CVE-2017-15130

Severity

43%

Complexity

86%

Confidentiality

48%

A denial of service flaw was found in dovecot before 2.2.34. 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.

A denial of service flaw was found in dovecot before 2.2.34. 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.

CVSS 3.0 Base Score 5.9. CVSS Attack Vector: network. CVSS Attack Complexity: high. CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H).

CVSS 2.0 Base Score 4.3. CVSS Attack Vector: network. CVSS Attack Complexity: medium. CVSS Vector: (AV:N/AC:M/Au:N/C:N/I:N/A:P).

Overview

First reported 6 years ago

2018-03-02 15:29:00

Last updated 5 years ago

2019-10-03 00:03:00

Affected Software

Dovecot

Debian Linux 8.0 (Jessie)

8.0

Debian Linux 9.0

9.0

Canonical Ubuntu Linux 14.04 LTS (Long-Term Support)

14.04

Canonical Ubuntu Linux 16.04 LTS (Long-Term Support)

16.04

Canonical Ubuntu Linux 17.10

17.10

References

[oss-security] 20180301 Dovecot Security Advisory: CVE-2017-15130 TLS SNI config lookups are inefficient and can be used for DoS

Mailing List, Third Party Advisory

https://bugzilla.redhat.com/show_bug.cgi?id=1532356

Issue Tracking, Third Party Advisory

[debian-lts-announce] 20180331 [SECURITY] [DLA 1333-1] dovecot security update

USN-3587-1

Third Party Advisory

USN-3587-2

DSA-4130

Third Party Advisory

[dovecot-news] 20180228 v2.2.34 released

Release Notes, Vendor Advisory

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