CVE-2019-14855 — Vulnetix

CVE-2019-14855 PUBLISHED

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.

EPSS 0.38% · 59.8th percentile

Risk Scores

EPSS Score

0.38%

59.8th percentile

Affected Products

Vendor	Product	Versions
Ubuntu:24.04:LTS	gnupg1	1.4.23-1.1build4, 1.4.23-1.1build2, 1.4.23-2
Ubuntu:25.10	gnupg1	1.4.23-3, 0
Ubuntu:20.04:LTS	gnupg1	1.4.23-1, 0
Ubuntu:Pro:16.04:LTS	gnupg	1.4.20-1ubuntu3.1, 1.4.20-1ubuntu3.3+esm3, 1.4.20-1ubuntu3.3
Ubuntu:18.04:LTS	gnupg1	1.4.22-3ubuntu2, 1.4.22-3ubuntu1, 1.4.22-1ubuntu1
Ubuntu:Pro:14.04:LTS	gnupg	1.4.16-1ubuntu2.6, 0, 1.4.14-1ubuntu2
Ubuntu:Pro:16.04:LTS	gnupg2	2.1.11-6ubuntu2.1+esm3, ,
Ubuntu:18.04:LTS	gnupg2	2.2.4-1ubuntu1.1, 2.2.4-1ubuntu1.2, 2.2.4-1ubuntu1
Ubuntu:22.04:LTS	gnupg1	0, 1.4.23-1.1build1

Exploit Intelligence

USN-4516-1 (circl)
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14855 (circl)
https://lists.gnupg.org/pipermail/gnupg-announce/2019q4/000442.html (circl)
https://dev.gnupg.org/T4755 (circl)
https://rwc.iacr.org/2020/slides/Leurent.pdf (nist-nvd)

Timeline

Mar 20, 2020 CVE Published
Apr 14, 2021 EPSS Score
Jun 23, 2021 EPSS Score
Aug 24, 2021 EPSS Score
Oct 26, 2021 EPSS Score
Jan 6, 2022 EPSS Score
Feb 4, 2022 EPSS Score
Feb 28, 2022 EPSS Score
Apr 1, 2022 EPSS Score
May 1, 2022 EPSS Score
Jul 3, 2022 EPSS Score
Sep 4, 2022 EPSS Score

References

https://ubuntu.com/security/CVE-2019-14855 third-party-advisory
https://eprint.iacr.org/2020/014.pdf third-party-advisory
https://ubuntu.com/security/notices/USN-4516-1 vendor-advisory
https://www.cve.org/CVERecord?id=CVE-2019-14855 third-party-advisory

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