Integer overflow in nbd - CVE-2022-26495
Published: March 22, 2022
Vulnerability identifier: #VU61541
CSH Severity: High
CVSS v4.0: 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/E:U/U:Amber
CVE-ID: CVE-2022-26495
CWE-ID: CWE-190
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: nbd.sourceforge.net
Affected software:
nbd
nbd
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to integer overflow when processing NBD_OPT_INFO, NBD_OPT_GO, and NBD_OPT_EXPORT_NAME messages. A remote attacker can pass specially crafted data to the application, trigger an integer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
How to mitigate CVE-2022-26495
Install updates from vendor's website.
Sources
- https://sourceforge.net/projects/nbd/files/nbd/
- https://lists.debian.org/nbd/2022/01/msg00037.html
- https://lists.debian.org/debian-lts-announce/2022/03/msg00014.html
- https://www.debian.org/security/2022/dsa-5100
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IZHR73XMAJTCFGKUZRXVTZKCK2X3IFNA/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PU5JFD4PEJED72TZLZ5R2Q2SFXICU5I5/