Buffer overflow in Network Block Device Project
CVE-2022-26496
In nbd-server in nbd before 3.24, there is a stack-based buffer overflow. An attacker can cause a buffer overflow in the parsing of the name field by sending a crafted NBD_OPT_INFO or NBD_OPT_GO message with an large value as the length of the name.
Vulnerability class: Buffer Overflow
EPSS: 0.035 (88.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Network_block_device_project Network_block_device
- Debian Debian_linux — versions 10.0, 11.0
- Fedoraproject Fedora — versions 34, 35, 36
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Exploit, Mailing List, Third Party Advisory)
- cve@mitre.org (Product, Third Party Advisory, Release Notes)
- cve@mitre.org (Mailing List, Third Party Advisory)
- cve@mitre.org (vendor-advisory, Third Party Advisory)
- cve@mitre.org (vendor-advisory)
- cve@mitre.org (vendor-advisory)
- cve@mitre.org (vendor-advisory)
- cve@mitre.org
- cve@mitre.org (vendor-advisory)
Frequently asked questions
- What is CVE-2022-26496?
- CVE-2022-26496 is a critical-severity vulnerability in Network Block Device Project, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2022-03-06.
- How severe is CVE-2022-26496?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2022-26496 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.