ghsa-8m2v-68m9-q2c7
Vulnerability from github
Published
2022-05-24 19:13
Modified
2022-10-31 12:00
Severity ?
Details
The ElGamal implementation in Libgcrypt before 1.9.4 allows plaintext recovery because, during interaction between two cryptographic libraries, a certain dangerous combination of the prime defined by the receiver's public key, the generator defined by the receiver's public key, and the sender's ephemeral exponents can lead to a cross-configuration attack against OpenPGP.
{ "affected": [], "aliases": [ "CVE-2021-40528" ], "database_specific": { "cwe_ids": [ "CWE-327" ], "github_reviewed": false, "github_reviewed_at": null, "nvd_published_at": "2021-09-06T19:15:00Z", "severity": "MODERATE" }, "details": "The ElGamal implementation in Libgcrypt before 1.9.4 allows plaintext recovery because, during interaction between two cryptographic libraries, a certain dangerous combination of the prime defined by the receiver\u0027s public key, the generator defined by the receiver\u0027s public key, and the sender\u0027s ephemeral exponents can lead to a cross-configuration attack against OpenPGP.", "id": "GHSA-8m2v-68m9-q2c7", "modified": "2022-10-31T12:00:21Z", "published": "2022-05-24T19:13:02Z", "references": [ { "type": "ADVISORY", "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-40528" }, { "type": "WEB", "url": "https://eprint.iacr.org/2021/923" }, { "type": "WEB", "url": "https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=3462280f2e23e16adf3ed5176e0f2413d8861320" }, { "type": "WEB", "url": "https://ibm.github.io/system-security-research-updates/2021/07/20/insecurity-elgamal-pt1" }, { "type": "WEB", "url": "https://ibm.github.io/system-security-research-updates/2021/09/06/insecurity-elgamal-pt2" }, { "type": "WEB", "url": "https://security.gentoo.org/glsa/202210-13" } ], "schema_version": "1.4.0", "severity": [ { "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N", "type": "CVSS_V3" } ] }
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Sightings
Author | Source | Type | Date |
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Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.