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CVE-2020-28200

Date: June 28, 2021

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.

Language: C

Severity Score

4.3

Related Resources (13)

Url: https://www.openwall.com/lists/oss-security/2021/06/28/3

Url: https://security-tracker.debian.org/tracker/CVE-2020-28200

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JB2VTJ3G2ILYWH5Y2FTY2PUHT2MD6VMI/

Url: https://security.archlinux.org/CVE-2020-28200

Url: https://github.com/dovecot/pigeonhole/commit/68505e444f91ebd784d419a8c11f1bc3fda3ceab

Url: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TK424DWFO2TKJYXZ2H3XL633TYJL4GQN/

Url: https://dovecot.org/security

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TK424DWFO2TKJYXZ2H3XL633TYJL4GQN/

Url: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JB2VTJ3G2ILYWH5Y2FTY2PUHT2MD6VMI/

Url: https://access.redhat.com/security/cve/CVE-2020-28200

Url: https://nvd.nist.gov/vuln/detail/CVE-2020-28200

Url: https://people.canonical.com/~ubuntu-security/cve/CVE-2020-28200

Url: https://www.mend.io/vulnerability-database/CVE-2020-28200

Severity Score

4.3

Weakness Type (CWE)

Incorrect Comparison

CWE-697

CVSS v3.1

Base Score:	4.3
Attack Vector (AV):	NETWORK
Attack Complexity (AC):	LOW
Privileges Required (PR):	LOW
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	NONE
Integrity (I):	NONE
Availability (A):	LOW

CVSS v2

Base Score:	4.0
Access Vector (AV):	NETWORK
Access Complexity (AC):	LOW
Authentication (AU):	SINGLE
Confidentiality (C):	NONE
Integrity (I):	NONE
Availability (A):	PARTIAL
Additional information:

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