#VU82550 Unchecked Return Value in libnbd - CVE-2023-5215

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Main Vulnerability Database Vulnerabilities #VU82550

#VU82550 Unchecked Return Value in libnbd - CVE-2023-5215

Published: October 30, 2023


Vulnerability identifier: #VU82550
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2023-5215
CWE-ID: CWE-252
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
libnbd
Software vendor:
libguestfs

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper input validation when handling server responses in NBD client. A remote server can return a block size larger than 2^63 and crash the client.


Remediation

Install updates from vendor's website.

External links