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Medium ALAS2-2025-2750 1 CVE

Moderate: edk2 security update (Amazon Linux 2)

Published Jan 30, 2025 · Updated Feb 4, 2025

Summary

Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2024-13176: Issue summary: A timing side-channel which could potentially allow recovering the private key exists in the ECDSA signature computation. Impact summary: A timing side-channel in ECDSA signature computations could allow recovering the private key by an attacker. However, measuring the timing would require either local access to the signing application or a very fast network connection with low latency. There is a timing signal of around 300 nanoseconds when the top word of the inverted ECDSA nonce value is zero. This can happen with significant probability only for some of the supported elliptic curves. In particular the NIST P-521 curve is affected. To be able to measure this leak, the attacker process must either be located in the same physical computer or must have a very fast network connection with low latency. For that reason the severity of this vulnerability is Low.

Fixed packages 5

ReleasePackageFixed in
Amazon Linux · 2 edk2-aarch64 0:20240813-298.amzn2
Amazon Linux · 2 edk2-debuginfo 0:20240813-298.amzn2
Amazon Linux · 2 edk2-ovmf 0:20240813-298.amzn2
Amazon Linux · 2 edk2-tools 0:20240813-298.amzn2
Amazon Linux · 2 edk2-tools-doc 0:20240813-298.amzn2

Vulnerabilities 1

  • Medium 4.6
    CVE-2024-13176 Public exploit

    Timing side-channel in ECDSA signature computation

    Issue summary: A timing side-channel which could potentially allow recovering the private key exists in the ECDSA signature computation. Impact summary: A timing side-channel in ECDSA signature computations could allow recovering the private key by an attacke…

References

  • web
    https://alas.aws.amazon.com/cve/html/CVE-2024-13176.html