OESA-2021-1243

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Source

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1243

Import Source

https://repo.openeuler.org/security/data/osv/OESA-2021-1243.json

JSON Data

https://api.osv.dev/v1/vulns/OESA-2021-1243

Upstream

CVE-2021-33560

Published

2021-06-26T11:03:00Z

Modified

2025-09-03T06:17:26.210343Z

Summary

libgcrypt security update

Details

Libgcrypt is a general purpose cryptographic library originally based on code from GnuPG.

Security Fix(es):

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. (There is also an interoperability problem because the selection of the k integer value does not properly consider the differences between basic ElGamal encryption and generalized ElGamal encryption.) This, for example, affects use of ElGamal in OpenPGP.(CVE-2021-33560)

Database specific

{
    "severity": "High"
}

References

Affected packages

openEuler:20.03-LTS-SP1 / libgcrypt

Package

Name: libgcrypt
Purl: pkg:rpm/openEuler/libgcrypt&distro=openEuler-20.03-LTS-SP1

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.8.6-3.oe1

Ecosystem specific

{
    "noarch": [
        "libgcrypt-help-1.8.6-3.oe1.noarch.rpm"
    ],
    "aarch64": [
        "libgcrypt-devel-1.8.6-3.oe1.aarch64.rpm",
        "libgcrypt-1.8.6-3.oe1.aarch64.rpm",
        "libgcrypt-debuginfo-1.8.6-3.oe1.aarch64.rpm",
        "libgcrypt-debugsource-1.8.6-3.oe1.aarch64.rpm"
    ],
    "x86_64": [
        "libgcrypt-debuginfo-1.8.6-3.oe1.x86_64.rpm",
        "libgcrypt-debugsource-1.8.6-3.oe1.x86_64.rpm",
        "libgcrypt-1.8.6-3.oe1.x86_64.rpm",
        "libgcrypt-devel-1.8.6-3.oe1.x86_64.rpm"
    ],
    "src": [
        "libgcrypt-1.8.6-3.oe1.src.rpm"
    ]
}