MEDIUM 5.5 Microsoft
CVE-2025-21666
vsock: prevent null-ptr-deref in vsock_*[has_data|has_space]
Microsoft Security Update 2025-Jan: vsock: prevent null-ptr-deref in vsock_*[has_data|has_space]
Affected Products
- cbl2 kernel 5.15.180.1-1 on CBL Mariner 2.0
- azl3 kernel 6.6.76.1-1 on Azure Linux 3.0
- azl3 kernel 6.6.64.2-9 on Azure Linux 3.0
- cbl2 kernel 5.15.176.3-3 on CBL Mariner 2.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21666
- https://nvd.nist.gov/vuln/detail/CVE-2025-21666
This medium severity vulnerability with a CVSS score of 5.5 was published on 2025-01-14 via Microsoft. Affected: cbl2 kernel 5.15.180.1-1 on CBL Mariner 2.0, azl3 kernel 6.6.76.1-1 on Azure Linux 3.0, azl3 kernel 6.6.64.2-9 on Azure Linux 3.0 and 1 more.
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