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CVE-2018-12019

7.5 · HIGH

The signature verification routine in Enigmail before 2.0.7 interprets user ids as status/control messages and does not correctly keep track of the status of multiple signatures, which allows remot…

Published Jun 13, 2018CWE-347EPSS 2.14%

Overview

CVE-2018-12019 is a high-severity vulnerability. It was published on June 13, 2018 and has a CVSS 3.0 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

The signature verification routine in Enigmail before 2.0.7 interprets user ids as status/control messages and does not correctly keep track of the status of multiple signatures, which allows remote attackers to spoof arbitrary email signatures via public keys containing crafted primary user ids.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refopenwall.com/lists/oss-security/2018/06/13/10Refpacketstormsecurity.com/files/152703/Johnny-You-Are-Fired.htmlRefseclists.org/fulldisclosure/2019/Apr/38Refwww.openwall.com/lists/oss-security/2019/04/30/4GitHubgithub.com/RUB-NDS/Johnny-You-Are-FiredGitHubgithub.com/RUB-NDS/Johnny-You-Are-Fired/blob/master/paper/johnny-fired.pdfRefwww.enigmail.net/index.php/en/download/changelogRefopenwall.com/lists/oss-security/2018/06/13/10Refpacketstormsecurity.com/files/152703/Johnny-You-Are-Fired.htmlRefseclists.org/fulldisclosure/2019/Apr/38

How CyberStrike helps

Frequently asked questions

What is CVE-2018-12019?

CVE-2018-12019 is a high-severity vulnerability. It was published on June 13, 2018 and has a CVSS 3.0 base score of 7.5 (HIGH).

How severe is CVE-2018-12019?

This vulnerability has a CVSS 3.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2018-12019?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2018-12019?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2018-12019 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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