CVE-2015-8878
php: main/php_open_temporary_file.c does not ensure thread safety
Severity
ModerateRed Hat Product Security
CVSS 2.0
Review impact separately from score.
Published · July 6, 2015
Updated · November 21, 2025
Description
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.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 2.0 · 4.3AV:N/AC:M/Au:N/C:N/I:N/A:P
CWE-567 · Unsynchronized Access to Shared Data in a Multithreaded Context