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CVE-2017-12627

Publication date 1 March 2018

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

9.8 · Critical

Score breakdown

In Apache Xerces-C XML Parser library before 3.2.1, processing of external DTD paths can result in a null pointer dereference under certain conditions.

From the Ubuntu Security Team

It was discovered that Xerces-C++ mishandles certain kinds of external DTD references, resulting in dereference of a NULL pointer. An attacker could use this vulnerability to cause a denial of service.

Status

Package Ubuntu Release Status
xerces-c 23.04 lunar
Not affected
22.10 kinetic
Not affected
22.04 LTS jammy
Not affected
21.10 impish
Not affected
21.04 hirsute
Not affected
20.10 groovy
Not affected
20.04 LTS focal
Not affected
19.10 eoan
Not affected
19.04 disco
Not affected
18.10 cosmic
Not affected
18.04 LTS bionic
17.10 artful Ignored end of life
16.04 LTS xenial
14.04 LTS trusty
Fixed 3.1.1-5.1+deb8u4build0.14.04.1

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Severity score breakdown

Parameter Value
Base score 9.8 · Critical
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H