CVE-2019-14855

2020-03-20T00:00:00
ID UB:CVE-2019-14855
Type ubuntucve
Reporter ubuntu.com
Modified 2020-03-20T00:00:00

Description

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.

Bugs

  • <https://dev.gnupg.org/T4755>

Notes

Author| Note
---|---
mdeslaur | in master, gnupg disables SHA-1 signatures completely. In the 2.2 branch, it disables SHA-1 signatures after a certain date only.