Vulnerability Monitor

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CVE-2021-44790

A carefully crafted request body can cause a buffer overflow in the mod_lua multipart parser (r:parsebody() called from Lua scripts). The Apache httpd team is not aware of an exploit for the vulnerabilty though it might be possible to craft one. This issue affects Apache HTTP Server 2.4.51 and earlier.

Published

2021-12-20T12:15:07.440

Last Modified

2025-05-01T15:38:06.313

Status

Analyzed

Source

[email protected]

Severity

CVSSv3.1: 9.8 (CRITICAL)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:P/A:P

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: PARTIAL
  • Availability Impact: PARTIAL
Exploitability Score

10.0

Impact Score

6.4

Weaknesses
  • Type: Primary
    CWE-787
  • Type: Secondary
    CWE-787
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application apache http_server < 2.4.52 Yes
Operating System fedoraproject fedora 34 Yes
Operating System fedoraproject fedora 35 Yes
Operating System fedoraproject fedora 36 Yes
Operating System debian debian_linux 10.0 Yes
Operating System debian debian_linux 11.0 Yes
Application tenable tenable.sc < 5.20.0 Yes
Application netapp cloud_backup - Yes
Application oracle communications_element_manager ≤ 9.0 Yes
Application oracle communications_operations_monitor 4.3 Yes
Application oracle communications_operations_monitor 4.4 Yes
Application oracle communications_operations_monitor 5.0 Yes
Application oracle communications_session_report_manager ≤ 9.0 Yes
Application oracle communications_session_route_manager ≤ 9.0 Yes
Application oracle http_server 12.2.1.3.0 Yes
Application oracle http_server 12.2.1.4.0 Yes
Application oracle instantis_enterprisetrack 17.1 Yes
Application oracle instantis_enterprisetrack 17.2 Yes
Application oracle instantis_enterprisetrack 17.3 Yes
Application oracle zfs_storage_appliance_kit 8.8 Yes
Operating System apple mac_os_x 10.15.7 Yes
Operating System apple mac_os_x 10.15.7 Yes
Operating System apple mac_os_x 10.15.7 Yes
Operating System apple mac_os_x 10.15.7 Yes
Operating System apple mac_os_x 10.15.7 Yes
Operating System apple mac_os_x 10.15.7 Yes
Operating System apple mac_os_x 10.15.7 Yes
Operating System apple mac_os_x 10.15.7 Yes
Operating System apple mac_os_x 10.15.7 Yes
Operating System apple mac_os_x 10.15.7 Yes
Operating System apple mac_os_x 10.15.7 Yes
Operating System apple mac_os_x 10.15.7 Yes
Operating System apple macos < 10.15.7 Yes
Operating System apple macos < 11.6.6 Yes
Operating System apple macos < 12.4 Yes
References