Advisories » MGASA-2018-0306

Updated libcrypt packages fix a security vulnerability

Publication date: 01 Jul 2018
Modification date: 01 Jul 2018
Type: security
Affected Mageia releases : 5
CVE: CVE-2018-0495

Description

Updated libgcrypt packages fix security vulnerability:

When libgcrypt uses the private key to create a signature, such as for a TLS or
SSH connection, it inadvertently leaks information through memory caches. An
unprivileged attacker running on the same machine can collect the information
from a few thousand signatures and recover the value of the private ECDSA or
DSA key (CVE-2018-0495).
                

References

• https://bugs.mageia.org/show_bug.cgi?id=23210
• 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/
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-0495

SRPMS

5/core

• libgcrypt-1.5.4-5.5.mga5