NULL pointer dereference in mod_auth_openidc - CVE-2023-28625

Vulnerability identifier: #VU74352

CSH Severity: Medium

CVSS v4: 6.9 [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]

CVE-ID: CVE-2023-28625

CWE-ID: CWE-476

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 a NULL pointer dereference error when "OIDCStripCookies" is set. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.

mod_auth_openidc
Debian Linux
Oracle Linux
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 ESPOS 15
SUSE Linux Enterprise High Performance Computing LTSS 15
SUSE Linux Enterprise Real Time 15
SUSE CaaS Platform
SUSE Manager Proxy
SUSE Manager Retail Branch Server
SUSE Manager Server
SUSE Enterprise Storage
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for ARM 64
Anolis OS
SUSE Linux Enterprise Server 15 SP1 LTSS
SUSE Linux Enterprise High Performance Computing 15 SP1 LTSS
SUSE Linux Enterprise Server 15 SP2 LTSS
SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS
SUSE Linux Enterprise Server 15 SP3 LTSS
Server Applications Module
openSUSE Leap
openEuler
Fedora
cjose
cjose-devel
apache2-mod_auth_openidc-debuginfo
apache2-mod_auth_openidc-debugsource
apache2-mod_auth_openidc
libapache2-mod-auth-openidc (Debian package)
mod_auth_openidc (Red Hat package)
mod_auth_openidc
mod_auth_openidc-debugsource
mod_auth_openidc-debuginfo

Install update from vendor's website.

mod_auth_openidc - update to 2.4.13.2
cjose - update to 0.6.1-4
cjose-devel - update to 0.6.1-4
apache2-mod_auth_openidc-debuginfo - update to 2.3.8-150100.3.25.1
apache2-mod_auth_openidc-debugsource - update to 2.3.8-150100.3.25.1
apache2-mod_auth_openidc - update to 2.3.8-150100.3.25.1
libapache2-mod-auth-openidc (Debian package) - update to 2.4.9.4-0+deb11u3
mod_auth_openidc (Red Hat package) - update to 2.4.9.4-4.el9
mod_auth_openidc - update to 2.4.9.4-5
mod_auth_openidc - update to 2.4.13.2-1
mod_auth_openidc-debugsource - update to 2.4.13.2-1
mod_auth_openidc-debuginfo - update to 2.4.13.2-1
mod_auth_openidc - update to 2.4.13.2-1.fc38

• https://github.com/OpenIDC/mod_auth_openidc/releases/tag/v2.4.13.2
• https://github.com/OpenIDC/mod_auth_openidc/commit/c0e1edac3c4c19988ccdc7713d7aebfce6ff916a
• https://github.com/OpenIDC/mod_auth_openidc/security/advisories/GHSA-f5xw-rvfr-24qr
• https://github.com/OpenIDC/mod_auth_openidc/blame/3f11976dab56af0a46a7dddb7a275cc16d6eb726/src/mod_auth_openidc.c#L178-L179

• Denial of service in mod_auth_openidc
• SUSE update for apache2-mod_auth_openidc
• Debian update for libapache2-mod-auth-openidc
• Fedora 38 update for mod_auth_openidc
• Red Hat Enterprise Linux 9 update for mod_auth_openidc
• Multiple vulnerabilities in Oracle Linux
• Red Hat Enterprise Linux 8 update for the mod_auth_openidc:2.3 module
• openEuler 22.03 LTS update for mod_auth_openidc
• openEuler 22.03 LTS SP1 update for mod_auth_openidc
• Anolis OS update for mod_auth_openidc:2.3 module