DEBIAN-CVE-2020-15917

Advisory lineage Upstream: 1 Downstream: 0
Upstream
CVE-2020-15917
Published: 23 Jul 2020, 19:15
Last modified:28 Apr 2026, 20:21

Vulnerability Summary

Overall Risk (default)
high
70/100
CVSS Score
9.8 CRITICAL
3.1 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

23 Jul 2020, 19:15
Published
Vulnerability first disclosed
28 Apr 2026, 20:21
Last Modified
Vulnerability information updated

Description

common/session.c in Claws Mail before 3.17.6 has a protocol violation because suffix data after STARTTLS is mishandled.

CVSS Metrics

  • v3.1•CRITICAL•Score: 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Systems

  • debian•claws-mail

    < 3.17.6-1 | < 3.17.6-1 | < 3.17.6-1 | < 3.17.6-1

References (1)