USN-4456-2: dovecot Ubuntu

CVSS: UnknownPublished
Published 17-08-2020Last modified 22-04-2026
Open JSON

Vulnerability summary

USN-4456-2 is a vulnerability in dovecot Ubuntu with no CVSS score yet.

Overall risk
0/100
0100
Minimal · default modelHow is this calculated?
CVSS score
Not scored
010
No CVSS score recorded
EPSS score
Not scored
0%100%
No EPSS score yet
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 3 · Downstream 0 · Related 3
CVE-2020-12100CVE-2020-12673CVE-2020-12674

Timeline

  1. 17-08-2020
    PublishedVulnerability first disclosed.
  2. 22-04-2026
    Last modifiedVulnerability information updated.

Description

dovecot vulnerabilities USN-4456-1 fixed several vulnerabilities in Dovecot. This update provides the corresponding update for Ubuntu 14.04 ESM. Original advisory details: It was discovered that Dovecot incorrectly handled deeply nested MIME parts. A remote attacker could possibly use this issue to cause Dovecot to consume resources, resulting in a denial of service. (CVE-2020-12100) It was discovered that Dovecot incorrectly handled memory when using NTLM. A remote attacker could possibly use this issue to cause Dovecot to crash, resulting in a denial of service. (CVE-2020-12673) It was discovered that the Dovecot RPA mechanism incorrectly handled zero-length messages. A remote attacker could possibly use this issue to cause Dovecot to crash, resulting in a denial of service. (CVE-2020-12674)

CVSS metrics

Risk metrics not yet published.

EPSS trend

No EPSS score has been published for this record yet.

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu1 product
  • dovecot< 1:2.2.9-1ubuntu2.6+esm3

1 vendor · 1 product

References

4 links