Input validation error in c-ares - CVE-2023-32067

Vulnerability identifier: #VU76422

CSH Severity: Medium

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green

CVE-ID: CVE-2023-32067

CWE-ID: CWE-20

Exploitation vector: Remote access

Exploit availability: No public exploit available

Affected software:
c-ares
Gentoo Linux
Debian Linux
Amazon Linux AMI
Oracle Linux
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise High Performance Computing 12
SUSE Linux Enterprise High Performance Computing ESPOS 15
SUSE Linux Enterprise High Performance Computing LTSS 15
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Desktop 15
SUSE Linux Enterprise Software Development Kit 12
SUSE CaaS Platform
SUSE Manager Retail Branch Server
SUSE Manager Server
SUSE Manager Proxy
SUSE Linux Enterprise Micro
SUSE Linux Enterprise Micro for Rancher
openSUSE Leap Micro
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux Server
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, big endian
CentOS
Anolis OS
Red Hat Enterprise Linux for Scientific Computing
Red Hat Enterprise Linux for Power, little endian
SUSE Enterprise Storage
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux Server - TUS
Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Enterprise Linux for x86_64 - Extended Update Support
SUSE OpenStack Cloud
SUSE OpenStack Cloud Crowbar
Oracle Solaris
Web and Scripting Module
SUSE Linux Enterprise Server 12 SP2 BCL
SUSE Linux Enterprise Server
SUSE Linux Enterprise Server for SAP Applications
SUSE Linux Enterprise Server 12 SP4 LTSS
SUSE Linux Enterprise Server 12 SP4 ESPOS
SUSE Linux Enterprise Workstation Extension 12
Slackware Linux
SUSE Linux Enterprise High Performance Computing 15 SP1 LTSS
SUSE Linux Enterprise Server 15 SP1 LTSS
SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS
SUSE Linux Enterprise Server 15 SP2 LTSS
SUSE Linux Enterprise Server 15 SP3 LTSS
Basesystem Module
openSUSE Leap
Ubuntu
openEuler
Junos OS Evolved
Fedora
envoy
Red Hat OpenShift Container Platform
IBM Qradar SIEM
IBM QRadar Data Synchronization App
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
libc-ares2 (Ubuntu package)
libcares2-32bit
libcares2-debuginfo-32bit
libcares-devel
libcares2-debugsource
libcares2
libcares2-debuginfo
c-ares
c-ares-devel
c-ares (Red Hat package)
c-ares-debugsource
c-ares-help
c-ares-debuginfo
c-ares (Debian package)
net-dns/c-ares
c-ares-utils
libcares2-32bit-debuginfo
c-ares-utils-debuginfo
nodejs-nodemon
npm
rh-nodejs14-nodejs (Red Hat package)
nodejs (Red Hat package)
nodejs-full-i18n
nodejs-devel
nodejs-docs
nodejs
nodejs16-devel
npm16
nodejs16-debuginfo
nodejs16
nodejs16-docs
nodejs16-debugsource
corepack16
nodejs18-debugsource
nodejs18
nodejs18-debuginfo
nodejs18-devel
npm18
nodejs18-docs
corepack18
nodejs-packaging
nodejs-packaging-bundler
Storage Defender – Data Protect
ObjectScale
Enterprise SONiC
IBM Cloud Pak for Watson AIOps
Watson CP4D Data Stores
XtremIO X2
EMC Cloud Tiering Appliance
Dell PowerProtect Cyber Recovery
Red Hat Advanced Cluster Security for Kubernetes
App Connect Enterprise Certified Container
Session Smart Router
Dell EMC VxRail Appliance
RSA Authentication Manager

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input when processing DNS responses. A remote attacker can send a specially crafted DNS response to the application and perform a denial of service (DoS) attack.

Install updates from vendor's website.

• https://seclists.org/oss-sec/2023/q2/188
• https://github.com/c-ares/c-ares/releases/tag/cares-1_19_1