HOME VULNERABILITIESCVE-2018-12019

HIGH

CVE-2018-12019

CWE-347Published: June 13, 2018· Updated: Jun 17, 2026

7.5

CVSS v3.1

Official 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.

Technical Analysis

CVE-2018-12019 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in full integrity compromise (data manipulation), with a CVSS base score of 7.5.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges Req.None

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityHigh

AvailabilityNone

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected Vendors & Products

enigmail1 product(s)

enigmail

Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time

Offensive Security exploit database

GitHub PoC Search

Community PoC repositories

Rapid7 / Metasploit

Metasploit module search

Security advisories & exploits

Official NIST entry

CVE Program entry

External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttp://openwall.com/lists/oss-security/2018/06/13/10

ADVISORYhttp://packetstormsecurity.com/files/152703/Johnny-You-Are-Fired.html

ADVISORYhttp://seclists.org/fulldisclosure/2019/Apr/38

ADVISORYhttp://www.openwall.com/lists/oss-security/2019/04/30/4

ADVISORYhttps://www.enigmail.net/index.php/en/download/changelog

ADVISORYhttp://openwall.com/lists/oss-security/2018/06/13/10

ADVISORYhttp://packetstormsecurity.com/files/152703/Johnny-You-Are-Fired.html

ADVISORYhttp://seclists.org/fulldisclosure/2019/Apr/38

ADVISORYhttp://www.openwall.com/lists/oss-security/2019/04/30/4

ADVISORYhttps://www.enigmail.net/index.php/en/download/changelog

All References (14)

→

http://openwall.com/lists/oss-security/2018/06/13/10Mailing List · Third Party Advisory

→

http://packetstormsecurity.com/files/152703/Johnny-You-Are-Fired.htmlThird Party Advisory · VDB Entry

→

http://seclists.org/fulldisclosure/2019/Apr/38Mailing List · Third Party Advisory

→

http://www.openwall.com/lists/oss-security/2019/04/30/4Mailing List · Third Party Advisory

→

https://github.com/RUB-NDS/Johnny-You-Are-Fired

→

https://github.com/RUB-NDS/Johnny-You-Are-Fired/blob/master/paper/johnny-fired.pdf

→

https://www.enigmail.net/index.php/en/download/changelogExploit · Vendor Advisory

→

http://openwall.com/lists/oss-security/2018/06/13/10Mailing List · Third Party Advisory

→

http://packetstormsecurity.com/files/152703/Johnny-You-Are-Fired.htmlThird Party Advisory · VDB Entry

→

http://seclists.org/fulldisclosure/2019/Apr/38Mailing List · Third Party Advisory

→

http://www.openwall.com/lists/oss-security/2019/04/30/4Mailing List · Third Party Advisory

→

https://github.com/RUB-NDS/Johnny-You-Are-Fired

→

https://github.com/RUB-NDS/Johnny-You-Are-Fired/blob/master/paper/johnny-fired.pdf

→

https://www.enigmail.net/index.php/en/download/changelogExploit · Vendor Advisory

Quick Facts

CVE IDCVE-2018-12019

CVSS Score7.5 / 10

SeverityHIGH

WeaknessCWE-347

CISA KEVNo

Affected1 vendor(s)

PublishedJun 13, 2018

Related CVEs (CWE-347)

CVE-2019-1010161

Recommended Actions

→Apply vendor patches immediately
→Monitor CVE-2018-12019 in threat intel feeds
→Review IDS/IPS signatures for exploitation attempts

Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.

← All Vulnerabilities·Search for CVE-2018-12019·NVD