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TI-2017-05304 Aliases CVE-2017-7668GHSA-mcc7-rcr3-2rgr

Out-of-bounds read in Apache HTTP Server

Priority HIGH 66CWE-126Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-126 and the CVSS impact.

Summary

The HTTP strict parsing changes added in Apache httpd 2.2.32 and 2.4.24 introduced a bug in token list parsing, which allows ap_find_token() to search past the end of its input string. By maliciously crafting a sequence of request headers, an attacker may be able to cause a segmentation fault, or to force ap_find_token() to return an incorrect value.

Why it matters now

EPSS 0.57472 99th percentileScored 2026-11-07
Fix Fixed Red Hat: 4 advisories

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
ApacheApache HTTP Server2.2.32; 2.4.24, 2.4.25—No fix listedCNA
  • Apache HTTP Server VendorApache Affected 2.2.32; 2.4.24, 2.4.25 Fixed in — No fix listed CNA

CPE configurations NVD · 37

CPEVersionsRoleVendor
cpe:2.3:a:apache:http_server:2.2.32:*:*:*:*:*:*:*2.2.32VulnerableApache
cpe:2.3:a:apache:http_server:2.4.24:*:*:*:*:*:*:*2.4.24VulnerableApache
cpe:2.3:a:apache:http_server:2.4.25:*:*:*:*:*:*:*2.4.25VulnerableApache
cpe:2.3:a:netapp:clustered_data_ontap:-:*:*:*:*:*:*:*not specified by NVDVulnerableNetApp
cpe:2.3:a:netapp:oncommand_unified_manager:-:*:*:*:*:7-mode:*:*not specified by NVDVulnerableNetApp
cpe:2.3:a:netapp:storagegrid:-:*:*:*:*:*:*:*not specified by NVDVulnerableNetApp
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_eus:7.2:*:*:*:*:*:*:*7.2VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_eus:7.3:*:*:*:*:*:*:*7.3VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_eus:7.4:*:*:*:*:*:*:*7.4VulnerableRed Hat
  • cpe:2.3:a:apache:http_server:2.2.32:*:*:*:*:*:*:* Versions 2.2.32 Vulnerable ·Apache
  • cpe:2.3:a:apache:http_server:2.4.24:*:*:*:*:*:*:* Versions 2.4.24 Vulnerable ·Apache
  • cpe:2.3:a:apache:http_server:2.4.25:*:*:*:*:*:*:* Versions 2.4.25 Vulnerable ·Apache
  • cpe:2.3:a:netapp:clustered_data_ontap:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
  • cpe:2.3:a:netapp:oncommand_unified_manager:-:*:*:*:*:7-mode:*:* Versions not specified by NVD Vulnerable ·NetApp
  • cpe:2.3:a:netapp:storagegrid:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
  • cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_eus:7.2:*:*:*:*:*:*:* Versions 7.2 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_eus:7.3:*:*:*:*:*:*:* Versions 7.3 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_eus:7.4:*:*:*:*:*:*:* Versions 7.4 Vulnerable ·Red Hat
Show 27 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:redhat:enterprise_linux_eus:7.5:*:*:*:*:*:*:*7.5VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_eus:7.6:*:*:*:*:*:*:*7.6VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_eus:7.7:*:*:*:*:*:*:*7.7VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.2:*:*:*:*:*:*:*7.2VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.3:*:*:*:*:*:*:*7.3VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:*7.4VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:*7.6VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.7:*:*:*:*:*:*:*7.7VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.2:*:*:*:*:*:*:*7.2VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.3:*:*:*:*:*:*:*7.3VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.4:*:*:*:*:*:*:*7.4VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:*7.6VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.7:*:*:*:*:*:*:*7.7VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*8.0VulnerableDebian
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*9.0VulnerableDebian
cpe:2.3:a:oracle:secure_global_desktop:5.3:*:*:*:*:*:*:*5.3VulnerableOracle
cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*before 10.13.1; 10.11.0 to before 10.11.6; 10.12.0 to before 10.12.6VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.11.6:-:*:*:*:*:*:*10.11.6VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.11.6:security_update_2016-001:*:*:*:*:*:*10.11.6 security_update_2016-001VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.11.6:security_update_2016-002:*:*:*:*:*:*10.11.6 security_update_2016-002VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.11.6:security_update_2016-003:*:*:*:*:*:*10.11.6 security_update_2016-003VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.11.6:security_update_2017-001:*:*:*:*:*:*10.11.6 security_update_2017-001VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.11.6:security_update_2017-002:*:*:*:*:*:*10.11.6 security_update_2017-002VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.11.6:security_update_2017-003:*:*:*:*:*:*10.11.6 security_update_2017-003VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.12.6:-:*:*:*:*:*:*10.12.6VulnerableApple
  • cpe:2.3:o:redhat:enterprise_linux_eus:7.5:*:*:*:*:*:*:* Versions 7.5 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_eus:7.6:*:*:*:*:*:*:* Versions 7.6 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_eus:7.7:*:*:*:*:*:*:* Versions 7.7 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_aus:7.2:*:*:*:*:*:*:* Versions 7.2 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_aus:7.3:*:*:*:*:*:*:* Versions 7.3 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:* Versions 7.4 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:* Versions 7.6 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_aus:7.7:*:*:*:*:*:*:* Versions 7.7 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_tus:7.2:*:*:*:*:*:*:* Versions 7.2 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_tus:7.3:*:*:*:*:*:*:* Versions 7.3 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_tus:7.4:*:*:*:*:*:*:* Versions 7.4 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:* Versions 7.6 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_tus:7.7:*:*:*:*:*:*:* Versions 7.7 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
  • cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
  • cpe:2.3:a:oracle:secure_global_desktop:5.3:*:*:*:*:*:*:* Versions 5.3 Vulnerable ·Oracle
  • cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* Versions before 10.13.1; 10.11.0 to before 10.11.6; 10.12.0 to before 10.12.6 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.11.6:-:*:*:*:*:*:* Versions 10.11.6 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.11.6:security_update_2016-001:*:*:*:*:*:* Versions 10.11.6 security_update_2016-001 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.11.6:security_update_2016-002:*:*:*:*:*:* Versions 10.11.6 security_update_2016-002 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.11.6:security_update_2016-003:*:*:*:*:*:* Versions 10.11.6 security_update_2016-003 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.11.6:security_update_2017-001:*:*:*:*:*:* Versions 10.11.6 security_update_2017-001 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.11.6:security_update_2017-002:*:*:*:*:*:* Versions 10.11.6 security_update_2017-002 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.11.6:security_update_2017-003:*:*:*:*:*:* Versions 10.11.6 security_update_2017-003 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.12.6:-:*:*:*:*:*:* Versions 10.12.6 Vulnerable ·Apple

Remediation

Red Hat 4 advisories

  • RHSA-2017:3194 Released 2017-11-13 · Red Hat rating Important
    httpd security update
    • Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.3) httpd-2.4.6-45.el7_3.5, httpd-devel-2.4.6-45.el7_3.5, httpd-manual-2.4.6-45.el7_3.5 +5
    • Red Hat Enterprise Linux Server EUS (v. 7.3) httpd-2.4.6-45.el7_3.5, httpd-devel-2.4.6-45.el7_3.5, httpd-manual-2.4.6-45.el7_3.5 +2
    • Red Hat Enterprise Linux Server Optional EUS (v. 7.3) mod_ldap-2.4.6-45.el7_3.5, mod_proxy_html-1:2.4.6-45.el7_3.5, mod_session-2.4.6-45.el7_3.5
  • RHSA-2017:3193 Released 2017-11-13 · Red Hat rating Important
    httpd security update
    • Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.2) httpd-2.4.6-40.el7_2.6, httpd-devel-2.4.6-40.el7_2.6, httpd-manual-2.4.6-40.el7_2.6 +5
    • Red Hat Enterprise Linux Server EUS (v. 7.2) httpd-2.4.6-40.el7_2.6, httpd-devel-2.4.6-40.el7_2.6, httpd-manual-2.4.6-40.el7_2.6 +2
    • Red Hat Enterprise Linux Server Optional EUS (v. 7.2) mod_ldap-2.4.6-40.el7_2.6, mod_proxy_html-1:2.4.6-40.el7_2.6, mod_session-2.4.6-40.el7_2.6
  • RHSA-2017:2483 Released 2017-08-16 · Red Hat rating Important
    httpd24-httpd security update
    • Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 6) httpd24-httpd-2.4.25-9.el6.1, httpd24-httpd-devel-2.4.25-9.el6.1, httpd24-httpd-manual-2.4.25-9.el6.1 +5
    • Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) httpd24-httpd-2.4.25-9.el7.1, httpd24-httpd-devel-2.4.25-9.el7.1, httpd24-httpd-manual-2.4.25-9.el7.1 +5
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.7) httpd24-httpd-2.4.25-9.el6.1, httpd24-httpd-devel-2.4.25-9.el6.1, httpd24-httpd-manual-2.4.25-9.el6.1 +5
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.3) httpd24-httpd-2.4.25-9.el7.1, httpd24-httpd-devel-2.4.25-9.el7.1, httpd24-httpd-manual-2.4.25-9.el7.1 +5
    • Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 6) httpd24-httpd-2.4.25-9.el6.1, httpd24-httpd-devel-2.4.25-9.el6.1, httpd24-httpd-manual-2.4.25-9.el6.1 +5
    • Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) httpd24-httpd-2.4.25-9.el7.1, httpd24-httpd-devel-2.4.25-9.el7.1, httpd24-httpd-manual-2.4.25-9.el7.1 +5
Show 1 more Red Hat advisories
  • RHSA-2017:2479 Released 2017-08-15 · Red Hat rating Important
    httpd security update
    • Red Hat Enterprise Linux Client Optional (v. 7) httpd-2.4.6-67.el7_4.2, httpd-devel-2.4.6-67.el7_4.2, httpd-manual-2.4.6-67.el7_4.2 +5
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) httpd-2.4.6-67.el7_4.2, httpd-devel-2.4.6-67.el7_4.2, httpd-manual-2.4.6-67.el7_4.2 +5
    • Red Hat Enterprise Linux Server (v. 7) httpd-2.4.6-67.el7_4.2, httpd-devel-2.4.6-67.el7_4.2, httpd-manual-2.4.6-67.el7_4.2 +3
    • Red Hat Enterprise Linux Server Optional (v. 7) mod_ldap-2.4.6-67.el7_4.2, mod_proxy_html-1:2.4.6-67.el7_4.2
    • Red Hat Enterprise Linux Workstation (v. 7) httpd-2.4.6-67.el7_4.2, httpd-devel-2.4.6-67.el7_4.2, httpd-manual-2.4.6-67.el7_4.2 +3
    • Red Hat Enterprise Linux Workstation Optional (v. 7) mod_ldap-2.4.6-67.el7_4.2, mod_proxy_html-1:2.4.6-67.el7_4.2

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    Apache HTTP Server — DSA-3896

    4 records Highest priority Priority HIGH 2 HIGH, 2 MEDIUM

    Other records, highest priority first

    • TI-2017-05315 Memory corruption in Apache HTTP ServerPriority HIGH 69
    • TI-2017-02384 NULL pointer dereference in Apache HTTP ServerPriority MEDIUM 61
    • TI-2017-02383 Improper authentication in Apache HTTP ServerPriority MEDIUM 61
    Show all 4 records → Advisory →
  • Advisory ·

    Apache HTTP Server — RHSA-2017:2479

    4 records Highest priority Priority HIGH 2 HIGH, 2 MEDIUM

    Other records, highest priority first

    • TI-2017-05315 Memory corruption in Apache HTTP ServerPriority HIGH 69
    • TI-2017-02384 NULL pointer dereference in Apache HTTP ServerPriority MEDIUM 61
    • TI-2017-02383 Improper authentication in Apache HTTP ServerPriority MEDIUM 61
    Show all 4 records → Advisory →

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2017:2479
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2017:2479
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.2)Fixed RHSA-2017:3193
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.3)Fixed RHSA-2017:3194
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2017:2479
Red Hat Enterprise Linux Server EUS (v. 7.2)Fixed RHSA-2017:3193
Red Hat Enterprise Linux Server EUS (v. 7.3)Fixed RHSA-2017:3194
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2017:2479
Red Hat Enterprise Linux Server Optional EUS (v. 7.2)Fixed RHSA-2017:3193
Red Hat Enterprise Linux Server Optional EUS (v. 7.3)Fixed RHSA-2017:3194
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2017:2479
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2017:2479
Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2017:2483
Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2017:2483
Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.7)Fixed RHSA-2017:2483
Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.3)Fixed RHSA-2017:2483
Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 6)Fixed RHSA-2017:2483
Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2017:2483
Not affected: 8 products
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6
  • Red Hat JBoss Core Services
  • Red Hat JBoss Enterprise Application Platform 5
  • Red Hat JBoss Enterprise Application Platform 6
  • Red Hat JBoss Enterprise Web Server 1
  • Red Hat JBoss Enterprise Web Server 2
  • Red Hat JBoss Enterprise Web Server 3

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-7668
  2. 2026-10-03 Alias added: GHSA-mcc7-rcr3-2rgr

References

Patch 1

Advisory 11

Other 21

  • TI-2021-18535 Path Traversal and Remote Code Execution in Apache HTTP Server 2.4.49 and 2.4.50 (incomplete fix of CVE-2021-41773) KEVCVSS 3.1CRITICAL 9.8
  • TI-2021-18417 Path traversal and file disclosure vulnerability in Apache HTTP Server 2.4.49 KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-25716 Apache HTTP Server weakness in mod_rewrite when first segment of substitution matches filesystem path. KEVCVSS 3.1CRITICAL 9.1
  • TI-2021-17490 mod_proxy SSRF KEVCVSS 3.1CRITICAL 9.0
  • TI-2019-00184 Use after free in Apache HTTP Server KEVCVSS 3.1HIGH 7.8
  • TI-2009-03392 The TLS protocol, and the SSL protocol 3.0 and possibly earlier, as used in Microsoft… CVSS 3.1CRITICAL 9.8
See all 349 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences