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
NISTPrimary
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
Base Score
CVSS 3.x
EPSS Score
Percentile: 92%
Affected Products (NVD)
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
bookworm
2.4.62-1~deb12u1
fixed
bookworm (security)
2.4.62-1~deb12u2
fixed
bullseye
2.4.62-1~deb11u1
fixed
bullseye (security)
2.4.62-1~deb11u2
fixed
sid
2.4.62-3
fixed
trixie
2.4.62-3
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
apache2
bionic
Fixed 2.4.29-1ubuntu4.21
released
focal
Fixed 2.4.41-4ubuntu3.9
released
hirsute
Fixed 2.4.46-4ubuntu1.5
released
impish
Fixed 2.4.48-3.1ubuntu3.2
released
jammy
Fixed 2.4.52-1ubuntu1
released
trusty
Fixed 2.4.7-1ubuntu4.22+esm3
released
xenial
Fixed 2.4.18-2ubuntu3.17+esm4
released
openSUSE logo
openSUSE / SLES Releases
openSUSE Product
Release
apache2
suse enterprise desktop 15 SP2
2.4.51-3.37.1
fixed
suse enterprise desktop 15 SP3
2.4.51-3.37.1
fixed
suse enterprise desktop 15 SP4
2.4.51-150400.4.6
fixed
suse enterprise desktop 15 SP5
2.4.51-150400.6.11.1
fixed
suse enterprise desktop 15 SP6
2.4.58-150600.3.2
fixed
suse enterprise desktop 15 SP7
2.4.62-150700.2.2
fixed
suse enterprise sap 12 SP3
2.4.23-29.83.1
fixed
suse enterprise sap 12 SP4
2.4.23-29.83.1
fixed
suse enterprise sap 12 SP5
2.4.51-35.7.1
fixed
suse enterprise sap 15
2.4.33-3.61.1
fixed
suse enterprise sap 15 SP1
2.4.33-3.61.1
fixed
suse enterprise sap 15 SP2
2.4.51-3.37.1
fixed
suse enterprise sap 15 SP3
2.4.51-3.37.1
fixed
suse enterprise sap 15 SP4
2.4.51-150400.4.6
fixed
suse enterprise sap 15 SP5
2.4.51-150400.6.11.1
fixed
suse enterprise sap 15 SP6
2.4.58-150600.3.2
fixed
suse enterprise sap 15 SP7
2.4.62-150700.2.2
fixed
suse enterprise server 12 SP2
2.4.23-29.83.1
fixed
suse enterprise server 12 SP3
2.4.23-29.83.1
fixed
suse enterprise server 12 SP4
2.4.23-29.83.1
fixed
suse enterprise server 12 SP5
2.4.51-35.7.1
fixed
suse enterprise server 15
2.4.33-3.61.1
fixed
suse enterprise server 15 SP1
2.4.33-3.61.1
fixed
suse enterprise server 15 SP2
2.4.51-3.37.1
fixed
suse enterprise server 15 SP3
2.4.51-3.37.1
fixed
suse enterprise server 15 SP4
2.4.51-150400.4.6
fixed
suse enterprise server 15 SP5
2.4.51-150400.6.11.1
fixed
suse enterprise server 15 SP6
2.4.58-150600.3.2
fixed
suse enterprise server 15 SP7
2.4.62-150700.2.2
fixed
apache2-devel
suse enterprise sap 15
2.4.33-3.61.1
fixed
suse enterprise sap 15 SP1
2.4.33-3.61.1
fixed
suse enterprise sap 15 SP2
2.4.51-3.37.1
fixed
suse enterprise sap 15 SP3
2.4.51-3.37.1
fixed
suse enterprise sap 15 SP4
2.4.51-150400.4.6
fixed
suse enterprise sap 15 SP7
2.4.62-150700.2.1
fixed
suse enterprise server 15
2.4.33-3.61.1
fixed
suse enterprise server 15 SP1
2.4.33-3.61.1
fixed
suse enterprise server 15 SP2
2.4.51-3.37.1
fixed
suse enterprise server 15 SP3
2.4.51-3.37.1
fixed
suse enterprise server 15 SP4
2.4.51-150400.4.6
fixed
suse enterprise server 15 SP7
2.4.62-150700.2.1
fixed
apache2-doc
suse enterprise sap 12 SP3
2.4.23-29.83.1
fixed
suse enterprise sap 12 SP4
2.4.23-29.83.1
fixed
suse enterprise sap 12 SP5
2.4.51-35.7.1
fixed
suse enterprise sap 15
2.4.33-3.61.1
fixed
suse enterprise sap 15 SP1
2.4.33-3.61.1
fixed
suse enterprise sap 15 SP2
2.4.51-3.37.1
fixed
suse enterprise sap 15 SP3
2.4.51-3.37.1
fixed
suse enterprise sap 15 SP4
2.4.51-150400.4.6
fixed
suse enterprise sap 15 SP7
2.4.51-150400.6.43.1
fixed
suse enterprise server 12 SP2
2.4.23-29.83.1
fixed
suse enterprise server 12 SP3
2.4.23-29.83.1
fixed
suse enterprise server 12 SP4
2.4.23-29.83.1
fixed
suse enterprise server 12 SP5
2.4.51-35.7.1
fixed
suse enterprise server 15
2.4.33-3.61.1
fixed
suse enterprise server 15 SP1
2.4.33-3.61.1
fixed
suse enterprise server 15 SP2
2.4.51-3.37.1
fixed
suse enterprise server 15 SP3
2.4.51-3.37.1
fixed
suse enterprise server 15 SP4
2.4.51-150400.4.6
fixed
suse enterprise server 15 SP7
2.4.51-150400.6.43.1
fixed
apache2-example-pages
suse enterprise sap 12 SP3
2.4.23-29.83.1
fixed
suse enterprise sap 12 SP4
2.4.23-29.83.1
fixed
suse enterprise sap 12 SP5
2.4.51-35.7.1
fixed
suse enterprise server 12 SP2
2.4.23-29.83.1
fixed
suse enterprise server 12 SP3
2.4.23-29.83.1
fixed
suse enterprise server 12 SP4
2.4.23-29.83.1
fixed
suse enterprise server 12 SP5
2.4.51-35.7.1
fixed
apache2-prefork
suse enterprise desktop 15 SP2
2.4.51-3.37.1
fixed
suse enterprise desktop 15 SP3
2.4.51-3.37.1
fixed
suse enterprise desktop 15 SP4
2.4.51-150400.4.6
fixed
suse enterprise desktop 15 SP5
2.4.51-150400.6.11.1
fixed
suse enterprise desktop 15 SP6
2.4.58-150600.3.2
fixed
suse enterprise desktop 15 SP7
2.4.62-150700.2.4
fixed
suse enterprise sap 12 SP3
2.4.23-29.83.1
fixed
suse enterprise sap 12 SP4
2.4.23-29.83.1
fixed
suse enterprise sap 12 SP5
2.4.51-35.7.1
fixed
suse enterprise sap 15
2.4.33-3.61.1
fixed
suse enterprise sap 15 SP1
2.4.33-3.61.1
fixed
suse enterprise sap 15 SP2
2.4.51-3.37.1
fixed
suse enterprise sap 15 SP3
2.4.51-3.37.1
fixed
suse enterprise sap 15 SP4
2.4.51-150400.4.6
fixed
suse enterprise sap 15 SP5
2.4.51-150400.6.11.1
fixed
suse enterprise sap 15 SP6
2.4.58-150600.3.2
fixed
suse enterprise sap 15 SP7
2.4.62-150700.2.4
fixed
suse enterprise server 12 SP2
2.4.23-29.83.1
fixed
suse enterprise server 12 SP3
2.4.23-29.83.1
fixed
suse enterprise server 12 SP4
2.4.23-29.83.1
fixed
suse enterprise server 12 SP5
2.4.51-35.7.1
fixed
suse enterprise server 15
2.4.33-3.61.1
fixed
suse enterprise server 15 SP1
2.4.33-3.61.1
fixed
suse enterprise server 15 SP2
2.4.51-3.37.1
fixed
suse enterprise server 15 SP3
2.4.51-3.37.1
fixed
suse enterprise server 15 SP4
2.4.51-150400.4.6
fixed
suse enterprise server 15 SP5
2.4.51-150400.6.11.1
fixed
suse enterprise server 15 SP6
2.4.58-150600.3.2
fixed
suse enterprise server 15 SP7
2.4.62-150700.2.4
fixed
apache2-utils
suse enterprise desktop 15 SP2
2.4.51-3.37.1
fixed
suse enterprise desktop 15 SP3
2.4.51-3.37.1
fixed
suse enterprise desktop 15 SP4
2.4.51-150400.4.6
fixed
suse enterprise desktop 15 SP5
2.4.51-150400.6.11.1
fixed
suse enterprise sap 12 SP3
2.4.23-29.83.1
fixed
suse enterprise sap 12 SP4
2.4.23-29.83.1
fixed
suse enterprise sap 12 SP5
2.4.51-35.7.1
fixed
suse enterprise sap 15
2.4.33-3.61.1
fixed
suse enterprise sap 15 SP1
2.4.33-3.61.1
fixed
suse enterprise sap 15 SP2
2.4.51-3.37.1
fixed
suse enterprise sap 15 SP3
2.4.51-3.37.1
fixed
suse enterprise sap 15 SP4
2.4.51-150400.4.6
fixed
suse enterprise sap 15 SP5
2.4.51-150400.6.11.1
fixed
suse enterprise sap 15 SP7
2.4.62-150700.2.4
fixed
suse enterprise server 12 SP2
2.4.23-29.83.1
fixed
suse enterprise server 12 SP3
2.4.23-29.83.1
fixed
suse enterprise server 12 SP4
2.4.23-29.83.1
fixed
suse enterprise server 12 SP5
2.4.51-35.7.1
fixed
suse enterprise server 15
2.4.33-3.61.1
fixed
suse enterprise server 15 SP1
2.4.33-3.61.1
fixed
suse enterprise server 15 SP2
2.4.51-3.37.1
fixed
suse enterprise server 15 SP3
2.4.51-3.37.1
fixed
suse enterprise server 15 SP4
2.4.51-150400.4.6
fixed
suse enterprise server 15 SP5
2.4.51-150400.6.11.1
fixed
suse enterprise server 15 SP7
2.4.62-150700.2.4
fixed
apache2-worker
suse enterprise sap 12 SP3
2.4.23-29.83.1
fixed
suse enterprise sap 12 SP4
2.4.23-29.83.1
fixed
suse enterprise sap 12 SP5
2.4.51-35.7.1
fixed
suse enterprise sap 15
2.4.33-3.61.1
fixed
suse enterprise sap 15 SP1
2.4.33-3.61.1
fixed
suse enterprise sap 15 SP2
2.4.51-3.37.1
fixed
suse enterprise sap 15 SP3
2.4.51-3.37.1
fixed
suse enterprise sap 15 SP4
2.4.51-150400.4.6
fixed
suse enterprise sap 15 SP7
2.4.62-150700.2.4
fixed
suse enterprise server 12 SP2
2.4.23-29.83.1
fixed
suse enterprise server 12 SP3
2.4.23-29.83.1
fixed
suse enterprise server 12 SP4
2.4.23-29.83.1
fixed
suse enterprise server 12 SP5
2.4.51-35.7.1
fixed
suse enterprise server 15
2.4.33-3.61.1
fixed
suse enterprise server 15 SP1
2.4.33-3.61.1
fixed
suse enterprise server 15 SP2
2.4.51-3.37.1
fixed
suse enterprise server 15 SP3
2.4.51-3.37.1
fixed
suse enterprise server 15 SP4
2.4.51-150400.4.6
fixed
suse enterprise server 15 SP7
2.4.62-150700.2.4
fixed
Common Weakness Enumeration
References
http://httpd.apache.org/security/vulnerabilities_24.html
http://seclists.org/fulldisclosure/2022/May/33
http://seclists.org/fulldisclosure/2022/May/35
http://seclists.org/fulldisclosure/2022/May/38
http://www.openwall.com/lists/oss-security/2021/12/20/3
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BFSWOH4X77CV7AH7C4RMHUBDWKQDL4YH/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RGWILBORT67SHMSLYSQZG2NMXGCMPUZO/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X73C35MMMZGBVPQQCH7LQZUMYZNQA5FO/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z7H26WJ6TPKNWV3QKY4BHKUKQVUTZJTD/
https://security.gentoo.org/glsa/202208-20
https://security.netapp.com/advisory/ntap-20211224-0001/
https://support.apple.com/kb/HT213255
https://support.apple.com/kb/HT213256
https://support.apple.com/kb/HT213257
https://www.debian.org/security/2022/dsa-5035
https://www.oracle.com/security-alerts/cpuapr2022.html
https://www.oracle.com/security-alerts/cpujan2022.html
https://www.tenable.com/security/tns-2022-01
https://www.tenable.com/security/tns-2022-03
http://httpd.apache.org/security/vulnerabilities_24.html
http://seclists.org/fulldisclosure/2022/May/33
http://seclists.org/fulldisclosure/2022/May/35
http://seclists.org/fulldisclosure/2022/May/38
http://www.openwall.com/lists/oss-security/2021/12/20/3
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BFSWOH4X77CV7AH7C4RMHUBDWKQDL4YH/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RGWILBORT67SHMSLYSQZG2NMXGCMPUZO/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X73C35MMMZGBVPQQCH7LQZUMYZNQA5FO/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z7H26WJ6TPKNWV3QKY4BHKUKQVUTZJTD/
https://security.gentoo.org/glsa/202208-20
https://security.netapp.com/advisory/ntap-20211224-0001/
https://support.apple.com/kb/HT213255
https://support.apple.com/kb/HT213256
https://support.apple.com/kb/HT213257
https://www.debian.org/security/2022/dsa-5035
https://www.oracle.com/security-alerts/cpuapr2022.html
https://www.oracle.com/security-alerts/cpujan2022.html
https://www.tenable.com/security/tns-2022-01
https://www.tenable.com/security/tns-2022-03