CVE-2019-14855

Public Exploit

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.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.35%
Vendor Advisory ubuntu.com Vendor Advisory gnupg.org Vendor Advisory gnupg.org
Affected: Red Hat gnupg2
Published at:
Updated at:

References

Link Tags
https://usn.ubuntu.com/4516-1/ third party advisory vendor advisory
https://rwc.iacr.org/2020/slides/Leurent.pdf third party advisory exploit
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14855 issue tracking third party advisory
https://lists.gnupg.org/pipermail/gnupg-announce/2019q4/000442.html mailing list release notes vendor advisory
https://dev.gnupg.org/T4755 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2019-14855?
CVE-2019-14855 has been scored as a high severity vulnerability.
How to fix CVE-2019-14855?
To fix CVE-2019-14855, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-14855 being actively exploited in the wild?
It is possible that CVE-2019-14855 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2019-14855?
CVE-2019-14855 affects Red Hat gnupg2.
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