Apache Xerces-C up to 3.2.0 XML Parser null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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7.4$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Apache Xerces-C up to 3.2.0. The affected element is an unknown function of the component XML Parser. Performing a manipulation results in null pointer dereference. This vulnerability is known as CVE-2017-12627. Remote exploitation of the attack is possible. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Apache Xerces-C up to 3.2.0. It has been classified as problematic. This affects some unknown functionality of the component XML Parser. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on availability. The summary by CVE is:

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.

The bug was discovered 03/01/2018. The weakness was published 03/01/2018 by Alberto Garcia with salesforce.com as confirmed mailinglist post (oss-sec). It is possible to read the advisory at seclists.org. This vulnerability is uniquely identified as CVE-2017-12627 since 08/07/2017. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 109499 (EulerOS 2.0 SP2 : xerces-c (EulerOS-SA-2018-1101)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Huawei Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 171664 (SUSE Enterprise Linux Security Update for Xerces-c (SUSE-SU-2018:3277-1)).

Upgrading to version 3.2.1 eliminates this vulnerability. A possible mitigation has been published 2 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (109499) and SecurityFocus (BID 103219†). Similar entry is available at VDB-88827. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 109499
Nessus Name: EulerOS 2.0 SP2 : xerces-c (EulerOS-SA-2018-1101)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 63641
OpenVAS Name: Debian LTS Advisory ([SECURITY] [DLA 1328-1] xerces-c security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: Xerces-C 3.2.1

Timelineinfo

08/07/2017 🔍
03/01/2018 +206 days 🔍
03/01/2018 +0 days 🔍
03/01/2018 +0 days 🔍
03/01/2018 +0 days 🔍
03/02/2018 +1 days 🔍
04/02/2018 +31 days 🔍
05/02/2018 +30 days 🔍
02/16/2023 +1751 days 🔍

Sourcesinfo

Vendor: apache.org

Advisory: DLA 1328-1
Researcher: Alberto Garcia
Organization: salesforce.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-12627 (🔍)
GCVE (CVE): GCVE-0-2017-12627
GCVE (VulDB): GCVE-100-113955
SecurityFocus: 103219 - Apache Xerces-C CVE-2017-12627 Null Pointer Dereference Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 03/02/2018 07:52
Updated: 02/16/2023 10:00
Changes: 03/02/2018 07:52 (77), 01/09/2020 15:35 (6), 02/16/2023 10:00 (4)
Complete: 🔍
Cache ID: 216::103

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