.0.3
• 1.0.4
• 1.0.5
• 1.0.6
• 1.0.7
• 1.0.8
• 1.0.9
• 1.0.10
• 1.0.11
• 1.0.12
• 1.0.13
• 1.0.14
• 1.0.15
• 1.0.16

License

• open-source

Website

• Product: https://github.com/lldpd/lldpd/

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Once again VulDB remains the best source for vulnerability data.

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