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CVE-2020-10958

Status Candidate

Overview

In Dovecot before 2.3.10.1, a crafted SMTP/LMTP message triggers an unauthenticated use-after-free bug in submission-login, submission, or lmtp, and can lead to a crash under circumstances involving many newlines after a command.

Related Files

Red Hat Security Advisory 2020-4763-01
Posted Nov 4, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-4763-01 - Dovecot is an IMAP server for Linux and other UNIX-like systems, written primarily with security in mind. It also contains a small POP3 server, and supports e-mail in either the maildir or mbox format. The SQL drivers and authentication plug-ins are provided as subpackages. Issues addressed include denial of service and use-after-free vulnerabilities.

tags | advisory, denial of service, vulnerability, imap
systems | linux, redhat, unix
advisories | CVE-2020-10958, CVE-2020-10967
SHA-256 | 95023ee6ccfb4930ceec503cc37701c443c932cfb1c4e11e4b4e377d760694ea
Debian Security Advisory 4690-1
Posted May 28, 2020
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4690-1 - Several vulnerabilities were discovered in the Dovecot email server, which could cause crashes in the submission, submission-login or lmtp services, resulting in denial of service.

tags | advisory, denial of service, vulnerability
systems | linux, debian
advisories | CVE-2020-10957, CVE-2020-10958, CVE-2020-10967
SHA-256 | 9d63598a1c71dc750c77f667387b4618d03c19f05df378ce707cb2a4abea6c26
Open-Xchange Dovecot 2.3.10 Null Pointer Dereference / Denial Of Service
Posted May 19, 2020
Authored by Philippe Antoine

Open-Xchange Dovecot versions 2.3.0 through 2.3.10 suffer from null pointer dereference and denial of service vulnerabilities.

tags | exploit, denial of service, vulnerability
advisories | CVE-2020-10957, CVE-2020-10958, CVE-2020-10967
SHA-256 | 3aa6155c0580d269fb7fdbdd9648de20d10f066c289ea5f31c5a7bb2f6be630b
Ubuntu Security Notice USN-4361-1
Posted May 18, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4361-1 - Philippe Antoine discovered that Dovecot incorrectly handled certain data. An attacker could possibly use this issue to cause a denial of service. Philippe Antoine discovered that Dovecot incorrectly handled certain data. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code.

tags | advisory, denial of service, arbitrary
systems | linux, ubuntu
advisories | CVE-2020-10957, CVE-2020-10958
SHA-256 | 6ee8911fff03fb389c0482431869fdad5c89631e6f7a743f0768e361e278a6ba
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