Read the docs
TI-2002-00631 Aliases CVE-2002-0653GHSA-chfp-36fq-v6g3

Off-by-one buffer overflow in the ssl_compat_directive function, as called by the…

Priority LOW 36CWE-193Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-193 and the CVSS impact.

Summary

Off-by-one buffer overflow in the ssl_compat_directive function, as called by the rewrite_command hook for mod_ssl Apache module 2.8.9 and earlier, allows local users to execute arbitrary code as the Apache server user via .htaccess files with long entries.

Why it matters now

EPSS 0.01138 66th percentileScored 2026-11-07
Fix Fixed Red Hat: 6 advisories

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:modssl:mod_ssl:*:*:*:*:*:*:*:*up to 2.8.9VulnerableModssl
  • cpe:2.3:a:modssl:mod_ssl:*:*:*:*:*:*:*:* Versions up to 2.8.9 Vulnerable ·Modssl

Remediation

Red Hat 6 advisories

  • RHSA-2003:106 Released 2003-04-22 · Red Hat rating Important
    : : : Updated apache and mod_ssl packages available
    • Red Hat Linux 7.1
  • RHSA-2002:146 Released 2002-08-01 · Red Hat rating Moderate
    mod_ssl security update for Stronghold
    • Stronghold 4 for Red Hat Enterprise Linux
  • RHSA-2002:164 Released 2002-07-31 · Red Hat rating Critical
    openssl, mm, mod_ssl security update for Stronghold
    • Red Hat Stronghold 3
Show 3 more Red Hat advisories
  • RHSA-2002:135 Released 2002-07-24 · Red Hat rating Moderate
    : : : Updated secureweb packages available
    • Red Hat Secure Web Server 3.2
  • RHSA-2002:136 Released 2002-07-16 · Red Hat rating Moderate
    mod_ssl security update
    • Red Hat Enterprise Linux AS (Advanced Server) version 2.1
  • RHSA-2002:134 Released 2002-07-16 · Red Hat rating Moderate
    : Updated mod_ssl packages available
    • Red Hat Linux 7.0
    • Red Hat Linux 7.1
    • Red Hat Linux 7.2
    • Red Hat Linux 7.3

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux AS (Advanced Server) version 2.1 Fixed RHSA-2002:136
Red Hat Linux 7.0Fixed RHSA-2002:134
Red Hat Linux 7.1Fixed RHSA-2002:134
Red Hat Linux 7.2Fixed RHSA-2002:134
Red Hat Linux 7.3Fixed RHSA-2002:134
Red Hat Secure Web Server 3.2Fixed RHSA-2002:135
Red Hat Stronghold 3Fixed RHSA-2002:164
Stronghold 4 for Red Hat Enterprise LinuxFixed RHSA-2002:146

Timeline

  1. 2026-10-02 Threatist record created from CVE-2002-0653
  2. 2026-10-03 Alias added: GHSA-chfp-36fq-v6g3

References

Sources