Cleartext transmission of sensitive information in thunderbird (Alpine package)
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2020-12398 |
| CWE-ID | CWE-319 |
| Exploitation vector | Network |
| Public exploit | Public exploit code for vulnerability #1 is available. |
| Vulnerable software Subscribe |
thunderbird (Alpine package) Operating systems & Components / Operating system package or component |
| Vendor | Alpine Linux Development Team |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Cleartext transmission of sensitive information
EUVDB-ID: #VU28569
Risk: Medium
CVSSv3.1: 4.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C]
CVE-ID: CVE-2020-12398
CWE-ID:
CWE-319 - Cleartext Transmission of Sensitive Information
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists in STARTTLS implementation for an IMAP, when the server sends a PREAUTH response. In this case Thunderbird will continue with an unencrypted connection, causing email data to be sent without protection.
MitigationInstall update from vendor's website.
Vulnerable software versionsthunderbird (Alpine package): 68.8.1-r0
External linkshttp://git.alpinelinux.org/aports/commit/?id=aadba671901181be240a1d151a9f3a04f2ce3ca5
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.
