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CVE-2013-6171

Status Candidate

Overview

checkpassword-reply in Dovecot before 2.2.7 performs setuid operations to a user who is authenticating, which allows local users to bypass authentication and access virtual email accounts by attaching to the process and using a restricted file descriptor to modify account information in the response to the dovecot-auth server.

Related Files

Ubuntu Security Notice USN-3556-2
Posted Feb 3, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3556-2 - USN-3556-1 fixed vulnerabilities in Dovecot. This update provides the corresponding update for Ubuntu 12.04 ESM. It was discovered that Dovecot incorrectly handled certain authentications. An attacker could possibly use this to bypass authentication and access sensitive information. Various other issues were also addressed.

tags | advisory, vulnerability
systems | linux, ubuntu
advisories | CVE-2013-6171, CVE-2017-15132
SHA-256 | ec5451f5f5fbad1a4b5d212e71f5225bc2c339fdc87e030edc7b410d020b013e
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