NULL pointer dereference in Apache Http_server
CVE-2017-3169
In Apache httpd 2.2.x before 2.2.33 and 2.4.x before 2.4.26, mod_ssl may dereference a NULL pointer when third-party modules call ap_hook_process_connection() during an HTTP request to an HTTPS port.
EPSS: 0.308 (96.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Apache Http_server — versions 2.2.0, 2.2.2, 2.2.3
- Apache Software Foundation Http Server — versions 2.4.0 to 2.4.25, 2.2.0 to 2.2.32
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@apache.org (x_refsource_CONFIRM)
- security@apache.org (x_refsource_REDHAT, vendor-advisory)
- security@apache.org (x_refsource_REDHAT, vendor-advisory)
- security@apache.org (x_refsource_CONFIRM)
- security@apache.org (mailing-list, x_refsource_MLIST)
- security@apache.org (x_refsource_CONFIRM, Third Party Advisory, Mitigation)
- security@apache.org (x_refsource_CONFIRM)
- security@apache.org (x_refsource_REDHAT, vendor-advisory)
- security@apache.org (x_refsource_REDHAT, vendor-advisory)
- security@apache.org (x_refsource_CONFIRM)
Frequently asked questions
- What is CVE-2017-3169?
- CVE-2017-3169 is a critical-severity vulnerability in Apache Http_server, classified under NULL Pointer Dereference. CVSS score: 9.8/10. Published 2017-06-20.
- How severe is CVE-2017-3169?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2017-3169 known to be exploited?
- 29 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.