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GLSA-201408-10 : Libgcrypt: Side-channel attack

low Nessus Plugin ID 77454

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Synopsis

The remote Gentoo host is missing one or more security-related patches.

Description

The remote host is affected by the vulnerability described in GLSA-201408-10 (Libgcrypt: Side-channel attack)

 A vulnerability in the implementation of ElGamal decryption procedures of Libgcrypt leaks information to various side-channels.
 Impact :

 A physical side-channel attack allows a remote attacker to fully extract decryption keys during the decryption of a chosen ciphertext.
 Workaround :

 There is no known workaround at this time.

Solution

All Libgcrypt users should upgrade to the latest version:
 # emerge --sync # emerge --ask --oneshot --verbose '>=dev-libs/libgcrypt-1.5.4'

See Also

https://security.gentoo.org/glsa/201408-10

Plugin Details

Severity: Low

ID: 77454

File Name: gentoo_GLSA-201408-10.nasl

Version: 1.8

Type: local

Published: 8/30/2014

Updated: 1/6/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.6

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

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:libgcrypt, cpe:/o:gentoo:linux

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Exploit Ease: No known exploits are available

Patch Publication Date: 8/29/2014

Reference Information

CVE: CVE-2014-5270

BID: 69164

GLSA: 201408-10