Vulnerability Description
In Roundcube Webmail before 1.3.10, an attacker in possession of S/MIME or PGP encrypted emails can wrap them as sub-parts within a crafted multipart email. The encrypted part(s) can further be hidden using HTML/CSS or ASCII newline characters. This modified multipart email can be re-sent by the attacker to the intended receiver. If the receiver replies to this (benign looking) email, they unknowingly leak the plaintext of the encrypted message part(s) back to the attacker.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Roundcube | Webmail | < 1.3.10 |
| Fedoraproject | Fedora | 29 |
| Opensuse | Backports Sle | 15.0 |
| Opensuse | Leap | 15.1 |
Related Weaknesses (CWE)
References
- http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00083.htmlMailing ListThird Party Advisory
- https://github.com/roundcube/roundcubemail/issues/6638ExploitIssue TrackingThird Party Advisory
- https://github.com/roundcube/roundcubemail/releases/tag/1.3.10Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00083.htmlMailing ListThird Party Advisory
- https://github.com/roundcube/roundcubemail/issues/6638ExploitIssue TrackingThird Party Advisory
- https://github.com/roundcube/roundcubemail/releases/tag/1.3.10Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
FAQ
What is CVE-2019-10740?
CVE-2019-10740 is a vulnerability with a CVSS score of 4.3 (MEDIUM). In Roundcube Webmail before 1.3.10, an attacker in possession of S/MIME or PGP encrypted emails can wrap them as sub-parts within a crafted multipart email. The encrypted part(s) can further be hidden...
How severe is CVE-2019-10740?
CVE-2019-10740 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2019-10740?
Check the references section above for vendor advisories and patch information. Affected products include: Roundcube Webmail, Fedoraproject Fedora, Opensuse Backports Sle, Opensuse Leap.