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Vulnerabilities / CVE-2022-26495

critical

CVE-2022-26495

In nbd-server in nbd before 3.24, there is an integer overflow with a ...

Published Modified CWE 190
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Trivy's own label is CRITICAL. Rated critical by NVD. Rated lower by Ubuntu (medium).

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.

Affected packages and fixed versions

SourcePackageFixed in
alpine 3.16nbd3.24-r0
alpine 3.17nbd3.24-r0
alpine 3.18nbd3.24-r0
alpine 3.19nbd3.24-r0
alpine 3.20nbd3.24-r0
alpine 3.21nbd3.24-r0
alpine 3.22nbd3.24-r0
alpine 3.23nbd3.24-r0
alpine 3.24nbd3.24-r0
alpine edgenbd3.24-r0
debian 10nbd1:3.19-3+deb10u1
debian 11nbd1:3.21-1+deb11u1
Show all 32 entries from 32 sources
SourcePackageFixed in
alpine 3.16nbd3.24-r0
alpine 3.17nbd3.24-r0
alpine 3.18nbd3.24-r0
alpine 3.19nbd3.24-r0
alpine 3.20nbd3.24-r0
alpine 3.21nbd3.24-r0
alpine 3.22nbd3.24-r0
alpine 3.23nbd3.24-r0
alpine 3.24nbd3.24-r0
alpine edgenbd3.24-r0
debian 10nbd1:3.19-3+deb10u1
debian 11nbd1:3.21-1+deb11u1
debian 12nbd1:3.24-1
debian 13nbd1:3.24-1
debian 14nbd1:3.24-1
debian 9nbd1:3.15.2-3+deb9u1
echonbd1:3.24-1
ubuntu 18.04nbd1:3.16.2-1ubuntu0.2
ubuntu 18.04-ESMnbd1:3.16.2-1ubuntu0.2
ubuntu 20.04nbd1:3.20-1ubuntu0.1
ubuntu 20.04-ESMnbd1:3.20-1ubuntu0.1
ubuntu 21.10nbd1:3.21-1ubuntu0.1
ubuntu 22.04nbd1:3.23-3ubuntu1
ubuntu 22.10nbd1:3.23-3ubuntu1
ubuntu 23.04nbd1:3.23-3ubuntu1
ubuntu 23.10nbd1:3.23-3ubuntu1
ubuntu 24.04nbd1:3.23-3ubuntu1
ubuntu 24.10nbd1:3.23-3ubuntu1
ubuntu 25.04nbd1:3.23-3ubuntu1
ubuntu 25.10nbd1:3.23-3ubuntu1
ubuntu 26.04nbd1:3.23-3ubuntu1
ubuntu 26.10nbd1:3.23-3ubuntu1

References

All 10 references

Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.