CVE-2021-3716 The advisory has been revoked - it doesn't affect any version of package virt:rhel/SLOF (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-ALMALINUX8-VIRT-8067370
- published20 Sept 2024
- disclosed10 May 2022
Introduced: 10 May 2022
CVE-2021-3716 (opens in a new tab)Amendment
The AlmaLinux security team deemed this advisory irrelevant for AlmaLinux:8.
NVD Description
Note: Versions mentioned in the description apply only to the upstream virt:rhel/SLOF package and not the virt:rhel/SLOF package as distributed by AlmaLinux.
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://errata.almalinux.org/8/ALSA-2022-1759.html
- https://vulners.com/cve/CVE-2021-3716
- https://bugzilla.redhat.com/show_bug.cgi?id=1994695
- 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://www.openwall.com/lists/oss-security/2021/08/18/2