CVE-2017-3169
9.8
CRITICAL · CVSS 3.0 · EPSS 20% (pctl 97)
Patch early
EPSS 20% — above the 10% action threshold.
Description
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.
Scoring
| CVSS | 9.8 (CRITICAL, v3.0) |
|---|---|
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 19.95% — more likely to be exploited than 97% of all CVEs |
| Weakness | CWE-476 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2017-06-20 |
| Last modified | 2026-06-17 |
Affected (1)
| Vendor | Product |
|---|---|
| apache | http server |
References
- http://www.debian.org/security/2017/dsa-3896
- http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
- http://www.securityfocus.com/bid/99134
- http://www.securitytracker.com/id/1038711
- https://access.redhat.com/errata/RHSA-2017:2478
- https://access.redhat.com/errata/RHSA-2017:2479
- https://access.redhat.com/errata/RHSA-2017:2483
- https://access.redhat.com/errata/RHSA-2017:3193
- https://access.redhat.com/errata/RHSA-2017:3194
- https://access.redhat.com/errata/RHSA-2017:3195
- https://access.redhat.com/errata/RHSA-2017:3475
- https://access.redhat.com/errata/RHSA-2017:3476
- https://access.redhat.com/errata/RHSA-2017:3477
- https://github.com/gottburgm/Exploits/tree/master/CVE-2017-3169
- https://lists.apache.org/thread.html/56c2e7cc9deb1c12a843d0dc251ea7fd3e7e80293cde02fcd65286ba%40%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/84a3714f0878781f6ed84473d1a503d2cc382277e100450209231830%40%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/84bf7fcc5cad35d355f11839cbdd13cbc5ffc1d34675090bff0f96ae%40%3Cdev.httpd.apache.org%3E
- https://lists.apache.org/thread.html/8d63cb8e9100f28a99429b4328e4e7cebce861d5772ac9863ba2ae6f%40%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/f7f95ac1cd9895db2714fa3ebaa0b94d0c6df360f742a40951384a53%40%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/r04e89e873d54116a0635ef2f7061c15acc5ed27ef7500997beb65d6f%40%3Ccvs.httpd.apache.org%3E
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