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CVE-2019-8338

Published: May 16, 2019

Modified: Aug 4, 2024

PUBLISHED

Description

The signature verification routine in the Airmail GPG-PGP Plugin, versions 1.0 (9) and earlier, does not verify the status of the signature at all, which allows remote attackers to spoof arbitrary email signatures by crafting a signed email with an invalid signature. Also, it does not verify the validity of the signing key, which allows remote attackers to spoof arbitrary email signatures by crafting a key with a fake user ID (email address) and injecting it into the user's keyring.

Vendor	Product	Versions
n/a	n/a	affected `n/a`

References

https://github.com/Airmail/AirmailPlugIn-Framework/commits/master

x_refsource_MISC

20190430 OpenPGP and S/MIME signature forgery attacks in multiple email clients

mailing-list

x_refsource_FULLDISC

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

x_refsource_MISC

[oss-security] 20190430 Spoofing OpenPGP and S/MIME Signatures in Emails (multiple clients)

mailing-list

x_refsource_MLIST

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

x_refsource_MISC

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

x_refsource_MISC

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