VULNERABILITY INTELLIGENCE
CVE-2017-7668
CVSS score7.5 HIGH
EPSS probability57.47%
CISA KEVNot currently listed
Published2017-06-20
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Description
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.
Weakness classification
- CWE-125: Out-of-bounds Read
- CWE-126: Buffer Over-read
Primary references
- security@apache.org — Third Party Advisory
- security@apache.org — Patch, Third Party Advisory
- security@apache.org — Third Party Advisory, VDB Entry
- security@apache.org — Third Party Advisory, VDB Entry
- security@apache.org — Third Party Advisory
- security@apache.org — Third Party Advisory
- security@apache.org — Third Party Advisory
- security@apache.org — Third Party Advisory
- security@apache.org
- security@apache.org
- security@apache.org
- security@apache.org