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Alpine: libgcrypt: security update to 1.9.4-r0

critical Tenable Cloud Security Plugin ID 405175

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - 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. (CVE-2021-33560)

See Also

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

Plugin Details

Severity: Critical

ID: 405175

Version: Revision 1.31

Type: Local

Published: 10/31/2023

Updated: 1/21/2026

Supported Sensors: Agentless Assessment

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.18

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N

CVSS Score Source: CVE-2021-33560

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: Critical

Base Score: 9.3

Threat Score: 8.1

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 6/8/2021

Reference Information

CVE: CVE-2021-33560