Univention Bugzilla – Bug 46481
dovecot: Multiple issues (4.2)
Last modified: 2018-04-18 14:15:59 CEST
New Debian dovecot 1:2.2.13-12~deb8u4 fixes: This update addresses the following issues: * An abort of SASL authentication results in a memory leak in dovecot's auth client used by login processes. The leak has impact in high performance configuration where same login processes are reused and can cause the process to crash due to memory exhaustion. (CVE-2017-15132) * A specially crafted email delivered over SMTP and passed on to Dovecot by MTA can trigger an out of bounds read resulting in potential sensitive information disclosure and denial of service. In order to trigger this vulnerability, an attacker needs to send a specially crafted email message to the server. (CVE-2017-14461) * An attacker able to generate random SNI server names could exploit TLS SNI configuration lookups, leading to excessive memory usage and the process to restart. (CVE-2017-15130) CVE-2017-15132 dovecot: Auth leaks memory if SASL authentication is aborted CVE-2017-14461 dovecot: Information Leak Vulnerability in rfc822_parse_domain leading to denial-of-service CVE-2017-15130 dovecot: TLS SNI config lookups are inefficient and can be used for DoS
[4.2-3] e30344e418 Bug #46481: dovecot_1:2.2.13-12~deb8u4 OK: <http://10.200.17.11/dovecot-imapd.dchdiff>... OK: <http://10.200.17.11/dovecot-imapd.debdiff>... OK: <http://10.200.17.11/dovecot-imapd_2.2.13-12~deb8u4_amd64.log>...
Verified: * Upstream binary imported into errata4.2-3 * No additional UCS patches in 4.2 * Installation of univention-mail-dovecot: Ok * Advisory: Ok
<http://errata.software-univention.de/ucs/4.2/329.html>