CVE-2024-42098 (GCVE-0-2024-42098)

Vulnerability from cvelistv5 – Published: 2024-07-29 17:39 – Updated: 2026-05-11 20:26
VLAI
Title
crypto: ecdh - explicitly zeroize private_key
Summary
In the Linux kernel, the following vulnerability has been resolved: crypto: ecdh - explicitly zeroize private_key private_key is overwritten with the key parameter passed in by the caller (if present), or alternatively a newly generated private key. However, it is possible that the caller provides a key (or the newly generated key) which is shorter than the previous key. In that scenario, some key material from the previous key would not be overwritten. The easiest solution is to explicitly zeroize the entire private_key array first. Note that this patch slightly changes the behavior of this function: previously, if the ecc_gen_privkey failed, the old private_key would remain. Now, the private_key is always zeroized. This behavior is consistent with the case where params.key is set and ecc_is_key_valid fails.
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-10 16:18 UTC
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6641 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 3c4b23901a0c766879dff680cd6bdab47bcdbbd2 , < 39173b04abda87872b43c331468a4a14f8f05ce8 (git)
Affected: 3c4b23901a0c766879dff680cd6bdab47bcdbbd2 , < fd7ef325911eba1b7191b83cb580463242f2090d (git)
Affected: 3c4b23901a0c766879dff680cd6bdab47bcdbbd2 , < 80575b252ab0358b7e93895b2a510beb3cb3f975 (git)
Affected: 3c4b23901a0c766879dff680cd6bdab47bcdbbd2 , < d96187eb8e59b572a8e6a68b6a9837a867ea29df (git)
Affected: 3c4b23901a0c766879dff680cd6bdab47bcdbbd2 , < 73e5984e540a76a2ee1868b91590c922da8c24c9 (git)
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Linux Linux Affected: 4.8
Unaffected: 0 , < 4.8 (semver)
Unaffected: 5.15.162 , ≤ 5.15.* (semver)
Unaffected: 6.1.97 , ≤ 6.1.* (semver)
Unaffected: 6.6.37 , ≤ 6.6.* (semver)
Unaffected: 6.9.8 , ≤ 6.9.* (semver)
Unaffected: 6.10 , ≤ * (original_commit_for_fix)
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}



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Sightings

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Nomenclature

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