Vulnerability Details : CVE-2007-4657

Multiple integer overflows in PHP 4 before 4.4.8, and PHP 5 before 5.2.4, allow remote attackers to obtain sensitive information (memory contents) or cause a denial of service (thread crash) via a large len value to the (1) strspn or (2) strcspn function, which triggers an out-of-bounds read. NOTE: this affects different product versions than CVE-2007-3996.
Published 2007-09-04 22:17:00
Updated 2018-10-26 14:05:07
Source MITRE
View at NVD,   CVE.org
Vulnerability category: OverflowDenial of service

Products affected by CVE-2007-4657

Threat overview for CVE-2007-4657

Top countries where our scanners detected CVE-2007-4657
Top open port discovered on systems with this issue 80
IPs affected by CVE-2007-4657 24,373
Threat actors abusing to this issue? Yes
Find out if you* are affected by CVE-2007-4657!
*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-2007-4657

EPSS FAQ
2.41%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 90 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2007-4657

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
7.5
 HIGH AV:N/AC:L/Au:N/C:P/I:P/A:P
10.0
6.4
 NIST

CWE ids for CVE-2007-4657

  • The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
    Assigned by: nvd@nist.gov (Primary)
  • Assigned by: nvd@nist.gov (Primary)

Vendor statements for CVE-2007-4657

  • Red Hat 2007-09-05
    The only effect of this bug is to cause the process to read from a random segment of memory, if a large "length" parameter is passed to the strspn/strcspn function, which is under the control of the script author. This bug has no security impact.

References for CVE-2007-4657

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