4.3
MEDIUM
CVE-2020-28200
Dovecot Uncontrolled Resource Consumption Vulnerability
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.

INFO

Published Date :

June 28, 2021, 1:15 p.m.

Last Modified :

Nov. 7, 2023, 3:21 a.m.

Remotely Exploitable :

Yes !

Impact Score :

1.4

Exploitability Score :

2.8
Affected Products

The following products are affected by CVE-2020-28200 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Fedoraproject fedora
1 Dovecot dovecot
References to Advisories, Solutions, and Tools

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2020-28200 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2020-28200 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Nov. 07, 2023

    Action Type Old Value New Value
    Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JB2VTJ3G2ILYWH5Y2FTY2PUHT2MD6VMI/ [No types assigned]
    Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TK424DWFO2TKJYXZ2H3XL633TYJL4GQN/ [No types assigned]
    Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/TK424DWFO2TKJYXZ2H3XL633TYJL4GQN/
    Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/JB2VTJ3G2ILYWH5Y2FTY2PUHT2MD6VMI/
  • CWE Remap by [email protected]

    May. 03, 2022

    Action Type Old Value New Value
    Changed CWE CWE-697 CWE-770
  • Modified Analysis by [email protected]

    Sep. 20, 2021

    Action Type Old Value New Value
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/JB2VTJ3G2ILYWH5Y2FTY2PUHT2MD6VMI/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/JB2VTJ3G2ILYWH5Y2FTY2PUHT2MD6VMI/ Mailing List, Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/TK424DWFO2TKJYXZ2H3XL633TYJL4GQN/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/TK424DWFO2TKJYXZ2H3XL633TYJL4GQN/ Mailing List, Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Jul. 05, 2021

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/TK424DWFO2TKJYXZ2H3XL633TYJL4GQN/ [No Types Assigned]
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/JB2VTJ3G2ILYWH5Y2FTY2PUHT2MD6VMI/ [No Types Assigned]
  • Initial Analysis by [email protected]

    Jul. 02, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:S/C:N/I:N/A:P)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
    Changed Reference Type https://dovecot.org/security No Types Assigned https://dovecot.org/security Vendor Advisory
    Changed Reference Type https://www.openwall.com/lists/oss-security/2021/06/28/3 No Types Assigned https://www.openwall.com/lists/oss-security/2021/06/28/3 Mailing List, Third Party Advisory
    Added CWE NIST CWE-697
    Added CPE Configuration OR *cpe:2.3:a:dovecot:dovecot:*:*:*:*:*:*:*:* versions up to (excluding) 2.3.15
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2020-28200 is associated with the following CWEs:

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.23 }} -0.06%

score

0.60763

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability