CVE-2022-0485
First published: Thu Jan 27 2022(Updated: )
A flaw was found in the copying tool `nbdcopy` of libnbd. When performing multi-threaded copies using asynchronous nbd calls, nbdcopy was blindly treating the completion of an asynchronous command as successful, rather than checking the *error parameter. This could result in the silent creation of a corrupted destination image.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Redhat Libnbd | <1.11.8 | |
| Redhat Enterprise Linux | =8.0 |
Remedy
Use of `nbdcopy --synchronous` will avoid undetected data corruption, but comes at a potential performance cost by avoiding the speed benefits of asynchronous operations. See the upstream security advisory for more information.
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Reference Links
- https://access.redhat.com/security/cve/CVE-2022-0485
- https://bugzilla.redhat.com/show_bug.cgi?id=2046194
- https://bugzilla.redhat.com/show_bug.cgi?id=2050324
- https://gitlab.com/nbdkit/libnbd/-/commit/8d444b41d09a700c7ee6f9182a649f3f2d325abb
- https://listman.redhat.com/archives/libguestfs/2022-February/msg00104.html
- https://listman.redhat.com/archives/libguestfs/2022-February/msg00039.html
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2050325
- https://listman.redhat.com/archives/libguestfs/2022-February/msg00059.html
- https://access.redhat.com/errata/RHSA-2022:0949
- https://access.redhat.com/errata/RHSA-2022:0971
- https://access.redhat.com/errata/RHSA-2022:1759
- https://access.redhat.com/errata/RHSA-2022:2181
- https://access.redhat.com/security/cve/cve-2022-0485
- https://www.cve.org/CVERecord?id=CVE-2022-0485 https://nvd.nist.gov/vuln/detail/CVE-2022-0485 https://listman.redhat.com/archives/libguestfs/2022-February/msg00104.html
Parent vulnerabilities
(Appears in the following advisories)
Frequently Asked Questions
What is CVE-2022-0485?
CVE-2022-0485 is a vulnerability found in the copying tool `nbdcopy` of libnbd.
What is the severity of CVE-2022-0485?
The severity of CVE-2022-0485 is medium (4).
How does CVE-2022-0485 affect libnbd?
CVE-2022-0485 affects libnbd version 1.11.8 and earlier.
How can I fix CVE-2022-0485?
To fix CVE-2022-0485, update libnbd to version 1.11.8 or later.
What is the CWE ID of CVE-2022-0485?
The CWE ID of CVE-2022-0485 is CWE-252.
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