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 remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:9158 advisory.

    LLDP is an industry standard protocol designed to supplant proprietary Link-Layer protocols such as EDP or     CDP. The goal of LLDP is to provide an inter-vendor compatible mechanism to deliver Link-Layer     notifications to adjacent network devices.

    Security Fix(es):

    * lldp/openvswitch: denial of service via externally triggered memory leak (CVE-2020-27827)

    * lldpd: out-of-bounds read when decoding SONMP packets (CVE-2021-43612)

    * lldpd: CDP PDU Packet cdp.c out-of-bounds read (CVE-2023-41910)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

    Additional Changes:

    For detailed information on changes in this release, see the Red Hat Enterprise Linux 9.5 Release Notes     linked from the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of lldpd installed on the remote CBL Mariner 2.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2023-41910 advisory.

  - 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. (CVE-2023-41910)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Debian 11 / 12 host has packages installed that are affected by a vulnerability as referenced in the dsa-5505 advisory.

  - 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. (CVE-2023-41910)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Debian 10 host has packages installed that are affected by a vulnerability as referenced in the dla-3578 advisory.

  - 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. (CVE-2023-41910)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
210792	RHEL 9 : lldpd (RHSA-2024:9158)	Nessus	Red Hat Local Security Checks	critical
182142	CBL Mariner 2.0 Security Update: lldpd (CVE-2023-41910)	Nessus	MarinerOS Local Security Checks	critical
181879	Debian DSA-5505-1 : lldpd - security update	Nessus	Debian Local Security Checks	critical
181818	Debian DLA-3578-1 : lldpd - LTS security update	Nessus	Debian Local Security Checks	critical

Detections

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CVE-2023-41910

critical

Tenable Plugins

critical

critical

critical

critical