Vulnerabilities > CVE-2021-26690 - NULL Pointer Dereference vulnerability in multiple products
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
NONE Integrity impact
NONE Availability impact
HIGH Summary
Apache HTTP Server versions 2.4.0 to 2.4.46 A specially crafted Cookie header handled by mod_session can cause a NULL pointer dereference and crash, leading to a possible Denial Of Service
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| Application | Apache
| 14 |
| Application | 5 | |
| OS | 2 | |
| OS | 2 |
Common Weakness Enumeration (CWE)
References
- http://httpd.apache.org/security/vulnerabilities_24.html
- https://lists.apache.org/thread.html/re026d3da9d7824bd93b9f871c0fdda978d960c7e62d8c43cba8d0bf3%40%3Ccvs.httpd.apache.org%3E
- http://www.openwall.com/lists/oss-security/2021/06/10/6
- https://security.netapp.com/advisory/ntap-20210702-0001/
- https://lists.debian.org/debian-lts-announce/2021/07/msg00006.html
- https://www.debian.org/security/2021/dsa-4937
- https://security.gentoo.org/glsa/202107-38
- https://www.oracle.com/security-alerts/cpuoct2021.html
- https://lists.apache.org/thread.html/rae406c1d19c0dfd3103c96923dadac2af1cd0bad6905ab1ede153865%40%3Cannounce.httpd.apache.org%3E
- https://lists.apache.org/thread.html/r7f2b70b621651548f4b6f027552f1dd91705d7111bb5d15cda0a68dd%40%3Cdev.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/