CVE-2024-56681

low-risk
Published 2024-12-28

In the Linux kernel, the following vulnerability has been resolved: crypto: bcm - add error check in the ahash_hmac_init function The ahash_init functions may return fails. The ahash_hmac_init should not return ok when ahash_init returns error. For an example, ahash_init will return -ENOMEM when allocation memory is error.

Do I need to act?

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0.01% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.5/10 Medium
LOCAL / LOW complexity

Affected Products (1)

Affected Vendors

Linux

References (11)

Patch https://git.kernel.org/stable/c/05f0a3f5477ecaa1cf46448504afe9e7c2e96fcc
Patch https://git.kernel.org/stable/c/19630cf57233e845b6ac57c9c969a4888925467b
Patch https://git.kernel.org/stable/c/28f8ffa945f7d7150463e15097ea73b19529d6f5
Patch https://git.kernel.org/stable/c/4ea3e3b761e371102bb1486778e2f8dbc9e37413
Patch https://git.kernel.org/stable/c/75e1e38e5d80d6d9011b7322698ffba3dd3db30a
Patch https://git.kernel.org/stable/c/8f1a9a960b1107bd0e0ec3736055f5ed0e717edf
Patch https://git.kernel.org/stable/c/ae5253313e0ea5f00c06176074592b7f493c8546
Patch https://git.kernel.org/stable/c/bba9e38c5ad41d0a88b22a59e5b6dd3e31825118
Patch https://git.kernel.org/stable/c/ee36db8e8203420e6d5c42eb9428920c2fc36532
https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html
https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html
23
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal