Oracle Linux 8 : libgcrypt (ELSA-2022-5311)

medium Nessus Plugin ID 162680

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Synopsis

The remote Oracle Linux host is missing a security update.

Description

The remote Oracle Linux 8 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2022-5311 advisory.

- The ElGamal implementation in Libgcrypt before 1.9.4 allows plaintext recovery because, during interaction between two cryptographic libraries, a certain dangerous combination of the prime defined by the receiver's public key, the generator defined by the receiver's public key, and the sender's ephemeral exponents can lead to a cross-configuration attack against OpenPGP. (CVE-2021-40528)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected libgcrypt and / or libgcrypt-devel packages.

Plugin Details

Severity: Medium

ID: 162680

File Name: oraclelinux_ELSA-2022-5311.nasl

Version: 1.3

Type: local

Agent: unix

Family: Oracle Linux Local Security Checks

Published: 7/1/2022

Updated: 10/19/2023

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Low

Base Score: 2.6

Temporal Score: 2.1

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

CVSS Score Source: CVE-2021-40528

CVSS v3

Risk Factor: Medium

Base Score: 5.9

Temporal Score: 5.5

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

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

Vulnerability Information

CPE: cpe:/o:oracle:linux:8, p-cpe:/a:oracle:linux:libgcrypt, p-cpe:/a:oracle:linux:libgcrypt-devel

Required KB Items: Host/OracleLinux, Host/RedHat/release, Host/RedHat/rpm-list, Host/local_checks_enabled

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/1/2022

Vulnerability Publication Date: 9/6/2021

Reference Information

CVE: CVE-2021-40528

Detections

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