High severity7.5NVD Advisory· Published Jun 10, 2021· Updated Jun 17, 2026
CVE-2020-13950
CVE-2020-13950
Description
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
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
20cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*range: >=2.4.41,<=2.4.46
- (no CPE)range: 2.4.41 - 2.4.46
- (no CPE)range: 2.4.46
- cpe:2.3:a:oracle:enterprise_manager_ops_center:12.4.0.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:instantis_enterprisetrack:17.1:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:a:oracle:instantis_enterprisetrack:17.1:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:instantis_enterprisetrack:17.2:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:instantis_enterprisetrack:17.3:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:zfs_storage_appliance_kit:8.8:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
- osv-coords8 versionspkg:bitnami/apachepkg:rpm/opensuse/apache2&distro=openSUSE%20Leap%2015.2pkg:rpm/opensuse/apache2&distro=openSUSE%20Leap%2015.3pkg:rpm/suse/apache2&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP2pkg:rpm/suse/apache2&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP3pkg:rpm/suse/apache2&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Package%20Hub%2015%20SP3pkg:rpm/suse/apache2&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP2pkg:rpm/suse/apache2&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP3
>= 2.4.41, < 2.4.47+ 7 more
- (no CPE)range: >= 2.4.41, < 2.4.47
- (no CPE)range: < 2.4.43-lp152.2.15.1
- (no CPE)range: < 2.4.43-3.22.1
- (no CPE)range: < 2.4.43-3.22.1
- (no CPE)range: < 2.4.43-3.22.1
- (no CPE)range: < 2.4.43-3.22.1
- (no CPE)range: < 2.4.43-3.22.1
- (no CPE)range: < 2.4.43-3.22.1
Patches
Vulnerability mechanics
References
10- httpd.apache.org/security/vulnerabilities_24.htmlnvdVendor Advisory
- www.openwall.com/lists/oss-security/2021/06/10/4nvdMailing ListThird Party Advisory
- security.gentoo.org/glsa/202107-38nvdThird Party Advisory
- security.netapp.com/advisory/ntap-20210702-0001/nvdThird Party Advisory
- www.oracle.com/security-alerts/cpuoct2021.htmlnvdThird Party Advisory
- lists.apache.org/thread.html/re026d3da9d7824bd93b9f871c0fdda978d960c7e62d8c43cba8d0bf3%40%3Ccvs.httpd.apache.org%3EnvdMailing ListRelease Notes
- lists.apache.org/thread.html/r7f2b70b621651548f4b6f027552f1dd91705d7111bb5d15cda0a68dd%40%3Cdev.httpd.apache.org%3Envd
- lists.apache.org/thread.html/rbe197409ae4a58b629fb792d1aed541ccbbf865121a80e1c5938d223%40%3Cannounce.httpd.apache.org%3Envd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SPBR6WUYBJNACHKE65SPL7TJOHX7RHWD/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZNCYSR3BXT36FFF4XTCPL3HDQK4VP45R/nvd
News mentions
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