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.

INFO

Published Date :

March 20, 2020, 4:15 p.m.

Last Modified :

Nov. 8, 2022, 2:28 a.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

3.9
Public PoC/Exploit Available at Github

CVE-2019-14855 has a 3 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2019-14855 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Canonical ubuntu_linux
1 Fedoraproject fedora
1 Gnupg gnupg
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2019-14855.

URL Resource
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14855 Issue Tracking Third Party Advisory
https://dev.gnupg.org/T4755 Vendor Advisory
https://lists.gnupg.org/pipermail/gnupg-announce/2019q4/000442.html Mailing List Release Notes Vendor Advisory
https://rwc.iacr.org/2020/slides/Leurent.pdf Exploit Third Party Advisory
https://usn.ubuntu.com/4516-1/ Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

A command line tool which provides an alternative interface to snyk test

snyk

Makefile Dockerfile Crystal Open Policy Agent

Updated: 2 years, 9 months ago
4 stars 3 fork 3 watcher
Born at : Aug. 31, 2020, 8:31 a.m. This repo has been linked 82 different CVEs too.

A history of PGP-related vulnerabilities

Updated: 2 months, 3 weeks ago
21 stars 4 fork 4 watcher
Born at : May 15, 2020, 9:42 a.m. This repo has been linked 15 different CVEs too.

Chosen-Prefix Collision Attack Against SHA-1 Hash Function

CSS HTML

Updated: 2 years ago
17 stars 7 fork 7 watcher
Born at : Dec. 13, 2019, 5:41 p.m. This repo has been linked 1 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2019-14855 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2019-14855 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Modified Analysis by [email protected]

    Nov. 08, 2022

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Oct. 07, 2022

    Action Type Old Value New Value
    Removed CWE Red Hat, Inc. CWE-327
    Added CWE Red Hat, Inc. CWE-326
    Removed CWE Reason CWE-327 / More specific CWE option available
  • Modified Analysis by [email protected]

    Oct. 29, 2021

    Action Type Old Value New Value
    Changed Reference Type https://usn.ubuntu.com/4516-1/ No Types Assigned https://usn.ubuntu.com/4516-1/ Third Party Advisory
    Removed CWE NIST CWE-327
    Added CWE NIST CWE-326
    Added CPE Configuration OR *cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
  • CVE Modified by [email protected]

    Sep. 22, 2020

    Action Type Old Value New Value
    Added Reference https://usn.ubuntu.com/4516-1/ [No Types Assigned]
  • Initial Analysis by [email protected]

    Mar. 24, 2020

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:N/A:N)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
    Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14855 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14855 Issue Tracking, Third Party Advisory
    Changed Reference Type https://dev.gnupg.org/T4755 No Types Assigned https://dev.gnupg.org/T4755 Vendor Advisory
    Changed Reference Type https://lists.gnupg.org/pipermail/gnupg-announce/2019q4/000442.html No Types Assigned https://lists.gnupg.org/pipermail/gnupg-announce/2019q4/000442.html Mailing List, Release Notes, Vendor Advisory
    Changed Reference Type https://rwc.iacr.org/2020/slides/Leurent.pdf No Types Assigned https://rwc.iacr.org/2020/slides/Leurent.pdf Exploit, Third Party Advisory
    Added CWE NIST CWE-327
    Added CPE Configuration OR *cpe:2.3:a:gnupg:gnupg:*:*:*:*:*:*:*:* versions up to (excluding) 2.2.18
    Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2019-14855 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2019-14855 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.23 }} 0.00%

score

0.59289

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability