CVE-2021-44224

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).
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
8.2 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
apacheCNA
---
---
CVEADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 93%
VendorProductVersion
apachehttp_server
2.4.7 ≤
𝑥
< 2.4.52
debiandebian_linux
10.0
debiandebian_linux
11.0
tenabletenable.sc
5.14.0 ≤
𝑥
< 5.20.0
tenabletenable.sc
5.16.0 ≤
𝑥
< 202201.1
oraclecommunications_element_manager
𝑥
< 9.0
oraclecommunications_operations_monitor
4.0
oraclecommunications_operations_monitor
4.3
oraclecommunications_operations_monitor
4.4
oraclecommunications_operations_monitor
5.0
oraclecommunications_session_report_manager
𝑥
< 9.0
oraclecommunications_session_route_manager
𝑥
< 9.0
oraclehttp_server
-
oraclehttp_server
12.2.1.3.0
oraclehttp_server
12.2.1.4.0
oracleinstantis_enterprisetrack
17.1
oracleinstantis_enterprisetrack
17.2
oracleinstantis_enterprisetrack
17.3
applemac_os_x
10.15.7
applemac_os_x
10.15.7:security_update_2020-001
applemac_os_x
10.15.7:security_update_2021-001
applemac_os_x
10.15.7:security_update_2021-002
applemac_os_x
10.15.7:security_update_2021-003
applemac_os_x
10.15.7:security_update_2021-004
applemac_os_x
10.15.7:security_update_2021-005
applemac_os_x
10.15.7:security_update_2021-006
applemac_os_x
10.15.7:security_update_2021-007
applemac_os_x
10.15.7:security_update_2021-008
applemac_os_x
10.15.7:security_update_2022-001
applemac_os_x
10.15.7:security_update_2022-002
applemac_os_x
10.15.7:security_update_2022-003
applemacos
𝑥
< 10.15.7
applemacos
11.0 ≤
𝑥
< 11.6.6
applemacos
12.0.0 ≤
𝑥
< 12.4
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
apache2
bullseye
2.4.62-1~deb11u1
fixed
bullseye (security)
2.4.62-1~deb11u2
fixed
bookworm
2.4.62-1~deb12u1
fixed
bookworm (security)
2.4.62-1~deb12u2
fixed
sid
2.4.62-3
fixed
trixie
2.4.62-3
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
apache2
jammy
Fixed 2.4.52-1ubuntu1
released
impish
Fixed 2.4.48-3.1ubuntu3.2
released
hirsute
Fixed 2.4.46-4ubuntu1.5
released
focal
Fixed 2.4.41-4ubuntu3.9
released
bionic
Fixed 2.4.29-1ubuntu4.21
released
xenial
Fixed 2.4.18-2ubuntu3.17+esm4
released
trusty
Fixed 2.4.7-1ubuntu4.22+esm3
released
References