Vulnerability CVE-2018-1114

Vulnerability Name:

CVE-2018-1114 (CCN-150543)

Assigned:

2017-12-04

Published:

2018-09-11

Updated:

2019-10-09

Summary:

It was found that URLResource.getLastModified() in Undertow closes the file descriptors only when they are finalized which can cause file descriptors to exhaust. This leads to a file handler leak.

CVSS v3 Severity:

6.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
5.7 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): Low Privileges Required (PR): Low User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): High

7.5 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): High

CVSS v2 Severity:

4.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:S/C:N/I:N/A:P)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Low Authentication (Au): Single_Instance
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): Partial

7.8 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Low Athentication (Au): None
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): Complete

Vulnerability Type:

CWE-400

Vulnerability Consequences:

Denial of Service

References:

Source: MITRE
Type: CNA
CVE-2018-1114

Source: CCN
Type: Red Hat Web site
RHSA-2018:2643 - Security Advisory

Source: REDHAT
Type: Vendor Advisory
RHSA-2018:2643

Source: CCN
Type: Red Hat Web site
RHSA-2018:2669 - Security Advisory

Source: REDHAT
Type: Vendor Advisory
RHSA-2018:2669

Source: REDHAT
Type: Vendor Advisory
RHSA-2019:0877

Source: MISC
Type: Third Party Advisory
https://bugs.openjdk.java.net/browse/JDK-6956385

Source: CCN
Type: Red Hat Bugzilla Bug 1573045
CVE-2018-1114 undertow: File descriptor leak caused by JarURLConnection.getLastModified() allows attacker to cause a denial of service

Source: CONFIRM
Type: Issue Tracking, Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1114

Source: XF
Type: UNKNOWN
redhat-cve20181114-dos(150543)

Source: MISC
Type: Issue Tracking, Third Party Advisory
https://issues.jboss.org/browse/UNDERTOW-1338

Vulnerable Configuration:

Configuration 1:

cpe:/a:redhat:undertow:-:*:*:*:*:*:*:*

OR cpe:/a:redhat:virtualization:4.0:*:*:*:*:*:*:*

OR cpe:/a:redhat:virtualization:4.2:*:*:*:*:*:*:*

OR cpe:/a:redhat:virtualization_host:4.0:*:*:*:*:*:*:*

Denotes that component is vulnerable

Oval Definitions

Definition ID	Class	Title	Last Modified
oval:com.ubuntu.disco:def:201811140000000	V	CVE-2018-1114 on Ubuntu 19.04 (disco) - medium.	2018-09-11
oval:com.ubuntu.cosmic:def:201811140000000	V	CVE-2018-1114 on Ubuntu 18.10 (cosmic) - medium.	2018-09-11
oval:com.ubuntu.bionic:def:20181114000	V	CVE-2018-1114 on Ubuntu 18.04 LTS (bionic) - medium.	2018-09-11
oval:com.ubuntu.bionic:def:201811140000000	V	CVE-2018-1114 on Ubuntu 18.04 LTS (bionic) - medium.	2018-09-11
oval:com.ubuntu.cosmic:def:20181114000	V	CVE-2018-1114 on Ubuntu 18.10 (cosmic) - medium.	2018-09-11
oval:com.ubuntu.xenial:def:201811140000000	V	CVE-2018-1114 on Ubuntu 16.04 LTS (xenial) - medium.	2018-09-11
oval:com.ubuntu.xenial:def:20181114000	V	CVE-2018-1114 on Ubuntu 16.04 LTS (xenial) - medium.	2018-09-11
oval:com.ubuntu.artful:def:20181114000	V	CVE-2018-1114 on Ubuntu 17.10 (artful) - medium.	2018-04-30

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