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.
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.200 (97.4th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 97.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.200 · newest: 0.200 · change: 0.000
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
- support.apple.com/HT208221
- access.redhat.com/errata/RHSA-2017:2479 (vendor-advisory)
- access.redhat.com/errata/RHSA-2017:2483 (vendor-advisory)
- security.netapp.com/advisory/ntap-20180601-0002/
- lists.apache.org/thread.html/84bf7fcc5cad35d355f11839cbdd13cbc5ffc1d34675090bff… (mailing-list)
- www.nomachine.com/SU08O00185 (Third Party Advisory, Mitigation)
- support.hpe.com/hpsc/doc/public/display
- access.redhat.com/errata/RHSA-2017:3475 (vendor-advisory)
- access.redhat.com/errata/RHSA-2017:3195 (vendor-advisory)
- www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
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.