CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
69.4%
Issue Overview:
In Dovecot before 2.2.36.3 and 2.3.x before 2.3.5.1, a local attacker can cause a buffer overflow in the indexer-worker process, which can be used to elevate to root. This occurs because of missing checks in the fts and pop3-uidl components. (CVE-2019-7524)
It was discovered that Dovecot before versions 2.2.36.1 and 2.3.4.1 incorrectly handled client certificates. A remote attacker in possession of a valid certificate with an empty username field could possibly use this issue to impersonate other users. (CVE-2019-3814)
Affected Packages:
dovecot
Note:
This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.
Issue Correction:
Run yum update dovecot to update your system.
New Packages:
aarch64:
dovecot-2.2.36-6.amzn2.aarch64
dovecot-pigeonhole-2.2.36-6.amzn2.aarch64
dovecot-pgsql-2.2.36-6.amzn2.aarch64
dovecot-mysql-2.2.36-6.amzn2.aarch64
dovecot-devel-2.2.36-6.amzn2.aarch64
dovecot-debuginfo-2.2.36-6.amzn2.aarch64
i686:
dovecot-2.2.36-6.amzn2.i686
dovecot-pigeonhole-2.2.36-6.amzn2.i686
dovecot-pgsql-2.2.36-6.amzn2.i686
dovecot-mysql-2.2.36-6.amzn2.i686
dovecot-devel-2.2.36-6.amzn2.i686
dovecot-debuginfo-2.2.36-6.amzn2.i686
src:
dovecot-2.2.36-6.amzn2.src
x86_64:
dovecot-2.2.36-6.amzn2.x86_64
dovecot-pigeonhole-2.2.36-6.amzn2.x86_64
dovecot-pgsql-2.2.36-6.amzn2.x86_64
dovecot-mysql-2.2.36-6.amzn2.x86_64
dovecot-devel-2.2.36-6.amzn2.x86_64
dovecot-debuginfo-2.2.36-6.amzn2.x86_64
Red Hat: CVE-2019-3814, CVE-2019-7524
Mitre: CVE-2019-3814, CVE-2019-7524
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Amazon Linux | 2 | aarch64 | dovecot | < 2.2.36-6.amzn2 | dovecot-2.2.36-6.amzn2.aarch64.rpm |
Amazon Linux | 2 | aarch64 | dovecot-pigeonhole | < 2.2.36-6.amzn2 | dovecot-pigeonhole-2.2.36-6.amzn2.aarch64.rpm |
Amazon Linux | 2 | aarch64 | dovecot-pgsql | < 2.2.36-6.amzn2 | dovecot-pgsql-2.2.36-6.amzn2.aarch64.rpm |
Amazon Linux | 2 | aarch64 | dovecot-mysql | < 2.2.36-6.amzn2 | dovecot-mysql-2.2.36-6.amzn2.aarch64.rpm |
Amazon Linux | 2 | aarch64 | dovecot-devel | < 2.2.36-6.amzn2 | dovecot-devel-2.2.36-6.amzn2.aarch64.rpm |
Amazon Linux | 2 | aarch64 | dovecot-debuginfo | < 2.2.36-6.amzn2 | dovecot-debuginfo-2.2.36-6.amzn2.aarch64.rpm |
Amazon Linux | 2 | i686 | dovecot | < 2.2.36-6.amzn2 | dovecot-2.2.36-6.amzn2.i686.rpm |
Amazon Linux | 2 | i686 | dovecot-pigeonhole | < 2.2.36-6.amzn2 | dovecot-pigeonhole-2.2.36-6.amzn2.i686.rpm |
Amazon Linux | 2 | i686 | dovecot-pgsql | < 2.2.36-6.amzn2 | dovecot-pgsql-2.2.36-6.amzn2.i686.rpm |
Amazon Linux | 2 | i686 | dovecot-mysql | < 2.2.36-6.amzn2 | dovecot-mysql-2.2.36-6.amzn2.i686.rpm |
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
69.4%