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

CVE-2020-15917

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

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

CRITICAL · CVSS 9.8 EPSS 0.02222
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
▤

Affected Products & Versions

4
claws-mail< 3.17.6
fedoraproject fedoraall versions
opensuse backports sleall versions
opensuse leapall versions
▣

Scoring & Timeline

9.8
CRITICAL · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD23 Jul 2020 · 07:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
⚑

Vendor Advisories

7
suse-csafopenSUSE-SU-2024:10686-1
suse-csafopenSUSE-SU-2021:1045-1
suse-csafopenSUSE-SU-2020:1822-1
suse-csafopenSUSE-SU-2020:1269-1
suse-csafopenSUSE-SU-2020:1192-1
🔗

References & Sources

10
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00090.htmlMailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00002.htmlBroken LinkMailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00060.htmlBroken LinkMailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00051.htmlBroken LinkMailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00013.htmlBroken LinkMailing ListThird Party Advisory
https://git.claws-mail.org/?p=claws.git
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