ALPINE-CVE-2021-40528

Source
https://security.alpinelinux.org/vuln/CVE-2021-40528
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2021-40528.json
JSON Data
https://api.test.osv.dev/v1/vulns/ALPINE-CVE-2021-40528
Upstream
Published
2021-09-06T19:15:07Z
Modified
2025-09-26T00:19:18.168468Z
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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.8.8-r1

Affected versions

1.*

1.4.3-r0
1.4.4-r0
1.4.4-r1
1.4.5-r0
1.4.5-r1
1.4.5-r2
1.4.6-r0
1.4.6-r1
1.4.6-r2
1.5.0-r0
1.5.1-r0
1.5.2-r0
1.5.3-r0
1.6.0-r0
1.6.1-r0
1.6.1-r1
1.6.2-r0
1.6.3-r0
1.6.4-r0
1.6.5-r0
1.7.0-r0
1.7.1-r0
1.7.2-r0
1.7.3-r0
1.7.5-r0
1.7.6-r0
1.7.7-r0
1.7.8-r0
1.8.0-r0
1.8.0-r1
1.8.1-r0
1.8.2-r0
1.8.3-r0
1.8.4-r0
1.8.4-r1
1.8.4-r2
1.8.5-r0
1.8.8-r0

Alpine:v3.12 / libgcrypt

Package

Name
libgcrypt
Purl
pkg:apk/alpine/libgcrypt?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.8.8-r1

Affected versions

1.*

1.4.3-r0
1.4.4-r0
1.4.4-r1
1.4.5-r0
1.4.5-r1
1.4.5-r2
1.4.6-r0
1.4.6-r1
1.4.6-r2
1.5.0-r0
1.5.1-r0
1.5.2-r0
1.5.3-r0
1.6.0-r0
1.6.1-r0
1.6.1-r1
1.6.2-r0
1.6.3-r0
1.6.4-r0
1.6.5-r0
1.7.0-r0
1.7.1-r0
1.7.2-r0
1.7.3-r0
1.7.5-r0
1.7.6-r0
1.7.7-r0
1.7.8-r0
1.8.0-r0
1.8.0-r1
1.8.1-r0
1.8.2-r0
1.8.3-r0
1.8.4-r0
1.8.4-r1
1.8.4-r2
1.8.5-r0
1.8.8-r0

Alpine:v3.13 / libgcrypt

Package

Name
libgcrypt
Purl
pkg:apk/alpine/libgcrypt?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.8.8-r1

Affected versions

1.*

1.4.3-r0
1.4.4-r0
1.4.4-r1
1.4.5-r0
1.4.5-r1
1.4.5-r2
1.4.6-r0
1.4.6-r1
1.4.6-r2
1.5.0-r0
1.5.1-r0
1.5.2-r0
1.5.3-r0
1.6.0-r0
1.6.1-r0
1.6.1-r1
1.6.2-r0
1.6.3-r0
1.6.4-r0
1.6.5-r0
1.7.0-r0
1.7.1-r0
1.7.2-r0
1.7.3-r0
1.7.5-r0
1.7.6-r0
1.7.7-r0
1.7.8-r0
1.8.0-r0
1.8.0-r1
1.8.1-r0
1.8.2-r0
1.8.3-r0
1.8.4-r0
1.8.4-r1
1.8.4-r2
1.8.5-r0
1.8.6-r0
1.8.7-r0
1.8.8-r0