Vulnerability Description
common/session.c in Claws Mail before 3.17.6 has a protocol violation because suffix data after STARTTLS is mishandled.
CVSS Score
9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Claws-Mail | Claws-Mail | < 3.17.6 |
| Fedoraproject | Fedora | 31 |
| Opensuse | Backports Sle | 15.0 |
| Opensuse | Leap | 15.1 |
References
- 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%3Ba=blob%3Bf=RELEASE_NOTES
- https://git.claws-mail.org/?p=claws.git%3Ba=commit%3Bh=fcc25329049b6f9bd8d890f11
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://security.gentoo.org/glsa/202007-56Third Party Advisory
- 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
FAQ
What is CVE-2020-15917?
CVE-2020-15917 is a vulnerability with a CVSS score of 9.8 (CRITICAL). common/session.c in Claws Mail before 3.17.6 has a protocol violation because suffix data after STARTTLS is mishandled.
How severe is CVE-2020-15917?
CVE-2020-15917 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2020-15917?
Check the references section above for vendor advisories and patch information. Affected products include: Claws-Mail Claws-Mail, Fedoraproject Fedora, Opensuse Backports Sle, Opensuse Leap.