CVE-2021-40528

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Source
https://nvd.nist.gov/vuln/detail/CVE-2021-40528
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-40528.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-40528
Related
Published
2021-09-06T19:15:07Z
Modified
2024-09-18T03:16:03.377421Z
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

Debian:11 / libgcrypt20

Package

Name
libgcrypt20
Purl
pkg:deb/debian/libgcrypt20?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.8.7-6

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:12 / libgcrypt20

Package

Name
libgcrypt20
Purl
pkg:deb/debian/libgcrypt20?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.8.7-6

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:13 / libgcrypt20

Package

Name
libgcrypt20
Purl
pkg:deb/debian/libgcrypt20?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.8.7-6

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Git / github.com/gpg/libgcrypt

Affected ranges

Type
GIT
Repo
https://github.com/gpg/libgcrypt
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
05422ca24a0391dad2a0b7790a904ce348819c10

Affected versions

Other

DEVEL-BRANCH-1-1
V-0-2-8
V0-0-0
V0-1-0
V0-2-0
V0-2-10
V0-2-15
V0-2-17
V0-2-18
V0-2-19
V0-2-6
V0-3-0
V0-3-1
V0-3-2
V0-3-3
V0-3-4
V0-3-5
V0-4-0
V0-4-1
V0-4-2
V0-4-3
V0-4-4
V0-4-5
V0-9-0
V0-9-1
V0-9-10
V0-9-11
V0-9-2
V0-9-3
V0-9-4
V0-9-5
V0-9-6
V0-9-7
V0-9-8
V0-9-9
V1-0-0
V1-0-1
V1-0-1-ePit-1
V1-0-2
V1-0-3
V1-0-4
V1-1-0
V1-1-10
V1-1-11
V1-1-12
V1-1-2
V1-1-3
V1-1-4
V1-1-42
V1-1-43
V1-1-44
V1-1-5
V1-1-6
V1-1-7
V1-1-8
V1-1-9
V1-1-90
V1-1-91
V1-1-92
V1-1-93
V1-1-94
V1-2-0
V1-2-1
ecc-integration-done
last-gpl-version
marcus-after-thread-cbs
marcus-before-thread-cbs
now-less-freedom-protected
post-nuke-of-trailing-ws

libgcrypt-1.*

libgcrypt-1.10-base
libgcrypt-1.3.0
libgcrypt-1.3.1
libgcrypt-1.3.2
libgcrypt-1.4.0
libgcrypt-1.4.1
libgcrypt-1.4.1rc1
libgcrypt-1.4.2
libgcrypt-1.4.2rc1
libgcrypt-1.4.2rc2
libgcrypt-1.4.3
libgcrypt-1.4.4
libgcrypt-1.5.0
libgcrypt-1.5.0-beta1
libgcrypt-1.6.0
libgcrypt-1.7.0
libgcrypt-1.7.1
libgcrypt-1.7.2
libgcrypt-1.7.3
libgcrypt-1.8.0
libgcrypt-1.8.1
libgcrypt-1.9-base
libgcrypt-1.9.0
libgcrypt-1.9.1
libgcrypt-1.9.2
libgcrypt-1.9.3