Use of a broken or risky cryptographic algorithm in GnuPG - CVE-2019-14855
Published: March 20, 2020 / Updated: July 28, 2020
Vulnerability identifier: #VU31993
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2019-14855
CWE-ID: CWE-327
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: GNU
Affected software:
GnuPG
GnuPG
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.
A flaw was found in the way certificate signatures could be forged using collisions found in the SHA-1 algorithm. An attacker could use this weakness to create forged certificate signatures. This issue affects GnuPG versions before 2.2.18.
How to mitigate CVE-2019-14855
Install update from vendor's website.