CVE-2019-8338

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.

Category

5.9
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.34%
Third-Party Advisory packetstormsecurity.com Third-Party Advisory seclists.org Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory openwall.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/Airmail/AirmailPlugIn-Framework/commits/master third party advisory patch
http://seclists.org/fulldisclosure/2019/Apr/38 third party advisory mailing list
http://packetstormsecurity.com/files/152703/Johnny-You-Are-Fired.html vdb entry third party advisory
https://www.openwall.com/lists/oss-security/2019/04/30/4 third party advisory mailing list
https://github.com/RUB-NDS/Johnny-You-Are-Fired third party advisory
https://github.com/RUB-NDS/Johnny-You-Are-Fired/blob/master/paper/johnny-fired.pdf third party advisory

Frequently Asked Questions

What is the severity of CVE-2019-8338?
CVE-2019-8338 has been scored as a medium severity vulnerability.
How to fix CVE-2019-8338?
To fix CVE-2019-8338, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-8338 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2019-8338 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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