CVE-2023-25824

Summary

CVECVE-2023-25824
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2023-02-23 22:15:00 UTC
Updated2023-11-07 04:09:00 UTC
DescriptionMod_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.

Risk And Classification

Problem Types: CWE-835

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Mod Gnutls Project Mod Gnutls All All All All
Application Mod Gnutls Project Mod Gnutls All All All All

References

ReferenceSourceLinkTags
#942737 - libapache2-mod-gnutls: mod_gnutls consumes 100% cpu - Debian Bug report logs MISC bugs.debian.org
Fix loop in blocking read on transport timeout · airtower-luna/mod_gnutls@d7eec4e · GitHub MISC github.com
Infinite Loop on request read timeout in mod_gnutls · Advisory · airtower-luna/mod_gnutls · GitHub MISC github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 691146 Free Berkeley Software Distribution (FreeBSD) Security Update for mod_gnutls (e8b20517-dbb6-11ed-bf28-589cfc0f81b0)

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