Vulnerability Details : CVE-2015-8878
main/php_open_temporary_file.c in PHP before 5.5.28 and 5.6.x before 5.6.12 does not ensure thread safety, which allows remote attackers to cause a denial of service (race condition and heap memory corruption) by leveraging an application that performs many temporary-file accesses.
Vulnerability category: OverflowMemory CorruptionDenial of service
Threat overview for CVE-2015-8878
Top countries where our scanners detected CVE-2015-8878
Top open port discovered on systems with this issue
80
IPs affected by CVE-2015-8878 46,705
Threat actors abusing to this issue?
Yes
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affected by CVE-2015-8878!
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Exploit prediction scoring system (EPSS) score for CVE-2015-8878
Probability of exploitation activity in the next 30 days: 0.13%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 48 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2015-8878
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
---|---|---|---|---|---|
7.1
|
HIGH | AV:N/AC:M/Au:N/C:N/I:N/A:C |
8.6
|
6.9
|
NIST |
5.9
|
MEDIUM | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |
2.2
|
3.6
|
NIST |
CWE ids for CVE-2015-8878
-
The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer.Assigned by: nvd@nist.gov (Primary)
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The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently.Assigned by: nvd@nist.gov (Primary)
References for CVE-2015-8878
-
https://bugs.php.net/bug.php?id=70002
PHP :: Bug #70002 :: apache2 / php5ts crashes, sometimes reporting zend_mm_heap corruptedIssue Tracking;Vendor Advisory
-
http://www.php.net/ChangeLog-5.php
PHP: PHP 5 ChangeLogVendor Advisory
Products affected by CVE-2015-8878
- cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:*:*:*:*:*:*:*:*