CVE-2016-9318

MEDIUM
5.5
CVSS Score
Published: November 16, 2016 at 12:00 AM UTC
Updated: October 14, 2026 at 07:16 AM UTC
2 products affected across 2 vendorsUbuntu LinuxLIBXML2· also runs on 1 platform

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Severity
MEDIUM5.5
Exploit prediction
EPSS 3%
SSVC
PoC

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v ≤ 2.9.4
xmlsec-project-xmlsec (environment)

Runs on — not affected

The affected product only carries this flaw when running on these platforms. The platforms themselves are not vulnerable.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (8)

VDB Entryx_refsource_BIDThird Party Advisory
http://www.securityfocus.com/bid/94347
x_refsource_MISCIssue TrackingPatchThird Party AdvisoryVDB Entry
https://bugzilla.gnome.org/show_bug.cgi?id=772726
x_refsource_MISCExploitPatchThird Party Advisory
https://github.com/lsh123/xmlsec/issues/43
Vendor Advisoryx_refsource_GENTOOThird Party Advisory
https://security.gentoo.org/glsa/201711-01
Vendor Advisoryx_refsource_UBUNTUThird Party Advisory
https://usn.ubuntu.com/3739-1/
Vendor Advisoryx_refsource_UBUNTUThird Party Advisory
https://usn.ubuntu.com/3739-2/
Source: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
https://cert-portal.siemens.com/productcert/html/ssa-398330.html

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.5MEDIUMCISA-ADP
Attack Vector
LOCAL
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-611

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