Vulnerability Details : CVE-2021-33515
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.
Products affected by CVE-2021-33515
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:a:dovecot:dovecot:*:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-33515
0.95%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 83 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-33515
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:N |
8.6
|
4.9
|
NIST | |
|
4.8
|
MEDIUM | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N |
2.2
|
2.5
|
NIST |
CWE ids for CVE-2021-33515
-
The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-33515
-
https://www.openwall.com/lists/oss-security/2021/06/28/2
oss-security - CVE-2021-33515: Dovecot SMTP Submission service STARTTLS injection.Mailing List;Third Party Advisory
-
https://dovecot.org/security
SecurityVendor Advisory
-
https://lists.debian.org/debian-lts-announce/2022/09/msg00032.html
[SECURITY] [DLA 3122-1] dovecot security updateMailing List;Third Party Advisory
-
https://security.gentoo.org/glsa/202107-41
Dovecot: Multiple vulnerabilities (GLSA 202107-41) — Gentoo securityThird Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JB2VTJ3G2ILYWH5Y2FTY2PUHT2MD6VMI/
[SECURITY] Fedora 34 Update: dovecot-2.3.15-1.fc34 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TK424DWFO2TKJYXZ2H3XL633TYJL4GQN/
[SECURITY] Fedora 33 Update: dovecot-2.3.15-1.fc33 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
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