CVE-2017-7668
Published: 19 June 2017
The HTTP strict parsing changes added in Apache httpd 2.2.32 and 2.4.24 introduced a bug in token list parsing, which allows ap_find_token() to search past the end of its input string. By maliciously crafting a sequence of request headers, an attacker may be able to cause a segmentation fault, or to force ap_find_token() to return an incorrect value.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
apache2 Launchpad, Ubuntu, Debian |
trusty |
Released
(2.4.7-1ubuntu4.16)
|
| upstream |
Pending
(2.2.33, 2.4.26)
|
|
| xenial |
Released
(2.4.18-2ubuntu3.3)
|
|
| yakkety |
Released
(2.4.18-2ubuntu4.2)
|
|
| zesty |
Released
(2.4.25-3ubuntu2.1)
|
|
|
Patches: upstream: https://www.apache.org/dist/httpd/patches/apply_to_2.2.32/CVE-2017-7668.patch upstream: https://github.com/apache/httpd/commit/a585e36e06a53170be6d2d462ceb5b30b8382988 upstream: https://github.com/apache/httpd/commit/ad581ced12363ce82ffcb16133f236b2e31563e1 |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |