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ALSA-2024:9158 — Moderate: lldpd security update

Affected: AlmaLinux:9: lldpd, AlmaLinux:9: lldpd-devel

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 AlmaLinux Release Notes linked from the References section.

bdu:2024-04479

certfr-2024-avi-0478 — De multiples vulnérabilités ont été découvertes dans les produits Siemens. Certaines d'entre elles permettent à un atta…

certfr-2024-avi-0478

EUVD-2026-190233

fkie_cve-2023-41910

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.

GHSA-5vp9-2h7g-hxq8

gsd-2023-41910

ICSA-24-165-06 — Siemens TIM 1531 IRC

In the Linux kernel, the following vulnerability has been resolved: scsi: target: core: Avoid smp_processor_id() in preemptible code. A flaw was found in the Linux kernel in linux/net/netfilter/nf_tables_api.c of the netfilter subsystem. This flaw allows a local user to cause an out-of-bounds write issue. A timing based side channel exists in the OpenSSL RSA Decryption implementation which could be sufficient to recover a plaintext across a network in a Bleichenbacher style attack. To achieve a successful decryption an attacker would have to be able to send a very large number of trial messages for decryption. The vulnerability affects all RSA padding modes: PKCS#1 v1.5, RSA-OEAP and RSASVE. For example, in a TLS connection, RSA is commonly used by a client to send an encrypted pre-master secret to the server. An attacker that had observed a genuine connection between a client and a server could use this flaw to send trial messages to the server and record the time taken to process them. After a sufficiently large number of messages the attacker could recover the pre-master secret used for the original connection and thus be able to decrypt the application data sent over that connection. The function PEM_read_bio_ex() reads a PEM file from a BIO and parses and decodes the "name" (e.g. "CERTIFICATE"), any header data and the payload data. If the function succeeds then the "name_out", "header" and "data" arguments are populated with pointers to buffers containing the relevant…

msrc_CVE-2023-41910 — An issue was discovered in lldpd before 1.0.17. By crafting a CDP PDU packet with specific CDP_TLV_ADDRESSES TLVs a mal…

msrc_CVE-2023-41910

RHSA-2024:9158 — Red Hat Security Advisory: lldpd security update

lldp/openvswitch: denial of service via externally triggered memory leak lldpd: out-of-bounds read when decoding SONMP packets lldpd: CDP PDU Packet cdp.c out-of-bounds read

UBUNTU-CVE-2023-41910

Affected: Ubuntu:16.04:LTS: lldpd, Ubuntu:18.04:LTS: lldpd, Ubuntu:20.04:LTS: lldpd, Ubuntu:22.04:LTS: lldpd