mod_proxy_http NULL pointer dereference
15Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 49%
exploitation probability
49%top 1% of all CVEs
observed exploitation
nono source reports it
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
Affected products
Apache Software Foundation · Apache HTTP ServerReferences
http://httpd.apache.org/security/vulnerabilities_24.htmlhttps://lists.apache.org/thread.html/r7f2b70b621651548f4b6f027552f1dd91705d7111bb5d15cda0a68dd%40%3Cdev.httpd.apache.org%3Ehttps://lists.apache.org/thread.html/rbe197409ae4a58b629fb792d1aed541ccbbf865121a80e1c5938d223%40%3Cannounce.httpd.apache.org%3Ehttps://lists.apache.org/thread.html/re026d3da9d7824bd93b9f871c0fdda978d960c7e62d8c43cba8d0bf3%40%3Ccvs.httpd.apache.org%3Ehttps://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/202107-38https://security.netapp.com/advisory/ntap-20210702-0001/https://www.oracle.com/security-alerts/cpuoct2021.htmlhttp://www.openwall.com/lists/oss-security/2021/06/10/4