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.

This update for enigmail fixes vulnerabilities that allowed spoofing of e-mail signatures :

  - CVE-2018-12019: signature spoofing via specially crafted     OpenPGP user IDs (boo#1097525)

  - CVE-2018-12020: signature spoofing via diagnostic output     of the original file name in GnuPG verbose mode     (boo#1096745) This mitigation prevents CVE-2018-12020     from being exploited even if GnuPG is not patched.

Security fix CVE-2018-12019

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Severity
123195	openSUSE Security Update : enigmail (openSUSE-2019-477)	Nessus	SuSE Local Security Checks	high
120669	Fedora 28 : thunderbird-enigmail (2018-a4bb79ea75)	Nessus	Fedora Local Security Checks	high
110674	Fedora 27 : thunderbird-enigmail (2018-fd67c19256)	Nessus	Fedora Local Security Checks	high
110586	openSUSE Security Update : enigmail (openSUSE-2018-630)	Nessus	SuSE Local Security Checks	high

Detections

Analytics

CVE-2018-12019

high

Tenable Plugins

high

high

high

high