CVEvulnerability
CVE-2021-26690
7.5 HIGH
Official page ↗
- Status
- Modified
- Published
- 2021-06-10
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:N/A:P
- Weaknesses
- CWE-476
Description
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
Affected configurations
• apache http server (>= 2.4.0 <= 2.4.46)
• debian debian linux 9.0
• debian debian linux 10.0
• fedoraproject fedora 34
• fedoraproject fedora 35
• oracle enterprise manager ops center 12.4.0.0
• oracle instantis enterprisetrack 17.1
• oracle instantis enterprisetrack 17.2
• oracle instantis enterprisetrack 17.3
• oracle zfs storage appliance kit 8.8
Related
Weakness · CWE (1)
- CWE-476 NULL Pointer Dereference weakness
References
- http://httpd.apache.org/security/vulnerabilities_24.html Release Notes, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2021/06/10/6 Mailing List, Third Party Advisory
- https://lists.apache.org/thread.html/r7f2b70b621651548f4b6f027552f1dd91705d7111bb5d15cda0a68dd%40%3Cdev.httpd.apache.org%3E lists.apache.org
- https://lists.apache.org/thread.html/rae406c1d19c0dfd3103c96923dadac2af1cd0bad6905ab1ede153865%40%3Cannounce.httpd.apache.org%3E lists.apache.org
- https://lists.apache.org/thread.html/re026d3da9d7824bd93b9f871c0fdda978d960c7e62d8c43cba8d0bf3%40%3Ccvs.httpd.apache.org%3E Mailing List, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2021/07/msg00006.html Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SPBR6WUYBJNACHKE65SPL7TJOHX7RHWD/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZNCYSR3BXT36FFF4XTCPL3HDQK4VP45R/ lists.fedoraproject.org
- https://security.gentoo.org/glsa/202107-38 Third Party Advisory
- https://security.netapp.com/advisory/ntap-20210702-0001/ Third Party Advisory
- https://www.debian.org/security/2021/dsa-4937 Mailing List, Third Party Advisory
- https://www.oracle.com/security-alerts/cpuoct2021.html Third Party Advisory
- http://httpd.apache.org/security/vulnerabilities_24.html Release Notes, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2021/06/10/6 Mailing List, Third Party Advisory
- https://lists.apache.org/thread.html/r7f2b70b621651548f4b6f027552f1dd91705d7111bb5d15cda0a68dd%40%3Cdev.httpd.apache.org%3E lists.apache.org
- https://lists.apache.org/thread.html/rae406c1d19c0dfd3103c96923dadac2af1cd0bad6905ab1ede153865%40%3Cannounce.httpd.apache.org%3E lists.apache.org
- https://lists.apache.org/thread.html/re026d3da9d7824bd93b9f871c0fdda978d960c7e62d8c43cba8d0bf3%40%3Ccvs.httpd.apache.org%3E Mailing List, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2021/07/msg00006.html Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SPBR6WUYBJNACHKE65SPL7TJOHX7RHWD/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZNCYSR3BXT36FFF4XTCPL3HDQK4VP45R/ lists.fedoraproject.org
- https://security.gentoo.org/glsa/202107-38 Third Party Advisory
- https://security.netapp.com/advisory/ntap-20210702-0001/ Third Party Advisory
- https://www.debian.org/security/2021/dsa-4937 Mailing List, Third Party Advisory
- https://www.oracle.com/security-alerts/cpuoct2021.html Third Party Advisory