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Test ID:1.3.6.1.4.1.25623.1.0.891405
Category:Debian Local Security Checks
Title:Debian LTS Advisory ([SECURITY] [DLA 1405-1] libgcrypt20 security update)
Summary:It was discovered that Libgcrypt is prone to a local side-channel attack;allowing recovery of ECDSA private keys.
Description:Summary:
It was discovered that Libgcrypt is prone to a local side-channel attack
allowing recovery of ECDSA private keys.

Vulnerability Insight:
libgcrypt contains cryptographic functions. Many important free
ciphers, hash algorithms and public key signing algorithms have been
implemented:

Affected Software/OS:
libgcrypt20 on Debian Linux

Solution:
For Debian 8 'Jessie', these problems have been fixed in version
1.6.3-2+deb8u5.

We recommend that you upgrade your libgcrypt20 packages.

CVSS Score:
1.9

CVSS Vector:
AV:L/AC:M/Au:N/C:P/I:N/A:N

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2018-0495
https://lists.debian.org/debian-lts-announce/2018/06/msg00013.html
https://dev.gnupg.org/T4011
https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=9010d1576e278a4274ad3f4aa15776c28f6ba965
https://lists.gnupg.org/pipermail/gnupg-announce/2018q2/000426.html
https://www.nccgroup.trust/us/our-research/technical-advisory-return-of-the-hidden-number-problem/
Debian Security Information: DSA-4231 (Google Search)
https://www.debian.org/security/2018/dsa-4231
https://usn.ubuntu.com/3689-1/
https://usn.ubuntu.com/3689-2/
https://usn.ubuntu.com/3692-1/
https://usn.ubuntu.com/3692-2/
http://www.securitytracker.com/id/1041144
http://www.securitytracker.com/id/1041147
CopyrightCopyright (c) 2018 Greenbone Networks GmbH http://greenbone.net

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