CVE-2020-15917

Upstream information

CVE-2020-15917 at MITRE

Description

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

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SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having critical severity.

CVSS v2 Scores

CVSS detail	National Vulnerability Database
Base Score	7.5
Vector	AV:N/AC:L/Au:N/C:P/I:P/A:P
Access Vector	Network
Access Complexity	Low
Authentication	None
Confidentiality Impact	Partial
Integrity Impact	Partial
Availability Impact	Partial

CVSS v3 Scores

CVSS detail	National Vulnerability Database
Base Score	9.8
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector	Network
Attack Complexity	Low
Privileges Required	None
User Interaction	None
Scope	Unchanged
Confidentiality Impact	High
Integrity Impact	High
Availability Impact	High
CVSSv3 Version	3.1

SUSE Bugzilla entry: 1174457 [RESOLVED / FIXED]

SUSE Security Advisories:

• openSUSE-SU-2020:1116-1, published Thu Dec 7 12:55:40 2023
• openSUSE-SU-2020:1139-1, published Thu Dec 7 12:55:40 2023
• openSUSE-SU-2020:1192-1, published Thu Dec 7 12:55:40 2023
• openSUSE-SU-2020:1269-1, published Thu Dec 7 12:55:40 2023
• openSUSE-SU-2020:1822-1, published Thu Dec 7 12:55:41 2023
• openSUSE-SU-2021:1045-1, published Fri Jul 16 03:39:54 2021

List of released packages

Product(s)	Fixed package version(s)	References
SUSE Package Hub 15 SP1	claws-mail >= 3.17.8-bp151.3.6.1 claws-mail-devel >= 3.17.8-bp151.3.6.1 claws-mail-lang >= 3.17.8-bp151.3.6.1	Patchnames: openSUSE-2020-1269 openSUSE-2020-1822
SUSE Package Hub 15 SP2	claws-mail >= 3.18.0-bp152.3.9.1 claws-mail-devel >= 3.18.0-bp152.3.9.1 claws-mail-lang >= 3.18.0-bp152.3.9.1	Patchnames: openSUSE-2020-1192 openSUSE-2020-1822 openSUSE-2021-1045
SUSE Package Hub 15 SP3	claws-mail >= 3.18.0-bp153.2.3.1 claws-mail-devel >= 3.18.0-bp153.2.3.1 claws-mail-lang >= 3.18.0-bp153.2.3.1	Patchnames: openSUSE-2021-1045
openSUSE Leap 15.1	claws-mail >= 3.17.8-lp151.2.6.1 claws-mail-devel >= 3.17.8-lp151.2.6.1 claws-mail-lang >= 3.17.8-lp151.2.6.1	Patchnames: openSUSE-2020-1116 openSUSE-2020-1822
openSUSE Leap 15.2	claws-mail >= 3.18.0-lp152.3.9.1 claws-mail-devel >= 3.18.0-lp152.3.9.1 claws-mail-lang >= 3.18.0-lp152.3.9.1	Patchnames: openSUSE-2020-1139 openSUSE-2020-1822 openSUSE-2021-1045
openSUSE Leap 15.3	claws-mail >= 3.18.0-bp153.2.3.1 claws-mail-devel >= 3.18.0-bp153.2.3.1 claws-mail-lang >= 3.18.0-bp153.2.3.1	Patchnames: openSUSE-2021-1045
openSUSE Tumbleweed	claws-mail >= 4.0.0-2.5 claws-mail-devel >= 4.0.0-2.5 claws-mail-lang >= 4.0.0-2.5	Patchnames: openSUSE-Tumbleweed-2024-10686

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SUSE Timeline for this CVE

CVE page created: Thu Jul 23 22:40:31 2020
CVE page last modified: Sat Nov 1 22:03:12 2025