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cve 2025 40019

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CVE-2025-40019 is a Linux kernel vulnerability in the ESSIV AEAD crypto path, where a missing size check could affect decryption and in-place encryption. While Microsoft's Azure Linux includes the affected open-source library, the issue is not exclusive to Microsoft products. The upstream fix moves the size check to the start of essiv_aead_crypt, and multiple distribution trackers have mapped the change into vendor kernel updates. Discussions on WindowsForum clarify that Microsoft's advisory is product-scoped and does not rule out other Microsoft products containing the same vulnerable code. The tag covers technical analysis of the vulnerability, its fix, and its broader implications across Linux distributions.
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    Azure Linux Attestation Explained: CVE-2025-40019 Is Not Exclusive to Microsoft

    Microsoft’s terse note that “Azure Linux includes this open‑source library and is therefore potentially affected” is accurate — but it’s a product‑scoped attestation, not proof that no other Microsoft product can contain the same vulnerable code. The upstream fix for CVE‑2025‑40019 addresses a...
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    • artifact verification azure linux cve 2025 40019 supply chain transparency
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    • Forum: Security Alerts
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