Detections
Analytics

Echo: libxml2-2.9.1: security update to 2.9.1+e1

high Tenable Cloud Security Plugin ID 476470

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - The (1) xmlParserEntityCheck and (2) xmlParseAttValueComplex functions in parser.c in libxml2 2.9.3 do not
 properly keep track of the recursion depth, which allows context-dependent attackers to cause a denial of
 service (stack consumption and application crash) via a crafted XML document containing a large number of
 nested entity references. (CVE-2016-3705)

Solution

Update the libxml2-2.9.1 library and its related packages to version 2.9.1+e1 or later.

See Also

https://access.redhat.com/errata/RHSA-2016:1292

https://advisory.echohq.com/cve/CVE-2016-3705

Plugin Details

Severity: High

ID: 476470

Version: Revision 1.1

Type: Local

Published: 10/21/2026

Updated: 10/21/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.18

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS Score Source: CVE-2016-3705

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 10/21/2026

Vulnerability Publication Date: 5/4/2016

Reference Information

CVE: CVE-2016-3705