Bug 1591097 (CVE-2018-12019) - CVE-2018-12019 thunderbird-enigmail: Signature verification does not handle user ids correctly allowing attackers to spoof arbitrary email signatures
Summary: CVE-2018-12019 thunderbird-enigmail: Signature verification does not handle u...
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2018-12019
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard: impact=moderate,public=20180613,repor...
Depends On: 1591098 1591099
Blocks:
TreeView+ depends on / blocked
 
Reported: 2018-06-14 04:51 UTC by Sam Fowler
Modified: 2019-06-10 10:29 UTC (History)
1 user (show)

Fixed In Version: enigmail 2.0.7
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Clone Of:
Environment:
Last Closed: 2019-06-10 10:29:04 UTC


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Description Sam Fowler 2018-06-14 04:51:17 UTC
The signature verification routine in Enigmail 2.0.6.1 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.



External References:

https://neopg.io/blog/enigmail-signature-spoof/ 
http://seclists.org/oss-sec/2018/q2/187


Upstream Changelog:

https://www.enigmail.net/index.php/en/download/changelog#enig2.0.7

Comment 1 Sam Fowler 2018-06-14 04:51:40 UTC
Created thunderbird-enigmail tracking bugs for this issue:

Affects: epel-7 [bug 1591098]
Affects: fedora-all [bug 1591099]

Comment 2 Product Security DevOps Team 2019-06-10 10:29:04 UTC
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.


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