CVEvulnerability
CVE-2020-15953
7.4 HIGH
Official page ↗
- Status
- Modified
- Published
- 2020-07-27
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.4 HIGH — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
- CVSS 2.0 ([email protected])
- 5.8 MEDIUM — AV:N/AC:M/Au:N/C:P/I:P/A:N
- Weaknesses
- CWE-74
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."
Affected configurations
• libetpan project libetpan (<= 1.9.4)
• libmailcore mailcore2 (<= 0.6.3)
• fedoraproject fedora 31
• fedoraproject fedora 32
• debian debian linux 9.0
Related
Weakness · CWE (1)
- CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component weakness
References
- http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00060.html Broken Link
- http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00075.html Broken Link
- https://github.com/dinhvh/libetpan/issues/386 Exploit, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/08/msg00026.html Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M65FVH5XPS23NLHFN3ABEGBSCHZAISXN/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QFBWNA5REI5ZGW2DAOEAVHM23MOU6O5J/ lists.fedoraproject.org
- https://security.gentoo.org/glsa/202007-55 Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00060.html Broken Link
- http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00075.html Broken Link
- https://github.com/dinhvh/libetpan/issues/386 Exploit, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/08/msg00026.html Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M65FVH5XPS23NLHFN3ABEGBSCHZAISXN/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QFBWNA5REI5ZGW2DAOEAVHM23MOU6O5J/ lists.fedoraproject.org
- https://security.gentoo.org/glsa/202007-55 Third Party Advisory