Risk | Medium |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2019-14855 |
CWE-ID | CWE-327 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software Subscribe |
GnuPG Client/Desktop applications / Encryption software |
Vendor | GNU |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
EUVDB-ID: #VU31993
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2019-14855
CWE-ID:
CWE-327 - Use of a Broken or Risky Cryptographic Algorithm
Exploit availability: No
DescriptionThe 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.
MitigationInstall update from vendor's website.
Vulnerable software versionsGnuPG: 2.2.1 - 2.2.17
External linkshttp://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14855
http://dev.gnupg.org/T4755
http://lists.gnupg.org/pipermail/gnupg-announce/2019q4/000442.html
http://rwc.iacr.org/2020/slides/Leurent.pdf
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.