🛡️ CVE-2022-26495
🔴 CVSS 9.8 — Critical ⚠️ Exploit Public CWE-190 NVD
9.8
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

In nbd-server in nbd before 3.24, there is an integer overflow with a resultant heap-based buffer overflow. A value of 0xffffffff in the name length field will cause a zero-sized buffer to be allocated for the name, resulting in a write to a dangling pointer. This issue exists for the NBD_OPT_INFO, NBD_OPT_GO, and NBD_OPT_EXPORT_NAME messages.

Details

Severity CRITICAL
CVSS Score 9.8
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE CWE-190
Public Exploit ⚠️ Yes
Source NVD
Published 2022-03-06
Updated 2026-06-08
Modified 2024-11-21
Fix URL N/A

Affected Packages

Software From version Fixed in
debian-linux
fedora
network-block-device 3.24

References

Exploit, Mailing List, Third Party Advisory https://lists.debian.org/nbd/2022/01/msg00037.html
Product, Release Notes, Third Party Advisory https://sourceforge.net/projects/nbd/files/nbd/
Exploit, Mailing List, Third Party Advisory https://lists.debian.org/nbd/2022/01/msg00037.html
Product, Release Notes, Third Party Advisory https://sourceforge.net/projects/nbd/files/nbd/

Similar Threats

Patch Gap Protection

Running software with known vulnerabilities?

BotEraser can help reduce exposure by blocking IPs associated with exploit activity — even before a patch is available.

Start Free →

No credit card required  ·  Results in minutes

ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.