DEBIAN-CVE-2021-33560

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Source
https://security-tracker.debian.org/tracker/CVE-2021-33560
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-33560.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2021-33560
Upstream
Published
2021-06-08T11:15:07Z
Modified
2026-09-01T20:04:29Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
Summary
[none]
Details

Libgcrypt before 1.8.8 and 1.9.x before 1.9.3 mishandles ElGamal encryption because it lacks exponent blinding to address a side-channel attack against mpi_powm, and the window size is not chosen appropriately. This, for example, affects use of ElGamal in OpenPGP.

References

Affected packages

Debian:12 / libgcrypt20

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.9.4-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-33560.json"

Debian:13 / libgcrypt20

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.9.4-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-33560.json"

Debian:14 / libgcrypt20

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.9.4-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-33560.json"