Vulnerability Details : CVE-2015-6834
Multiple use-after-free vulnerabilities in PHP before 5.4.45, 5.5.x before 5.5.29, and 5.6.x before 5.6.13 allow remote attackers to execute arbitrary code via vectors related to (1) the Serializable interface, (2) the SplObjectStorage class, and (3) the SplDoublyLinkedList class, which are mishandled during unserialization.
Vulnerability category: Memory CorruptionExecute code
Products affected by CVE-2015-6834
- cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.5:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.6:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.1:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.3:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.2:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.4:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.0:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.11:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.12:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.2:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.7:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.8:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.9:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.1:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.10:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.5:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.6:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.3:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.4:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.8:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.7:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.11:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.10:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.9:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.12:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.13:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.15:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.14:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.16:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.17:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.0:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.18:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.19:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.20:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.21:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.26:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.25:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.22:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.28:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.27:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.24:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.5.23:*:*:*:*:*:*:*
Threat overview for CVE-2015-6834
Top countries where our scanners detected CVE-2015-6834
Top open port discovered on systems with this issue
80
IPs affected by CVE-2015-6834 459,388
Threat actors abusing to this issue?
Yes
Find out if you* are
affected by CVE-2015-6834!
*Directly or indirectly through your vendors, service providers and 3rd parties.
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attack surface intelligence
from SecurityScorecard.
Exploit prediction scoring system (EPSS) score for CVE-2015-6834
20.11%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 96 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2015-6834
| 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 | |
|
9.8
|
CRITICAL | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
References for CVE-2015-6834
-
http://www.securityfocus.com/bid/76649
PHP CVE-2015-6834 Multiple Remote Code Execution Vulnerabilities
-
https://security.gentoo.org/glsa/201606-10
PHP: Multiple vulnerabilities (GLSA 201606-10) — Gentoo security
-
http://www.debian.org/security/2015/dsa-3358
Debian -- Security Information -- DSA-3358-1 php5
-
http://www.securitytracker.com/id/1033548
PHP Multiple Bugs Let Remote Users Obtain Potentially Sensitive Information, View Files, and Execute Arbitrary Code - SecurityTracker
-
https://bugs.php.net/bug.php?id=70172
PHP :: Sec Bug #70172 :: Use After Free Vulnerability in unserialize()Exploit
-
https://bugs.php.net/bug.php?id=70366
PHP :: Sec Bug #70366 :: yet another use-after-free vulnerability in unserialize() with SplDoublyLinkedLExploit
-
https://bugs.php.net/bug.php?id=70365
PHP :: Sec Bug #70365 :: yet another use-after-free vulnerability in unserialize() with SplObjectStorageExploit
-
http://php.net/ChangeLog-5.php
PHP: PHP 5 ChangeLog
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