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TI-2024-25718 Aliases CVE-2024-38477GHSA-phjg-7fch-3c2f

Apache HTTP Server: Crash resulting in Denial of Service in mod_proxy via a malicious request

Priority LOW 39CWE-476Published · 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 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-476.

Summary

null pointer dereference in mod_proxy in Apache HTTP Server 2.4.59 and earlier allows an attacker to crash the server via a malicious request. Users are recommended to upgrade to version 2.4.60, which fixes this issue.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.03153 88th percentileScored 2026-11-07
Fix Fixed Red Hat: 12 advisories

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ApacheApache HTTP Server2.4.0 – 2.4.59—No fix listedCNA
  • Apache HTTP Server VendorApache Affected 2.4.0 – 2.4.59 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*2.4.0 to before 2.4.60VulnerableApache
cpe:2.3:o:netapp:clustered_data_ontap:9.0:*:*:*:*:*:*:*9.0VulnerableNetApp
  • cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:* Versions 2.4.0 to before 2.4.60 Vulnerable ·Apache
  • cpe:2.3:o:netapp:clustered_data_ontap:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·NetApp

Remediation

Red Hat 12 advisories

  • RHSA-2024:5239 Released 2024-08-13 · Red Hat rating Important
    Red Hat JBoss Core Services Apache HTTP Server 2.4.57 SP5 security update
    • Red Hat JBoss Core Services on RHEL 7 Server jbcs-httpd24-httpd-2.4.57-13.el7jbcs, jbcs-httpd24-httpd-devel-2.4.57-13.el7jbcs, jbcs-httpd24-httpd-manual-2.4.57-13.el7jbcs +12
    • Red Hat JBoss Core Services on RHEL 8 jbcs-httpd24-httpd-2.4.57-13.el8jbcs, jbcs-httpd24-httpd-devel-2.4.57-13.el8jbcs, jbcs-httpd24-httpd-manual-2.4.57-13.el8jbcs +12
  • RHSA-2024:5240 Released 2024-08-13 · Red Hat rating Important
    Red Hat JBoss Core Services Apache HTTP Server 2.4.57 SP5 security update
    • Red Hat JBoss Core Services
  • RHSA-2024:4943 Released 2024-07-31 · Red Hat rating Important
    httpd security update
    • Red Hat Enterprise Linux Server (v. 7 ELS) httpd-2.4.6-99.el7_9.2, httpd-devel-2.4.6-99.el7_9.2, httpd-manual-2.4.6-99.el7_9.2 +3
    • Red Hat Enterprise Linux Server Optional (v. 7 ELS) mod_ldap-2.4.6-99.el7_9.2, mod_proxy_html-1:2.4.6-99.el7_9.2
Show 9 more Red Hat advisories
  • RHSA-2024:4938 Released 2024-07-31 · Red Hat rating Important
    httpd security update
    • Red Hat Enterprise Linux Server AUS (v. 7.7) httpd-2.4.6-90.el7_7.4, httpd-devel-2.4.6-90.el7_7.4, httpd-manual-2.4.6-90.el7_7.4 +3
    • Red Hat Enterprise Linux Server Optional AUS (v. 7.7) mod_ldap-2.4.6-90.el7_7.4, mod_proxy_html-1:2.4.6-90.el7_7.4
  • RHSA-2024:4862 Released 2024-07-25 · Red Hat rating Important
    httpd security update
    • Red Hat Enterprise Linux AppStream EUS (v.9.2) httpd-2.4.53-11.el9_2.8, httpd-core-2.4.53-11.el9_2.8, httpd-devel-2.4.53-11.el9_2.8 +8
  • RHSA-2024:4863 Released 2024-07-25 · Red Hat rating Important
    httpd security update
    • Red Hat Enterprise Linux AppStream E4S (v.9.0) httpd-2.4.51-7.el9_0.7, httpd-devel-2.4.51-7.el9_0.7, httpd-filesystem-2.4.51-7.el9_0.7 +7
  • RHSA-2024:4830 Released 2024-07-24 · Red Hat rating Important
    httpd:2.4 security update
    • Red Hat Enterprise Linux AppStream AUS (v.8.4) httpd-2.4.37-39.module+el8.4.0+22127+467cc488.8.src::httpd:2.4, httpd-2.4.37-39.module+el8.4.0+22127+467cc488.8.x86_64::httpd:2.4, httpd-devel-2.4.37-39.module+el8.4.0+22127+467cc488.8.x86_64::httpd:2.4 +11
    • Red Hat Enterprise Linux AppStream E4S (v.8.4) httpd-2.4.37-39.module+el8.4.0+22127+467cc488.8.ppc64le::httpd:2.4, httpd-2.4.37-39.module+el8.4.0+22127+467cc488.8.src::httpd:2.4, httpd-2.4.37-39.module+el8.4.0+22127+467cc488.8.x86_64::httpd:2.4 +20
    • Red Hat Enterprise Linux AppStream TUS (v.8.4) httpd-2.4.37-39.module+el8.4.0+22127+467cc488.8.src::httpd:2.4, httpd-2.4.37-39.module+el8.4.0+22127+467cc488.8.x86_64::httpd:2.4, httpd-devel-2.4.37-39.module+el8.4.0+22127+467cc488.8.x86_64::httpd:2.4 +11
  • RHSA-2024:4827 Released 2024-07-24 · Red Hat rating Important
    httpd:2.4 security update
    • Red Hat Enterprise Linux AppStream AUS (v.8.6) httpd-2.4.37-47.module+el8.6.0+22124+21ed7001.9.src::httpd:2.4, httpd-2.4.37-47.module+el8.6.0+22124+21ed7001.9.x86_64::httpd:2.4, httpd-devel-2.4.37-47.module+el8.6.0+22124+21ed7001.9.x86_64::httpd:2.4 +11
    • Red Hat Enterprise Linux AppStream E4S (v.8.6) httpd-2.4.37-47.module+el8.6.0+22124+21ed7001.9.aarch64::httpd:2.4, httpd-2.4.37-47.module+el8.6.0+22124+21ed7001.9.ppc64le::httpd:2.4, httpd-2.4.37-47.module+el8.6.0+22124+21ed7001.9.s390x::httpd:2.4 +38
    • Red Hat Enterprise Linux AppStream TUS (v.8.6) httpd-2.4.37-47.module+el8.6.0+22124+21ed7001.9.src::httpd:2.4, httpd-2.4.37-47.module+el8.6.0+22124+21ed7001.9.x86_64::httpd:2.4, httpd-devel-2.4.37-47.module+el8.6.0+22124+21ed7001.9.x86_64::httpd:2.4 +11
  • RHSA-2024:4820 Released 2024-07-24 · Red Hat rating Important
    httpd:2.4 security update
    • Red Hat Enterprise Linux AppStream AUS (v. 8.2) httpd-2.4.37-21.module+el8.2.0+22128+68c62a5c.8.src::httpd:2.4, httpd-2.4.37-21.module+el8.2.0+22128+68c62a5c.8.x86_64::httpd:2.4, httpd-devel-2.4.37-21.module+el8.2.0+22128+68c62a5c.8.x86_64::httpd:2.4 +11
  • RHSA-2024:4726 Released 2024-07-23 · Red Hat rating Important
    httpd security update
    • Red Hat Enterprise Linux AppStream (v. 9) httpd-2.4.57-11.el9_4, httpd-core-2.4.57-11.el9_4, httpd-devel-2.4.57-11.el9_4 +8
  • RHSA-2024:4719 Released 2024-07-23 · Red Hat rating Important
    httpd:2.4 security update
    • Red Hat Enterprise Linux AppStream EUS (v.8.8) httpd-2.4.37-56.module+el8.8.0+22079+e03f6970.8.aarch64::httpd:2.4, httpd-2.4.37-56.module+el8.8.0+22079+e03f6970.8.ppc64le::httpd:2.4, httpd-2.4.37-56.module+el8.8.0+22079+e03f6970.8.s390x::httpd:2.4 +38
  • RHSA-2024:4720 Released 2024-07-23 · Red Hat rating Important
    httpd:2.4 security update
    • Red Hat Enterprise Linux AppStream (v. 8) httpd-2.4.37-65.module+el8.10.0+22069+b47f5c72.1.aarch64::httpd:2.4, httpd-2.4.37-65.module+el8.10.0+22069+b47f5c72.1.ppc64le::httpd:2.4, httpd-2.4.37-65.module+el8.10.0+22069+b47f5c72.1.s390x::httpd:2.4 +38

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2024:4720
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2024:4726
Red Hat Enterprise Linux AppStream AUS (v. 8.2)Fixed RHSA-2024:4820
Red Hat Enterprise Linux AppStream AUS (v.8.4)Fixed RHSA-2024:4830
Red Hat Enterprise Linux AppStream AUS (v.8.6)Fixed RHSA-2024:4827
Red Hat Enterprise Linux AppStream E4S (v.8.4)Fixed RHSA-2024:4830
Red Hat Enterprise Linux AppStream E4S (v.8.6)Fixed RHSA-2024:4827
Red Hat Enterprise Linux AppStream E4S (v.9.0)Fixed RHSA-2024:4863
Red Hat Enterprise Linux AppStream EUS (v.8.8)Fixed RHSA-2024:4719
Red Hat Enterprise Linux AppStream EUS (v.9.2)Fixed RHSA-2024:4862
Red Hat Enterprise Linux AppStream TUS (v.8.4)Fixed RHSA-2024:4830
Red Hat Enterprise Linux AppStream TUS (v.8.6)Fixed RHSA-2024:4827
Red Hat Enterprise Linux Server (v. 7 ELS)Fixed RHSA-2024:4943
Red Hat Enterprise Linux Server AUS (v. 7.7)Fixed RHSA-2024:4938
Red Hat Enterprise Linux Server Optional (v. 7 ELS)Fixed RHSA-2024:4943
Red Hat Enterprise Linux Server Optional AUS (v. 7.7)Fixed RHSA-2024:4938
Red Hat JBoss Core ServicesFixed RHSA-2024:5240
Red Hat JBoss Core Services on RHEL 7 ServerFixed RHSA-2024:5239
Red Hat JBoss Core Services on RHEL 8Fixed RHSA-2024:5239
Not affected: 2 products
  • Red Hat Enterprise Linux 10
  • Red Hat Enterprise Linux 6

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-38477
  2. 2026-10-03 Alias added: GHSA-phjg-7fch-3c2f
  3. 2026-10-09 Fix available: RHSA-2024:5240 · Red Hat
  4. 2026-11-05 Fix available: Red Hat JBoss Core Services · Red Hat

References

Advisory 2

  • 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