Vulnerability · Published Jun 28, 2021 · Assigned by mitre
CVE-2020-28200
Medium 4.3
In plain English
A medium-severity security flaw in the dovecot package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.0% (higher than 80% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)4.3Medium
Exploit odds (30 days)2.0%top 19.5% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
The Sieve engine in Dovecot before 2.3.15 allows Uncontrolled Resource Consumption, as demonstrated by a situation with a complex regular expression for the regex extension.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | dovecot | 1:2.3.16+dfsg1-1 | DEBIAN-CVE-2020-28200 |
| Debian:13 | dovecot | 1:2.3.16+dfsg1-1 | DEBIAN-CVE-2020-28200 |
| Debian:14 | dovecot | 1:2.3.16+dfsg1-1 | DEBIAN-CVE-2020-28200 |
Affected products (as reported)
References
- https://dovecot.org/security x_refsource_MISC
- https://www.openwall.com/lists/oss-security/2021/06/28/3 x_refsource_CONFIRM
- FEDORA-2021-208340a217 vendor-advisory, x_refsource_FEDORA
- FEDORA-2021-891c1ab1ac vendor-advisory, x_refsource_FEDORA