Xmlsoft libxml2 2.9.2 Entity Expansion resource management

CVSS Meta Temp Score
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CTI Interest Score
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4.6$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Xmlsoft libxml2 2.9.2. This vulnerability affects unknown code of the component Entity Expansion Handler. Performing a manipulation results in resource management. This vulnerability is known as CVE-2015-5312. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in Xmlsoft libxml2 2.9.2 (Document Processing Software). This affects an unknown code of the component Entity Expansion Handler. The manipulation with an unknown input leads to a resource management vulnerability. CWE is classifying the issue as CWE-399. This is going to have an impact on integrity.

The weakness was published 11/25/2015 by Kostya Serebryany with Google (Website). It is possible to read the advisory at git.gnome.org. This vulnerability is uniquely identified as CVE-2015-5312 since 07/01/2015. 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 87354 (Amazon Linux AMI : libxml2 (ALAS-2015-628)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Amazon Linux Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 351588 (Amazon Linux Security Advisory for libxml2: ALAS2-2019-1220).

Upgrading to version 2.9.3 eliminates this vulnerability. A possible mitigation has been published 3 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (108319), Tenable (87354), SecurityFocus (BID 79536†) and Vulnerability Center (SBV-54844†). Similar entries are available at VDB-77250, VDB-79257, VDB-79258 and VDB-79334. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.6

VulDB Base Score: 5.3
VulDB Temp Score: 4.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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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: No
Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 87354
Nessus Name: Amazon Linux AMI : libxml2 (ALAS-2015-628)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 703430
OpenVAS Name: Debian Security Advisory DSA 3430-1 (libxml2 - 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: libxml2 2.9.3
Patch: git.gnome.org

Timelineinfo

07/01/2015 🔍
11/25/2015 +147 days 🔍
11/25/2015 +0 days 🔍
11/26/2015 +1 days 🔍
12/08/2015 +12 days 🔍
12/14/2015 +6 days 🔍
12/15/2015 +1 days 🔍
12/15/2015 +0 days 🔍
12/17/2015 +2 days 🔍
06/28/2022 +2385 days 🔍

Sourcesinfo

Advisory: USN-2834-1
Researcher: Kostya Serebryany
Organization: Google
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-5312 (🔍)
GCVE (CVE): GCVE-0-2015-5312
GCVE (VulDB): GCVE-100-79335

OVAL: 🔍

X-Force: 108319 - Libxml2 entity expansion flaw unspecified
SecurityFocus: 79536 - libxml2 CVE-2015-5312 XML Entity Expansion Denial of Service Vulnerability
SecurityTracker: 1034243
Vulnerability Center: 54844 - Libxml2 Remote DoS via Crafted XML Input, High

See also: 🔍

Entryinfo

Created: 11/26/2015 11:47
Updated: 06/28/2022 07:34
Changes: 11/26/2015 11:47 (68), 05/11/2018 13:05 (14), 06/28/2022 07:28 (6), 06/28/2022 07:34 (1)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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