NULL pointer dereference in Openidc Mod Auth
CVE-2023-28625
mod_auth_openidc is an authentication and authorization module for the Apache 2.x HTTP server that implements the OpenID Connect Relying Party functionality. In versions 2.0.0 through 2.4.13.1, when `OIDCStripCookies` is set and a crafted cookie supplied, a NULL pointer dereference would occur, resulting in a segmentation fault. This could be used in a Denial-of-Service attack and thus presents an availability risk. Version 2.4.13.2 contains a patch for this issue. As a workaround, avoid using `OIDCStripCookies`.
EPSS: 0.013 (68.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Openidc Mod_auth_openidc — versions >= 2.0.0, < 2.4.13.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Third Party Advisory, x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC, Release Notes)
- security-advisories@github.com (Third Party Advisory)
- security-advisories@github.com (Third Party Advisory)
- security-advisories@github.com (Release Notes)
Frequently asked questions
- What is CVE-2023-28625?
- CVE-2023-28625 is a high-severity vulnerability in Openidc Mod Auth, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2023-04-03.
- How severe is CVE-2023-28625?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2023-28625 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.