The vulnerability of the Dovecot mail server, related to the execution of operations beyond buffer boundaries in memory, allows attackers to increase their privileges.

The vulnerability of the Dovecot mail server stems from the lack of checks for buffer sizes during the reading of FTS headers or POP3-UIDL from the Dovecot pointer. Exploiting this vulnerability can allow an attacker to increase their privileges...

CVE-2019-10691

The JSON encoder in Dovecot before 2.3.5.2 allows attackers to repeatedly crash the authentication service by attempting to authenticate with an invalid UTF-8 sequence as the username...

CVE-2019-10691

The JSON encoder in Dovecot before 2.3.5.2 allows attackers to repeatedly crash the authentication service by attempting to authenticate with an invalid UTF-8 sequence as the username...

DEBIAN-CVE-2019-10691

The JSON encoder in Dovecot before 2.3.5.2 allows attackers to repeatedly crash the authentication service by attempting to authenticate with an invalid UTF-8 sequence as the username...

Design/Logic Flaw

The JSON encoder in Dovecot before 2.3.5.2 allows attackers to repeatedly crash the authentication service by attempting to authenticate with an invalid UTF-8 sequence as the username...

ALPINE-CVE-2019-10691

The JSON encoder in Dovecot before 2.3.5.2 allows attackers to repeatedly crash the authentication service by attempting to authenticate with an invalid UTF-8 sequence as the username...

CVE-2019-10691

The JSON encoder in Dovecot before 2.3.5.2 allows attackers to repeatedly crash the authentication service by attempting to authenticate with an invalid UTF-8 sequence as the username...

CVE-2019-10691

The JSON encoder in Dovecot before 2.3.5.2 allows attackers to repeatedly crash the authentication service by attempting to authenticate with an invalid UTF-8 sequence as the username...

CVE-2019-10691

CVE-2019-10691 affects Dovecot, where the JSON encoder in versions prior to 2.3.5.2 can be triggered by an invalid UTF-8 sequence as the username, causing repeated crashes of the authentication service. Connected docs corroborate this with references to Dovecot versions and the vulnerability desc...

CVE-2019-10691

The JSON encoder in Dovecot before 2.3.5.2 allows attackers to repeatedly crash the authentication service by attempting to authenticate with an invalid UTF-8 sequence as the username...

Ubuntu 18.10 / 19.04 : Dovecot vulnerability (USN-3951-1)

It was discovered that the Dovecot JSON encoder incorrectly handled certain invalid UTF-8 characters. A remote attacker could possibly use this issue to cause Dovecot to repeatedly crash, resulting in a denial of service. Note that Tenable Network Security has extracted the preceding description...

CVE-2019-10691: Undefined Security Weakness

The JSON encoder in Dovecot before 2.3.5.2 allows attackers to repeatedly crash the authentication service by attempting to authenticate with an invalid UTF-8 sequence as the username...

Ubuntu: Security Advisory (USN-3951-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2019 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

USN-3951-1: Dovecot vulnerability

It was discovered that the Dovecot JSON encoder incorrectly handled certain invalid UTF-8 characters. A remote attacker could possibly use this issue to cause Dovecot to repeatedly crash, resulting in a denial of service...

Open-Xchange: Two heap use-after-free errors in IMAP operations

Summary ======= We’ve found two heap use-after-free errors, one in lib-storage/index/index-storage.c: indexcopycachefields and one in lib-index/mail-index-sync-update.c: mailindexsyncrecordreal. Error 1: indexcopycachefields ---------------------------------------------- This error involves two...

FreeBSD : dovecot -- json encoder crash (a64aa22f-61ec-11e9-85b9-a4badb296695)

Aki Tuomi reports : CVE-2019-10691: Trying to login with 8bit username containing invalid UTF8 input causes auth process to crash if auth policy is enabled. This could be used rather easily to cause a DoS. Similar crash also happens during mail delivery when using invalid UTF8 in From or Subject...

CVE-2019-10691

The JSON encoder in Dovecot before 2.3.5.2 allows attackers to repeatedly crash the authentication service by attempting to authenticate with an invalid UTF-8 sequence as the username...

CVE-2019-10691

The JSON encoder in Dovecot before 2.3.5.2 allows attackers to repeatedly crash the authentication service by attempting to authenticate with an invalid UTF-8 sequence as the username...

UBUNTU-CVE-2019-10691

The JSON encoder in Dovecot before 2.3.5.2 allows attackers to repeatedly crash the authentication service by attempting to authenticate with an invalid UTF-8 sequence as the username...

[ASA-201904-9] dovecot: denial of service

Arch Linux Security Advisory ASA-201904-9 ========================================= Severity: Medium Date : 2019-04-18 CVE-ID : CVE-2019-10691 Package : dovecot Type : denial of service Remote : Yes Link : https://security.archlinux.org/AVG-950 Summary ======= The package dovecot before version...