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Debian Security Advisory 4130-1

Debian Security Advisory 4130-1
Posted Mar 5, 2018
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4130-1 - Several vulnerabilities have been discovered in the Dovecot email server.

tags | advisory, vulnerability
systems | linux, debian
advisories | CVE-2017-14461, CVE-2017-15130, CVE-2017-15132
MD5 | ff5358c46cf0f32f866398aa80f7ae8f

Debian Security Advisory 4130-1

Change Mirror Download
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- -------------------------------------------------------------------------
Debian Security Advisory DSA-4130-1 security@debian.org
https://www.debian.org/security/ Salvatore Bonaccorso
March 02, 2018 https://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package : dovecot
CVE ID : CVE-2017-14461 CVE-2017-15130 CVE-2017-15132
Debian Bug : 888432 891819 891820

Several vulnerabilities have been discovered in the Dovecot email
server. The Common Vulnerabilities and Exposures project identifies the
following issues:

CVE-2017-14461

Aleksandar Nikolic of Cisco Talos and 'flxflndy' discovered that
Dovecot does not properly parse invalid email addresses, which may
cause a crash or leak memory contents to an attacker.

CVE-2017-15130

It was discovered that TLS SNI config lookups may lead to excessive
memory usage, causing imap-login/pop3-login VSZ limit to be reached
and the process restarted, resulting in a denial of service. Only
Dovecot configurations containing local_name { } or local { }
configuration blocks are affected.

CVE-2017-15132

It was discovered that Dovecot contains a memory leak flaw in the
login process on aborted SASL authentication.

For the oldstable distribution (jessie), these problems have been fixed
in version 1:2.2.13-12~deb8u4.

For the stable distribution (stretch), these problems have been fixed in
version 1:2.2.27-3+deb9u2.

We recommend that you upgrade your dovecot packages.

For the detailed security status of dovecot please refer to its security
tracker page at:
https://security-tracker.debian.org/tracker/dovecot

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org
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