Resource exhaustion in mod_auth_openidc - CVE-2024-24814

Vulnerability identifier: #VU86531

CSH Severity: Medium

CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2024-24814

CWE-ID: CWE-400

Exploitation vector: Remote access

Exploit availability: No public exploit available

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

The vulnerability exists due to application does not properly control consumption of internal resources when handling a vaery large mod_auth_openidc_session_chunks cookie value. A remote attacker can set the cookie to value 99999999 or higher, trigger resource exhaustion and perform a denial of service (DoS) attack.

mod_auth_openidc
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise High Performance Computing LTSS 15
SUSE Linux Enterprise High Performance Computing ESPOS 15
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise High Performance Computing 12
SUSE Manager Server
SUSE Manager Retail Branch Server
SUSE Manager Proxy
SUSE Enterprise Storage
Anolis OS
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for x86_64
SUSE Linux Enterprise Server 15 SP2 LTSS
SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS
SUSE Linux Enterprise Server 15 SP3 LTSS
SUSE Linux Enterprise Server 15 SP4 LTSS
Server Applications Module
openSUSE Leap
openEuler
Fedora
cjose-devel
cjose
apache2-mod_auth_openidc
apache2-mod_auth_openidc-debuginfo
apache2-mod_auth_openidc-debugsource
mod_auth_openidc
mod_auth_openidc (Red Hat package)
mod_auth_openidc-debuginfo
mod_auth_openidc-debugsource
IBM Cloud Pak for Watson AIOps

Install updates from vendor's website.

mod_auth_openidc - update to 2.4.15.2
cjose-devel - update to 0.6.1-4
cjose - update to 0.6.1-4
apache2-mod_auth_openidc - addressed in versions 2.3.8-150100.3.28.1, 2.3.8-150600.16.5.1, 2.4.0-7.12.2
apache2-mod_auth_openidc-debuginfo - addressed in versions 2.3.8-150100.3.28.1, 2.3.8-150600.16.5.1, 2.4.0-7.12.2
apache2-mod_auth_openidc-debugsource - addressed in versions 2.3.8-150100.3.28.1, 2.3.8-150600.16.5.1, 2.4.0-7.12.2
mod_auth_openidc - update to 2.4.9.4-6
mod_auth_openidc (Red Hat package) - update to 2.4.10-1.el9
mod_auth_openidc-debuginfo - update to 2.4.15.3-1
mod_auth_openidc - update to 2.4.15.3-1
mod_auth_openidc-debugsource - update to 2.4.15.3-1
mod_auth_openidc - update to 2.4.15.3-1.fc39
IBM Cloud Pak for Watson AIOps - update to 4.8.0

• https://github.com/OpenIDC/mod_auth_openidc/security/advisories/GHSA-hxr6-w4gc-7vvv
• https://github.com/OpenIDC/mod_auth_openidc/commit/4022c12f314bd89d127d1be008b1a80a08e1203d

• Remote denial of service in mod_auth_openidc
• Fedora 39 update for mod_auth_openidc
• SUSE update for apache2-mod_auth_openidc
• SUSE update for apache2-mod_auth_openidc
• openEuler 22.03 LTS update for mod_auth_openidc
• openEuler 22.03 LTS SP1 update for mod_auth_openidc
• openEuler 22.03 LTS SP2 update for mod_auth_openidc
• openEuler 22.03 LTS SP3 update for mod_auth_openidc
• SUSE update for apache2-mod_auth_openidc
• Red Hat Enterprise Linux 9 update for mod_auth_openidc
• Multiple vulnerabilities in IBM Cloud Pak for AIOps
• Anolis OS update for mod_auth_openidc:2.3 module