GHSA-4794-RJC7-HPW2
Vulnerability from github – Published: 2024-07-29 18:30 – Updated: 2025-11-04 00:31In 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": [],
"aliases": [
"CVE-2024-42098"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-07-29T18:15:12Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: ecdh - explicitly zeroize private_key\n\nprivate_key is overwritten with the key parameter passed in by the\ncaller (if present), or alternatively a newly generated private key.\nHowever, it is possible that the caller provides a key (or the newly\ngenerated key) which is shorter than the previous key. In that\nscenario, some key material from the previous key would not be\noverwritten. The easiest solution is to explicitly zeroize the entire\nprivate_key array first.\n\nNote that this patch slightly changes the behavior of this function:\npreviously, if the ecc_gen_privkey failed, the old private_key would\nremain. Now, the private_key is always zeroized. This behavior is\nconsistent with the case where params.key is set and ecc_is_key_valid\nfails.",
"id": "GHSA-4794-rjc7-hpw2",
"modified": "2025-11-04T00:31:05Z",
"published": "2024-07-29T18:30:44Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-42098"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/39173b04abda87872b43c331468a4a14f8f05ce8"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/73e5984e540a76a2ee1868b91590c922da8c24c9"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/80575b252ab0358b7e93895b2a510beb3cb3f975"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d96187eb8e59b572a8e6a68b6a9837a867ea29df"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/fd7ef325911eba1b7191b83cb580463242f2090d"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
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- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.