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In June 2017, Apache HTTPD released a security advisory detailing several security issues. The following vulnerabilities reported in the Apache HTTP advisory affect the ACOS HTTP and HTTPS management services and are addressed in this document.
| Item # | Vulnerability ID | Score Source | Score | Summary |
| 1 | CVE-2017-3169 | CVSS 3.0 | 9.8 Critical | httpd: mod_ssl NULL pointer dereference [1] |
| 2 | CVE-2017-7679 | CVSS 3.0 | 9.8 Critical | httpd: mod_mime buffer overread [2] |
The table below indicates releases of ACOS exposed to these vulnerabilities and ACOS releases that address them. ACOS release families not indicated below are unaffected by these vulnerabilities.
Customers using affected ACOS releases can overcome vulnerability exposures by updating to the indicated resolved release. If the table does not list a corresponding resolved or unaffected release, then no ACOS release update is currently available.
| Releases Affected | Releases Resolved or Unaffected |
|---|---|
| 4.1.2 – 4.1.2-P2 | 4.1.2-P3 |
| 4.1.1 – 4.1.1-P5 | 4.1.1-P6 |
| 3.1.0-P1 – 3.2.2-P2 | 3.2.2-P3 |
| 4.1.100 – 4.1.100-P5 | 4.1.100-P5-SP1 |
| 4.1.0 – 4.1.0-P9 | 4.1.0-P10 |
(a) Including all updates to the release(s).
Common security best practices in the industry for network appliance management and control planes can enhance protection against remote malicious attacks. Limit the exploitable attack surface for critical, infrastructure, networking equipment through the use of access lists or firewall filters to and from only trusted, administrative networks or hosts.
Software updates that address these vulnerabilities are or will be published at the following URL:
https://www.a10networks.com/support/axseries/software-downloads
The following table shares brief descriptions for the vulnerabilities addressed in this document.
| Vulnerability ID | Vulnerability Description |
|---|---|
| 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. |
| CVE-2017-7679 |
In Apache httpd 2.2.x before 2.2.33 and 2.4.x before 2.4.26, mod_mime can read one byte past the end of a buffer when sending a malicious Content-Type response header. |
The following table shares brief descriptions for the vulnerabilities addressed in this document.
| Ref # | General Link |
|---|---|
| [1] | NIST NVD, CVE-2017-3169 |
| [2] | NIST NVD, CVE-2017-7679 |
None.
| Revision | Date | Description |
|---|---|---|
| 1.0 | July 16, 2018 |
Initial Publication |
| 2.0 | July 18, 2018 |
Corrected ACOS 3.x affected release. |
| 3.0 | November 2, 2018 |
Added indication of ACOS functions affected. |
| 4.0 | October 11, 2019 |
Added 4.1.100 release family. |
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