Xmlsoft libxml2 Recover Mode xmlStringGetNodeList recursion

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Xmlsoft libxml2. This impacts the function xmlStringGetNodeList of the component Recover Mode. This manipulation causes input validation. The identification of this vulnerability is CVE-2016-3627. It is possible to initiate the attack remotely. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Xmlsoft libxml2 (Document Processing Software) (version now known) and classified as critical. Affected by this vulnerability is the function xmlStringGetNodeList of the component Recover Mode. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-674. The product does not properly control the amount of recursion that takes place, consuming excessive resources, such as allocated memory or the program stack. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was shared 03/21/2016 by Gustavo Grieco as confirmed mailinglist post (oss-sec). The advisory is shared at seclists.org. This vulnerability is known as CVE-2016-3627 since 03/21/2016. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 91147 (openSUSE Security Update : libxml2 (openSUSE-2016-583)), 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 43650 (Juniper Junos Multiple vulnerabilities in libxml2 (JSA10916)).

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 X-Force (111586), Tenable (91147) and SecurityFocus (BID 84992†). The entries VDB-87415, VDB-87821, VDB-87822 and VDB-87823 are related to this item. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.5
VulDB Temp Score: 6.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
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: Recursion
CWE: CWE-674 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 91147
Nessus Name: openSUSE Security Update : libxml2 (openSUSE-2016-583)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 14611
OpenVAS Name: Amazon Linux Local Check: alas-2016-719
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

03/20/2016 🔍
03/21/2016 +0 days 🔍
03/21/2016 +0 days 🔍
03/23/2016 +2 days 🔍
05/13/2016 +50 days 🔍
05/16/2016 +3 days 🔍
05/17/2016 +1 days 🔍
12/04/2025 +3488 days 🔍

Sourcesinfo

Advisory: RHSA-2016:1292
Researcher: Gustavo Grieco
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-3627 (🔍)
GCVE (CVE): GCVE-0-2016-3627
GCVE (VulDB): GCVE-100-81409

OVAL: 🔍

X-Force: 111586 - libxml2 recover mode denial of service
SecurityFocus: 84992 - Libxml2 'malloc.c' CVE-2016-3627 Denial of Service Vulnerability
SecurityTracker: 1035335

See also: 🔍

Entryinfo

Created: 03/23/2016 11:55
Updated: 12/04/2025 18:25
Changes: 03/23/2016 11:55 (59), 09/08/2018 10:06 (26), 07/10/2022 15:40 (6), 12/04/2025 18:25 (21)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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