Out-of-bounds read in lldpd - CVE-2023-41910
Published: November 12, 2024
Vulnerability identifier: #VU100252
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-41910
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to a boundary condition within the cdp_decode() function in daemon/protocols/cdp.c. A remote attacker can send a specially crafted CDP PDU packet with specific CDP_TLV_ADDRESSES TLVs, trigger an out-of-bounds read and execute arbitrary code on the system.
Affected software
lldpd
Anolis OS
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for ARM 64
lldpd (Red Hat package)
lldpd
lldpd-devel
Anolis OS
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for ARM 64
lldpd (Red Hat package)
lldpd
lldpd-devel
How to mitigate CVE-2023-41910
Install updates from vendor's website.
lldpd - update to 1.0.17
lldpd (Red Hat package) - update to 1.0.18-4.el9
lldpd - update to 1.0.18-4.0.1
lldpd-devel - update to 1.0.18-4.0.1
lldpd (Red Hat package) - update to 1.0.18-4.el9
lldpd - update to 1.0.18-4.0.1
lldpd-devel - update to 1.0.18-4.0.1