Stack-based Buffer Overflow Affecting airtower-luna/mod_gnutls package, versions [,0.12.3)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published25 Mar 2026
- disclosed24 Mar 2026
- creditIreneusz Pastusiak
Introduced: 24 Mar 2026
CVE-2026-33307 (opens in a new tab)How to fix?
Upgrade airtower-luna/mod_gnutls to version 0.12.3 or higher.
Overview
Affected versions of this package are vulnerable to Stack-based Buffer Overflow via the mgs_cert_verify function in the gnutls_hooks.c file. An attacker can cause a segmentation fault and potentially disrupt service by sending a client certificate chain that exceeds the expected array size.
Note: This is only exploitable if client certificate verification is enabled in the server configuration.