CVE-2020-15953

high

Description

LibEtPan through 1.9.4, as used in MailCore 2 through 0.6.3 and other products, has a STARTTLS buffering issue that affects IMAP, SMTP, and POP3. When a server sends a "begin TLS" response, the client reads additional data (e.g., from a meddler-in-the-middle attacker) and evaluates it in a TLS context, aka "response injection."

References

https://security.gentoo.org/glsa/202007-55

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QFBWNA5REI5ZGW2DAOEAVHM23MOU6O5J/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M65FVH5XPS23NLHFN3ABEGBSCHZAISXN/

https://lists.debian.org/debian-lts-announce/2020/08/msg00026.html

https://github.com/dinhvh/libetpan/issues/386

http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00075.html

http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00060.html

Details

Source: Mitre, NVD

Published: 2020-07-27

Updated: 2023-11-07

Risk Information

CVSS v2

Base Score: 5.8

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 7.4

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Severity: High