Improper Enforcement of Message Integrity During Transmission in a Communication Channel Affecting qemu-img package, versions <15:6.2.0-11.module+el8.6.0+14707+5aa4b42d
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Test your applications- Snyk ID SNYK-CENTOS8-QEMUIMG-2819836
- published 18 Aug 2021
- disclosed 16 Aug 2021
Introduced: 16 Aug 2021
CVE-2021-3716 Open this link in a new tabHow to fix?
Upgrade Centos:8 qemu-img to version 15:6.2.0-11.module+el8.6.0+14707+5aa4b42d or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream qemu-img package and not the qemu-img package as distributed by Centos.
See How to fix? for Centos:8 relevant fixed versions and status.
A flaw was found in nbdkit due to to improperly caching plaintext state across the STARTTLS encryption boundary. A MitM attacker could use this flaw to inject a plaintext NBD_OPT_STRUCTURED_REPLY before proxying everything else a client sends to the server, potentially leading the client to terminate the NBD session. The highest threat from this vulnerability is to system availability.
References
- https://access.redhat.com/security/cve/CVE-2021-3716
- https://access.redhat.com/errata/RHSA-2022:1759
- https://www.openwall.com/lists/oss-security/2021/08/18/2
- https://gitlab.com/nbdkit/nbdkit/-/commit/09a13dafb7bb3a38ab52eb5501cba786365ba7fd
- https://gitlab.com/nbdkit/nbdkit/-/commit/6c5faac6a37077cf2366388a80862bb00616d0d8
- https://listman.redhat.com/archives/libguestfs/2021-August/msg00083.html
- https://bugzilla.redhat.com/show_bug.cgi?id=1994695