CVE-2020-15953
Last modified
CVE-2020-15953 is a high-severity vulnerability rated 7.4/10 on the CVSS scale. 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.". EPSS estimates a 2.39% chance of exploitation in the next 30 days.
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."
Metrics
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Libetpan Project | Libetpan | <= 1.9.4 |
| Libmailcore | Mailcore2 | <= 0.6.3 |
| Fedoraproject | Fedora | 31 |
| Fedoraproject | Fedora | 32 |
| Debian | Debian Linux | 9.0 |
References
- https://github.com/dinhvh/libetpan/issues/386Exploit, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/08/msg00026.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202007-55Third Party Advisory
- https://github.com/dinhvh/libetpan/issues/386Exploit, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/08/msg00026.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202007-55Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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