crypto: ecdh - explicitly zeroize private_key (Linux Linux)

CVE-2024-42098
MEDIUM 5.5

En bref

Source
NVD
EPSS
EPSS 0.21 % · centile 11 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Modified

Description

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.

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · nvd@nist.gov (Primary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected 3c4b23901a0c766879dff680cd6bdab47bcdbbd2 < 39173b04abda87872b43c331468a4a14f8f05ce8 ; affected 3c4b23901a0c766879dff680cd6bdab47bcdbbd2 < fd7ef325911eba1b7191b83cb580463242f2090d ; affected 3c4b23901a0c766879dff680cd6bdab47bcdbbd2 < 80575b252ab0358b7e93895b2a510beb3cb3f975 ; affected 3c4b23901a0c766879dff680cd6bdab47bcdbbd2 < d96187eb8e59b572a8e6a68b6a9837a867ea29df ; affected 3c4b23901a0c766879dff680cd6bdab47bcdbbd2 < 73e5984e540a76a2ee1868b91590c922da8c24c9
Linux · Linuxaffected 4.8 ; unaffected 0 < 4.8 ; unaffected 5.15.162 ≤ 5.15.* ; unaffected 6.1.97 ≤ 6.1.* ; unaffected 6.6.37 ≤ 6.6.* ; unaffected 6.9.8 ≤ 6.9.*

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD