Home > Vulnerability Database > CVE-2021-33560

Mend.io Vulnerability Database

CVE-2021-33560

Date: June 7, 2021

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.

Language: C

Severity Score

7.5

Related Resources (20)

Url: https://dev.gnupg.org/T5328

Url: https://lists.debian.org/debian-lts-announce/2021/06/msg00021.html

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BKKTOIGFW2SGN3DO2UHHVZ7MJSYN4AAB/

Url: https://security.alpinelinux.org/vuln/CVE-2021-33560

Url: https://nvd.nist.gov/vuln/detail/CVE-2021-33560

Url: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R7OAPCUGPF3VLA7QAJUQSL255D4ITVTL/

Url: https://dev.gnupg.org/T5305

Url: https://access.redhat.com/security/cve/CVE-2021-33560

Url: https://people.canonical.com/~ubuntu-security/cve/CVE-2021-33560

Url: https://dev.gnupg.org/rCe8b7f10be275bcedb5fc05ed4837a89bfd605c61

Url: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BKKTOIGFW2SGN3DO2UHHVZ7MJSYN4AAB/

Url: https://dev.gnupg.org/T5466

Url: https://security-tracker.debian.org/tracker/CVE-2021-33560

Url: https://www.oracle.com/security-alerts/cpujan2022.html

Url: https://www.oracle.com/security-alerts/cpuapr2022.html

Url: https://www.oracle.com/security-alerts/cpujul2022.html

Url: https://security.gentoo.org/glsa/202210-13

Url: https://www.oracle.com/security-alerts/cpuoct2021.html

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/R7OAPCUGPF3VLA7QAJUQSL255D4ITVTL/

Url: https://www.mend.io/vulnerability-database/CVE-2021-33560

Severity Score

7.5

Weakness Type (CWE)

Observable Discrepancy

CWE-203

Missing Cryptographic Step

CWE-325

CVSS v3.1

Base Score:	7.5
Attack Vector (AV):	NETWORK
Attack Complexity (AC):	LOW
Privileges Required (PR):	NONE
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	HIGH
Integrity (I):	NONE
Availability (A):	NONE

CVSS v2

Base Score:	5.0
Access Vector (AV):	NETWORK
Access Complexity (AC):	LOW
Authentication (AU):	NONE
Confidentiality (C):	PARTIAL
Integrity (I):	NONE
Availability (A):	NONE
Additional information:

Mend.io Vulnerability Database

We found results for “”

CVE-2021-33560

Date: June 7, 2021

Language: C

Severity Score

Related Resources (20)

Severity Score

Weakness Type (CWE)

CVSS v3.1

CVSS v2

Do you need more information?