Vulnerability in Airtower-Luna Mod Gnutls
CVE-2023-25824
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.
EPSS: 0.011 (62.0th 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
- Airtower-luna Mod_gnutls — versions >= 0.9.0, < 0.12.1
- Mod_gnutls_project Mod_gnutls
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Patch, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Exploit, Patch, Mailing List, Third Party Advisory, x_refsource_MISC, Mitigation, Issue Tracking)
Frequently asked questions
- What is CVE-2023-25824?
- CVE-2023-25824 is a high-severity vulnerability in Airtower-Luna Mod Gnutls, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 7.5/10. Published 2023-02-23.
- How severe is CVE-2023-25824?
- High severity. CVSS v3 base score is 7.5 out of 10.