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CVE-2016-9318

Description

From CVE.org

libxml2 2.9.4 and earlier, as used in XMLSec 1.2.23 and earlier and other products, does not offer a flag directly indicating that the current document may be read but other files may not be opened, which makes it easier for remote attackers to conduct XML External Entity (XXE) attacks via a crafted document.

Mitigation

Application parsing untrusted input with libxml2 should be careful to NOT use entity expansion (enabled by XML_PARSE_NOENT) or DTD validation (XML_PARSE_DTDLOAD, XML_PARSE_DTDVALID) on such input.

Common Vulnerability Scoring System (CVSS) Score Details

Info alert:Important note

CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).

CVSS v3 Score Breakdown

Red HatNVDcve.org
Base Score6.75.55.5
Attack VectorLocalLocalLocal
Attack ComplexityHighLowLow
Privileges RequiredNoneNoneNone
User InteractionNoneRequiredRequired
ScopeChangedUnchangedUnchanged
ConfidentialityHighHighHigh
Integrity ImpactNoneNoneNone
Availability ImpactLowNoneNone

Vector

Red Hat: CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:L

NVD: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

cve.org: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

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