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CVE PROGRAM SOURCE RECORDUnscored

CVE-2024-42098

crypto: ecdh - explicitly zeroize private_key

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Status
Published
Published
Updated
Assigning organization
Linux

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 3c4b23901a0c766879dff680cd6bdab47bcdbbd2 to < 39173b04abda87872b43c331468a4a14f8f05ce8affected
  • 3c4b23901a0c766879dff680cd6bdab47bcdbbd2 to < fd7ef325911eba1b7191b83cb580463242f2090daffected
  • 3c4b23901a0c766879dff680cd6bdab47bcdbbd2 to < 80575b252ab0358b7e93895b2a510beb3cb3f975affected
  • 3c4b23901a0c766879dff680cd6bdab47bcdbbd2 to < d96187eb8e59b572a8e6a68b6a9837a867ea29dfaffected
  • 3c4b23901a0c766879dff680cd6bdab47bcdbbd2 to < 73e5984e540a76a2ee1868b91590c922da8c24c9affected

Linux Linux

Default version status: affected

  • 4.8affected
  • 0 to < 4.8unaffected
  • 5.15.162 to ≤ 5.15.*unaffected
  • 6.1.97 to ≤ 6.1.*unaffected
  • 6.6.37 to ≤ 6.6.*unaffected
  • 6.9.8 to ≤ 6.9.*unaffected
  • 6.10 to ≤ *unaffected

References