SUSE update for apache2-mod_auth_openidc

1) Resource exhaustion

EUVDB-ID: #VU86531

Risk: Medium

CVSSv4.0: 6.6 [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/E:U/U:Green]

CVE-ID: CVE-2024-24814

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

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.

Mitigation

Update the affected package apache2-mod_auth_openidc to the latest version.

Vulnerable software versions

Server Applications Module: 15-SP6

SUSE Linux Enterprise Real Time 15: SP6

openSUSE Leap: 15.6

SUSE Linux Enterprise Server for SAP Applications 15: SP6

SUSE Linux Enterprise Server 15: SP6

apache2-mod_auth_openidc-debuginfo: before 2.3.8-150600.16.5.1

apache2-mod_auth_openidc-debugsource: before 2.3.8-150600.16.5.1

apache2-mod_auth_openidc: before 2.3.8-150600.16.5.1

CPE2.3

• cpe:2.3:o:suse:server_applications_module:15-SP6:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_real_time_15:SP6:*:*:*:*:*:*:*
• cpe:2.3:o:suse:opensuse_leap:15.6:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_15:SP6:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_15:SP6:*:*:*:*:*:*:*
• cpe:2.3:o:suse:apache2-mod_auth_openidc-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:apache2-mod_auth_openidc-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:apache2-mod_auth_openidc:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2024/suse-su-20242299-1/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.