high
7.5
CWE
203
Advisory Published
Updated

CVE-2021-33560

First published: Tue Jun 08 2021(Updated: )

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.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
GnuPG Libgcrypt<1.8.8
GnuPG Libgcrypt>=1.9.0<1.9.3
Debian Debian Linux=9.0
Fedoraproject Fedora=33
Fedoraproject Fedora=34
Oracle Communications Cloud Native Core Binding Support Function=1.11.0
Oracle Communications Cloud Native Core Network Function Cloud Native Environment=1.9.0
Oracle Communications Cloud Native Core Network Function Cloud Native Environment=1.10.0
Oracle Communications Cloud Native Core Network Repository Function=1.14.0
Oracle Communications Cloud Native Core Network Repository Function=1.15.0
Oracle Communications Cloud Native Core Network Repository Function=1.15.1
Oracle Communications Cloud Native Core Network Slice Selection Function=1.8.0
Oracle Communications Cloud Native Core Service Communication Proxy=1.15.0
IBM QRadar SIEM<=7.5.0 GA
IBM QRadar SIEM<=7.4.3 GA - 7.4.3 FP4
IBM QRadar SIEM<=7.3.3 GA - 7.3.3 FP10

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Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the vulnerability ID for this issue?

    The vulnerability ID for this issue is CVE-2021-33560.

  • What is the severity of CVE-2021-33560?

    The severity of CVE-2021-33560 is medium with a score of 5.9.

  • Which software is affected by CVE-2021-33560?

    The IBM QRadar SIEM versions 7.5.0 GA, 7.4.3 GA - 7.4.3 FP4, and 7.3.3 GA - 7.3.3 FP10 are affected by CVE-2021-33560.

  • How can I fix CVE-2021-33560?

    You can fix CVE-2021-33560 by applying the appropriate patches provided by IBM for the affected IBM QRadar SIEM versions.

  • Where can I find more information about CVE-2021-33560?

    You can find more information about CVE-2021-33560 on IBM's X-Force Exchange and IBM's support website.

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