VULNERABILITY INTELLIGENCE

CVE-2019-8338

CVSS score5.9 MEDIUM
EPSS probability1.73%
CISA KEVNot currently listed
Published2019-05-16
Last modified2026-06-17
CVSS vectorCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

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.

Weakness classification

  • CWE-347: Improper Verification of Cryptographic Signature

Primary references