CVE-2020-13950

Apache HTTP Server versions 2.4.41 to 2.4.46 mod_proxy_http can be made to crash (NULL pointer dereference) with specially crafted requests using both Content-Length and Transfer-Encoding headers, leading to a Denial of Service
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 98%
Affected Products (NVD)
VendorProductVersion
apachehttp_server
2.4.41 ≤
𝑥
≤ 2.4.46
debiandebian_linux
9.0
debiandebian_linux
10.0
oracleenterprise_manager_ops_center
12.4.0.0
oracleinstantis_enterprisetrack
17.1
oracleinstantis_enterprisetrack
17.2
oracleinstantis_enterprisetrack
17.3
oraclezfs_storage_appliance_kit
8.8
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
buster
not-affected
sid
2.4.62-3
fixed
stretch
not-affected
trixie
2.4.62-3
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
apache2
bionic
not-affected
focal
Fixed 2.4.41-4ubuntu3.3
released
groovy
Fixed 2.4.46-1ubuntu1.2
released
hirsute
Fixed 2.4.46-4ubuntu1.1
released
impish
Fixed 2.4.46-4ubuntu2
released
jammy
Fixed 2.4.46-4ubuntu2
released
trusty
not-affected
xenial
not-affected
openSUSE logo
openSUSE / SLES Releases
openSUSE Product
Release
apache2
suse enterprise desktop 15 SP2
2.4.43-3.22.1
fixed
suse enterprise desktop 15 SP3
2.4.43-3.22.1
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 15 SP2
2.4.43-3.22.1
fixed
suse enterprise sap 15 SP3
2.4.43-3.22.1
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 server 15 SP2
2.4.43-3.22.1
fixed
suse enterprise server 15 SP3
2.4.43-3.22.1
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
apache2-devel
suse enterprise sap 15 SP2
2.4.43-3.22.1
fixed
suse enterprise sap 15 SP3
2.4.43-3.22.1
fixed
suse enterprise sap 15 SP4
2.4.51-150400.4.6
fixed
suse enterprise server 15 SP2
2.4.43-3.22.1
fixed
suse enterprise server 15 SP3
2.4.43-3.22.1
fixed
suse enterprise server 15 SP4
2.4.51-150400.4.6
fixed
apache2-doc
suse enterprise sap 15 SP2
2.4.43-3.22.1
fixed
suse enterprise sap 15 SP3
2.4.43-3.22.1
fixed
suse enterprise sap 15 SP4
2.4.51-150400.4.6
fixed
suse enterprise server 15 SP2
2.4.43-3.22.1
fixed
suse enterprise server 15 SP3
2.4.43-3.22.1
fixed
suse enterprise server 15 SP4
2.4.51-150400.4.6
fixed
apache2-prefork
suse enterprise desktop 15 SP2
2.4.43-3.22.1
fixed
suse enterprise desktop 15 SP3
2.4.43-3.22.1
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 15 SP2
2.4.43-3.22.1
fixed
suse enterprise sap 15 SP3
2.4.43-3.22.1
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 server 15 SP2
2.4.43-3.22.1
fixed
suse enterprise server 15 SP3
2.4.43-3.22.1
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
apache2-utils
suse enterprise desktop 15 SP2
2.4.43-3.22.1
fixed
suse enterprise desktop 15 SP3
2.4.43-3.22.1
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 15 SP2
2.4.43-3.22.1
fixed
suse enterprise sap 15 SP3
2.4.43-3.22.1
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 server 15 SP2
2.4.43-3.22.1
fixed
suse enterprise server 15 SP3
2.4.43-3.22.1
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
apache2-worker
suse enterprise sap 15 SP2
2.4.43-3.22.1
fixed
suse enterprise sap 15 SP3
2.4.43-3.22.1
fixed
suse enterprise sap 15 SP4
2.4.51-150400.4.6
fixed
suse enterprise server 15 SP2
2.4.43-3.22.1
fixed
suse enterprise server 15 SP3
2.4.43-3.22.1
fixed
suse enterprise server 15 SP4
2.4.51-150400.4.6
fixed
Amazon Linux logo
Amazon Linux Releases
Amazon Package
Release
httpd
Amazon Linux 2
0:2.4.48-2.amzn2
fixed
httpd-debuginfo
Amazon Linux 2
0:2.4.48-2.amzn2
fixed
httpd-devel
Amazon Linux 2
0:2.4.48-2.amzn2
fixed
httpd-filesystem
Amazon Linux 2
0:2.4.48-2.amzn2
fixed
httpd-manual
Amazon Linux 2
0:2.4.48-2.amzn2
fixed
httpd-tools
Amazon Linux 2
0:2.4.48-2.amzn2
fixed
httpd24
Amazon Linux 1
0:2.4.48-1.92.amzn1
fixed
httpd24-debuginfo
Amazon Linux 1
0:2.4.48-1.92.amzn1
fixed
httpd24-devel
Amazon Linux 1
0:2.4.48-1.92.amzn1
fixed
httpd24-manual
Amazon Linux 1
0:2.4.48-1.92.amzn1
fixed
httpd24-tools
Amazon Linux 1
0:2.4.48-1.92.amzn1
fixed
mod24_ldap
Amazon Linux 1
0:2.4.48-1.92.amzn1
fixed
mod24_md
Amazon Linux 1
0:2.4.48-1.92.amzn1
fixed
mod24_proxy_html
Amazon Linux 1
1:2.4.48-1.92.amzn1
fixed
mod24_session
Amazon Linux 1
0:2.4.48-1.92.amzn1
fixed
mod24_ssl
Amazon Linux 1
1:2.4.48-1.92.amzn1
fixed
mod_ldap
Amazon Linux 2
0:2.4.48-2.amzn2
fixed
mod_md
Amazon Linux 2
0:2.4.48-2.amzn2
fixed
mod_proxy_html
Amazon Linux 2
1:2.4.48-2.amzn2
fixed
mod_session
Amazon Linux 2
0:2.4.48-2.amzn2
fixed
mod_ssl
Amazon Linux 2
1:2.4.48-2.amzn2
fixed
Azure Linux logo
Azure Linux Releases
Azure Package
Release
httpd
CBL-Mariner 1.0
0:2.4.46-5.cm1
fixed
CBL-Mariner 2.0
0:2.4.46-10.cm2
fixed
Common Weakness Enumeration
References
http://httpd.apache.org/security/vulnerabilities_24.html
http://www.openwall.com/lists/oss-security/2021/06/10/4
https://lists.apache.org/thread.html/r7f2b70b621651548f4b6f027552f1dd91705d7111bb5d15cda0a68dd%40%3Cdev.httpd.apache.org%3E
https://lists.apache.org/thread.html/rbe197409ae4a58b629fb792d1aed541ccbbf865121a80e1c5938d223%40%3Cannounce.httpd.apache.org%3E
https://lists.apache.org/thread.html/re026d3da9d7824bd93b9f871c0fdda978d960c7e62d8c43cba8d0bf3%40%3Ccvs.httpd.apache.org%3E
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SPBR6WUYBJNACHKE65SPL7TJOHX7RHWD/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZNCYSR3BXT36FFF4XTCPL3HDQK4VP45R/
https://security.gentoo.org/glsa/202107-38
https://security.netapp.com/advisory/ntap-20210702-0001/
https://www.oracle.com/security-alerts/cpuoct2021.html
http://httpd.apache.org/security/vulnerabilities_24.html
http://www.openwall.com/lists/oss-security/2021/06/10/4
https://lists.apache.org/thread.html/r7f2b70b621651548f4b6f027552f1dd91705d7111bb5d15cda0a68dd%40%3Cdev.httpd.apache.org%3E
https://lists.apache.org/thread.html/rbe197409ae4a58b629fb792d1aed541ccbbf865121a80e1c5938d223%40%3Cannounce.httpd.apache.org%3E
https://lists.apache.org/thread.html/re026d3da9d7824bd93b9f871c0fdda978d960c7e62d8c43cba8d0bf3%40%3Ccvs.httpd.apache.org%3E
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SPBR6WUYBJNACHKE65SPL7TJOHX7RHWD/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZNCYSR3BXT36FFF4XTCPL3HDQK4VP45R/
https://security.gentoo.org/glsa/202107-38
https://security.netapp.com/advisory/ntap-20210702-0001/
https://www.oracle.com/security-alerts/cpuoct2021.html