CVE-2021-33515

Description

The submission service in Dovecot before 2.3.15 allows STARTTLS command injection in lib-smtp. Sensitive information can be redirected to an attacker-controlled address.

Category

4.8
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 7.94% Top 10%
Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory gentoo.org Vendor Advisory dovecot.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://dovecot.org/security vendor advisory
https://www.openwall.com/lists/oss-security/2021/06/28/2 third party advisory mailing list
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JB2VTJ3G2ILYWH5Y2FTY2PUHT2MD6VMI/ vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TK424DWFO2TKJYXZ2H3XL633TYJL4GQN/ vendor advisory
https://security.gentoo.org/glsa/202107-41 third party advisory vendor advisory
https://lists.debian.org/debian-lts-announce/2022/09/msg00032.html third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2021-33515?
CVE-2021-33515 has been scored as a medium severity vulnerability.
How to fix CVE-2021-33515?
To fix CVE-2021-33515, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-33515 being actively exploited in the wild?
It is possible that CVE-2021-33515 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~8% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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