Detections
Analytics

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

medium Tenable Cloud Security Plugin ID 476488

Description

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

 - An issue was discovered in libxml2 before 2.10.4. When hashing empty dict strings in a crafted XML
 document, xmlDictComputeFastKey in dict.c can produce non-deterministic values, leading to various logic
 and memory errors, such as a double free. This behavior occurs because there is an attempt to use the
 first byte of an empty string, and any value is possible (not solely the '\0' value). (CVE-2023-29469)

Solution

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

See Also

https://advisory.echohq.com/cve/CVE-2023-29469

Plugin Details

Severity: Medium

ID: 476488

Version: Revision 1.1

Type: Local

Published: 10/21/2026

Updated: 10/21/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.51

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2023-29469

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/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: 4/13/2023

Reference Information

CVE: CVE-2023-29469