ALPINE-CVE-2021-40528
- Source
- https://security.alpinelinux.org/vuln/CVE-2021-40528
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-40528.json
- JSON Data
- https://api.osv.dev/v1/vulns/ALPINE-CVE-2021-40528
- Upstream
- Published
- 2021-09-06T19:15:07Z
- Modified
- 2026-08-27T22:18:01Z
- Severity
-
- 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
- Summary
- [none]
- 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.
- References
Affected packages
Alpine:v3.11 / libgcrypt
Package
- Name
- libgcrypt
- Purl
- pkg:apk/alpine/libgcrypt?arch=source
Alpine:v3.12 / libgcrypt
Package
- Name
- libgcrypt
- Purl
- pkg:apk/alpine/libgcrypt?arch=source