CVEvulnerability

CVE-2021-44224

8.2 HIGH Published 2021-12-20 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-12-20
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
8.2 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
CVSS 2.0 ([email protected])
6.4 MEDIUM — AV:N/AC:L/Au:N/C:N/I:P/A:P
Weaknesses
CWE-476

Description

A crafted URI sent to httpd configured as a forward proxy (ProxyRequests on) can cause a crash (NULL pointer dereference) or, for configurations mixing forward and reverse proxy declarations, can allow for requests to be directed to a declared Unix Domain Socket endpoint (Server Side Request Forgery). This issue affects Apache HTTP Server 2.4.7 up to 2.4.51 (included).

Affected configurations

• apache http server (>= 2.4.7 < 2.4.52) • fedoraproject fedora 34 • fedoraproject fedora 35 • fedoraproject fedora 36 • debian debian linux 10.0 • debian debian linux 11.0 • tenable tenable.sc (>= 5.14.0 < 5.20.0) • tenable tenable.sc (>= 5.16.0 < 202201.1) • oracle communications element manager (< 9.0) • oracle communications operations monitor 4.0 • oracle communications operations monitor 4.3 • oracle communications operations monitor 4.4 • oracle communications operations monitor 5.0 • oracle communications session report manager (< 9.0) • oracle communications session route manager (< 9.0) • oracle http server • oracle http server 12.2.1.3.0 • oracle http server 12.2.1.4.0 • oracle instantis enterprisetrack 17.1 • oracle instantis enterprisetrack 17.2 • oracle instantis enterprisetrack 17.3 • apple mac os x 10.15.7 • apple macos (< 10.15.7) • apple macos (>= 11.0 < 11.6.6) • apple macos (>= 12.0.0 < 12.4)

Related

Weakness · CWE (1)

  • CWE-476 NULL Pointer Dereference weakness

References