{"cve":"CVE-2023-25824","nvd":{"published":"2023-02-23T22:15:11.670","modified":"2026-06-17T05:42:05.600","status":"Modified","description":"Mod_gnutls is a TLS module for Apache HTTPD based on GnuTLS. Versions from 0.9.0 to 0.12.0 (including) did not properly fail blocking read operations on TLS connections when the transport hit timeouts. Instead it entered an endless loop retrying the read operation, consuming CPU resources. This could be exploited for denial of service attacks. If trace level logging was enabled, it would also produce an excessive amount of log output during the loop, consuming disk space. The problem has been fixed in commit d7eec4e598158ab6a98bf505354e84352f9715ec, please update to version 0.12.1. There are no workarounds, users who cannot update should apply the errno fix detailed in the security advisory.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-835"],"references":["https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=942737#25","https://github.com/airtower-luna/mod_gnutls/commit/d7eec4e598158ab6a98bf505354e84352f9715ec","https://github.com/airtower-luna/mod_gnutls/security/advisories/GHSA-6cfv-fvgm-7pc8","https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=942737#25","https://github.com/airtower-luna/mod_gnutls/commit/d7eec4e598158ab6a98bf505354e84352f9715ec"],"products":["mod_gnutls_project:mod_gnutls"],"source":"nvd","synced_at":"2026-10-19T21:37:41.955480748+00:00"},"epss":{"cve":"CVE-2023-25824","score":0.01091,"percentile":0.65412,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}