Vulnerability Details : CVE-2017-7668

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.
Published 2017-06-20 01:29:00
Updated 2022-04-21 14:40:50
Source Apache Software Foundation
View at NVD,   CVE.org
Vulnerability category: Memory Corruption

Products affected by CVE-2017-7668

Threat overview for CVE-2017-7668

Top countries where our scanners detected CVE-2017-7668
Top open port discovered on systems with this issue 80
IPs affected by CVE-2017-7668 384,021
Threat actors abusing to this issue? Yes
Find out if you* are affected by CVE-2017-7668!
*Directly or indirectly through your vendors, service providers and 3rd parties. Powered by attack surface intelligence from SecurityScorecard.

Exploit prediction scoring system (EPSS) score for CVE-2017-7668

EPSS FAQ
70.44%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 99 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2017-7668

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
5.0
 MEDIUM AV:N/AC:L/Au:N/C:N/I:N/A:P
10.0
2.9
 NIST
7.5
 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
3.9
3.6
 NIST

CWE ids for CVE-2017-7668

  • The product reads data past the end, or before the beginning, of the intended buffer.
    Assigned by: nvd@nist.gov (Primary)
  • The product reads from a buffer using buffer access mechanisms such as indexes or pointers that reference memory locations after the targeted buffer.
    Assigned by: security@apache.org (Secondary)

References for CVE-2017-7668

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