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: Memory CorruptionDenial of service
Products affected by CVE-2015-8878
- cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
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 65,517
Threat actors abusing to this issue?
Yes
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affected by CVE-2015-8878!
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attack surface intelligence
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Exploit prediction scoring system (EPSS) score for CVE-2015-8878
0.77%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 71 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2015-8878
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
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 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)
-
The product contains a concurrent code sequence that 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 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
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