What’s Vulnerable › Vulnerabilities

CVE-2024-8096: OCSP stapling bypass with GnuTLS

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2024-09-11 · updated 2026-10-15
• Weakness: CWE-295

Description

When curl is told to use the Certificate Status Request TLS extension, often referred to as OCSP stapling, to verify that the server certificate is valid, it might fail to detect some OCSP problems and instead wrongly consider the response as fine. If the returned status reports another error than 'revoked' (like for example 'unauthorized') it is not treated as a bad certficate.

Affected products

• Debian Linux: 11.0
• curl: from 7.41.0 before 8.10.0 — fixed in 8.10.0
• Active IQ Unified Manager for VMware vSphere, Linux, and Microsoft Windows: all versions
• NetApp Bootstrap Os: all versions
• NetApp H300S Firmware: all versions
• NetApp H410S Firmware: all versions
• NetApp H500S Firmware: all versions
• NetApp H700S Firmware: all versions
• NetApp ONTAP Select Deploy administration utility: all versions
• NetApp Ontap Tools: 10

How to fix

Upgrade to a fixed version: curl 8.10.0. Check the vendor advisory for mitigations.

References

• https://curl.se/docs/CVE-2024-8096.html
• https://curl.se/docs/CVE-2024-8096.json
• https://hackerone.com/reports/2669852
• http://www.openwall.com/lists/oss-security/2024/09/11/1
• https://lists.debian.org/debian-lts-announce/2024/11/msg00008.html
• https://security.netapp.com/advisory/ntap-20241011-0005/
• https://cert-portal.siemens.com/productcert/html/ssa-089022.html
• https://cert-portal.siemens.com/productcert/html/ssa-398330.html

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