mxml up to 2.7/2.9 XML File mxml-file.c mxml_write_node resource management

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in mxml up to 2.7/2.9. This affects the function mxml_write_node of the file mxml-file.c of the component XML File Handler. The manipulation leads to resource management. This vulnerability is uniquely identified as CVE-2016-4571. The attack is possible to be carried out remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in mxml up to 2.7/2.9. This issue affects the function mxml_write_node of the file mxml-file.c of the component XML File Handler. The manipulation with an unknown input leads to a resource management vulnerability. Using CWE to declare the problem leads to CWE-399. Impacted is availability. The summary by CVE is:

The mxml_write_node function in mxml-file.c in mxml 2.9, 2.7, and possibly earlier allows remote attackers to cause a denial of service (stack consumption) via crafted xml file.

The bug was discovered 05/09/2016. The weakness was disclosed 02/03/2017 by Gustavo Grieco (Website). It is possible to read the advisory at openwall.com. The identification of this vulnerability is CVE-2016-4571 since 05/09/2016. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 270 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 99015 (openSUSE Security Update : mxml (openSUSE-2017-380)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 176717 (Debian Security Update for mxml (DLA 1641-1)).

Upgrading 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 (99015) and SecurityFocus (BID 90315†). The entries VDB-96526 and VDB-127763 are pretty similar. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

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

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 99015
Nessus Name: openSUSE Security Update : mxml (openSUSE-2017-380)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 800912
OpenVAS Name: Fedora Update for mxml FEDORA-2016-44821f9576
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: 🔍

Timelineinfo

05/07/2016 🔍
05/09/2016 +2 days 🔍
05/09/2016 +0 days 🔍
02/03/2017 +270 days 🔍
02/03/2017 +0 days 🔍
02/03/2017 +0 days 🔍
03/27/2017 +52 days 🔍
03/28/2017 +1 days 🔍
11/11/2022 +2054 days 🔍

Sourcesinfo

Advisory: DLA 1641-1
Researcher: Gustavo Grieco
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-4571 (🔍)
GCVE (CVE): GCVE-0-2016-4571
GCVE (VulDB): GCVE-100-96527
SecurityFocus: 90315 - Mini-XML Stack Exhaustion Multiple Denial of Service Vulnerabilities
OSVDB: - CVE-2016-4571 - MXML - Denial of Service Issue

See also: 🔍

Entryinfo

Created: 02/03/2017 19:49
Updated: 11/11/2022 14:29
Changes: 02/03/2017 19:49 (74), 08/10/2020 21:26 (9), 11/11/2022 14:29 (4)
Complete: 🔍
Cache ID: 216::103

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