Detections
Analytics

openSUSE 16 Security Update : log4cxx (openSUSE-SU-2026:20705-1)

medium Nessus Plugin ID 313699

Synopsis

The remote openSUSE host is missing a security update.

Description

The remote openSUSE 16 host has packages installed that are affected by a vulnerability as referenced in the openSUSE- SU-2026:20705-1 advisory.

 Changes in log4cxx:

 - update to 1.7.0 (bsc#1261994, CVE-2026-40023):
 * Non-ascii characters incorrectly encoded in JSON output [#615]
 * XML output could contain characters not allowed by the XML 1.0 specification
 * An XML configuration file with recursive references caused program termination [#605]
 * Possible undefined behavior during a configuration change
 * Message loss when the calculation of a logged value also logs
 * ODBCAppender prepared statement value buffers had incorrect lifetimes [#581]

 - update to 1.6.0:
 * Configuration ${varname} values can be set programatically prior to loading a configuration file (see com/foo/config4.cpp) [#520]
 * The current executable's file name and its components are available for use in a configuration file and the LOG4CXX_CONFIGURATION environment variable (see log4cxx::spi::Configurator::properties).
 [#520]
 * Console output (Log4cxx internal logging and BasicConfigurator) use a color per message level by default [#529]
 * New logging macros that defer binary-to-text conversion until used in AsyncAppender's background thread
 * A simplified way to attach an AsyncAppender to a logger using a configuration file [#550]

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected liblog4cxx-devel and / or liblog4cxx15 packages.

See Also

https://bugzilla.suse.com/1261994

https://www.suse.com/security/cve/CVE-2026-40023

Plugin Details

Severity: Medium

ID: 313699

File Name: openSUSE-2026-20705-1.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 5/10/2026

Updated: 5/10/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 2.2

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2026-40023

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

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

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

CVSS v4

Risk Factor: Medium

Base Score: 6.3

Threat Score: 1.7

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N

Vulnerability Information

CPE: cpe:/o:novell:opensuse:16.0, p-cpe:/a:novell:opensuse:liblog4cxx-devel, p-cpe:/a:novell:opensuse:liblog4cxx15

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 5/7/2026

Vulnerability Publication Date: 4/10/2026

Reference Information

CVE: CVE-2026-40023