CVE-2024-24814: debian debian_linux Uncontrolled Resource Consumption
Vulnerability summary
CVE-2024-24814 is a high (CVSS 7.5) Uncontrolled Resource Consumption vulnerability in debian debian_linux. EPSS estimates a 1.25% chance of exploitation in the next 30 days, higher than 68.9% of scored vulnerabilities. 1 public exploit is recorded.
Advisory lineage
Upstream 0 · Downstream 1 · Related 1Timeline
- 13-02-2024PublishedVulnerability first disclosed.
- 10-04-2025Last modifiedVulnerability information updated.
Description
mod_auth_openidc is an OpenID Certified™ authentication and authorization module for the Apache 2.x HTTP server that implements the OpenID Connect Relying Party functionality. In affected versions missing input validation on mod_auth_openidc_session_chunks cookie value makes the server vulnerable to a denial of service (DoS) attack. An internal security audit has been conducted and the reviewers found that if they manipulated the value of the mod_auth_openidc_session_chunks cookie to a very large integer, like 99999999, the server struggles with the request for a long time and finally gets back with a 500 error. Making a few requests of this kind caused our server to become unresponsive. Attackers can craft requests that would make the server work very hard (and possibly become unresponsive) and/or crash with minimal effort. This issue has been addressed in version 2.4.15.2. Users are advised to upgrade. There are no known workarounds for this vulnerability.
CVSS metrics
5 scores · 5 sources · 1 version- OSV · Red hatEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVDNIST7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
1.25%
Chance of exploitation in the next 30 days
Percentile
69%
Versus all other CVEs
30-day change
0.00 pp
From 1.25% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundMod Auth Openidc
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Suse17 products
- apache2-mod_auth_openidc&distro=SUSE Enterprise Storage 7.1< 2.3.8-150100.3.28.1
- apache2-mod_auth_openidc&distro=SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS< 2.3.8-150100.3.28.1
- apache2-mod_auth_openidc&distro=SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS< 2.3.8-150100.3.28.1
- apache2-mod_auth_openidc&distro=SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS< 2.3.8-150100.3.28.1
- apache2-mod_auth_openidc&distro=SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS< 2.3.8-150100.3.28.1
Redhat7 products
- cjose< 0:0.6.1-4.module+el8.10.0+21813+b5444eb8
- cjose-debuginfo< 0:0.6.1-4.module+el8.10.0+21813+b5444eb8
- cjose-debugsource< 0:0.6.1-4.module+el8.10.0+21813+b5444eb8
- cjose-devel< 0:0.6.1-4.module+el8.10.0+21813+b5444eb8
- mod_auth_openidc< 0:2.4.9.4-6.module+el8.10.0+21813+b5444eb8 | < 0:2.4.10-1.el9
Opensuse3 products
- apache2-mod_auth_openidc&distro=openSUSE Leap 15.5< 2.3.8-150100.3.28.1
- apache2-mod_auth_openidc&distro=openSUSE Leap 15.6< 2.3.8-150600.16.5.1
- apache2-mod_auth_openidc&distro=openSUSE Tumbleweed< 2.4.15.3-1.1
Debian2 products
- libapache2-mod-auth-openidc< 2.4.12.3-2+deb12u1 | < 2.4.15.7-1 | < 2.3.10.2-1+deb10u4
- debian_linuxEOL10.0
Fedoraproject1 product
- fedoraEOL39
Mageia1 product
- apache-mod_auth_openidc< 2.4.13.2-1.1.mga9
Openidc1 product
- mod_auth_openidc≥ 2.0.0, < 2.4.15.2 | ≥ 2.0.0, ≤ 2.4.15.1
Ubuntu1 product
- libapache2-mod-auth-openidcAll versions (No fix recorded)
8 vendors · 33 products
References
26 links- github.com/OpenIDC/mod_auth_openidc/security/advisories/GHSA-hxr6-w4gc-7vvvX Refsource CONFIRMAdvisoryREPORTExploitVendor Advisory
- github.com/OpenIDC/mod_auth_openidc/commit/4022c12f314bd89d127d1be008b1a80a08e1203dX Refsource MISCPatch