ALAS-2020-1363


Amazon Linux AMI Security Advisory: ALAS-2020-1363
Advisory Release Date: 2020-05-08 19:50 Pacific
Advisory Updated Date: 2020-05-14 02:28 Pacific
Severity: Medium

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


Issue Correction:
Run yum update dovecot to update your system.

New Packages:
i686:
    dovecot-2.2.36-6.19.amzn1.i686
    dovecot-devel-2.2.36-6.19.amzn1.i686
    dovecot-pgsql-2.2.36-6.19.amzn1.i686
    dovecot-pigeonhole-2.2.36-6.19.amzn1.i686
    dovecot-debuginfo-2.2.36-6.19.amzn1.i686
    dovecot-mysql-2.2.36-6.19.amzn1.i686

src:
    dovecot-2.2.36-6.19.amzn1.src

x86_64:
    dovecot-pigeonhole-2.2.36-6.19.amzn1.x86_64
    dovecot-mysql-2.2.36-6.19.amzn1.x86_64
    dovecot-debuginfo-2.2.36-6.19.amzn1.x86_64
    dovecot-2.2.36-6.19.amzn1.x86_64
    dovecot-pgsql-2.2.36-6.19.amzn1.x86_64
    dovecot-devel-2.2.36-6.19.amzn1.x86_64