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CVE-2015-6835 Details

Description

The session deserializer in PHP before 5.4.45, 5.5.x before 5.5.29, and 5.6.x before 5.6.13 mishandles multiple php_var_unserialize calls, which allow remote attackers to execute arbitrary code or cause a denial of service (use-after-free) via crafted session content.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:9.8 CRITICALVector:CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URL	Source(s)	Tag(s)
http://php.net/ChangeLog-5.php	CVE
https://bugs.php.net/bug.php?id=70219	CVE
https://security.gentoo.org/glsa/201606-10	CVE
http://www.debian.org/security/2015/dsa-3358	CVE
http://www.securityfocus.com/bid/76734	CVE
http://www.securitytracker.com/id/1033548	CVE
http://php.net/ChangeLog-5.php	[email protected]
https://bugs.php.net/bug.php?id=70219	[email protected]
https://security.gentoo.org/glsa/201606-10	[email protected]
http://www.debian.org/security/2015/dsa-3358	[email protected]
http://www.securityfocus.com/bid/76734	[email protected]
http://www.securitytracker.com/id/1033548	[email protected]

see all 12 references

Weakness Enumeration

CWE-ID	CWE Name	Source
NVD-CWE-Other	Weakness Not in a Standard CWE Category	[email protected]

Affected Products

Product	Versions
php php	5.6.0 alpha1 5.6.0 alpha2 5.6.0 alpha3 5.6.0 alpha4 5.6.0 alpha5
CPE cpe:2.3:a:php:php:5.6.0:alpha1:::::: cpe:2.3:a:php:php:5.6.0:alpha2:::::: cpe:2.3:a:php:php:5.6.0:alpha3:::::: cpe:2.3:a:php:php:5.6.0:alpha4:::::: cpe:2.3:a:php:php:5.6.0:alpha5:::::: cpe:2.3:a:php:php:5.6.0:beta1:::::: cpe:2.3:a:php:php:5.6.0:beta2:::::: cpe:2.3:a:php:php:5.6.0:beta3:::::: cpe:2.3:a:php:php:5.6.0:beta4:::::: cpe:2.3:a:php:php:5.6.1:::::::* cpe:2.3:a:php:php:5.6.2:::::::* cpe:2.3:a:php:php:5.6.3:::::::* cpe:2.3:a:php:php:5.6.4:::::::* cpe:2.3:a:php:php:5.6.5:::::::* cpe:2.3:a:php:php:5.6.6:::::::* 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:5.6.10:::::::* cpe:2.3:a:php:php:5.6.11:::::::* cpe:2.3:a:php:php:5.6.12:::::::* cpe:2.3:a:php:php:::::::: cpe:2.3:a:php:php:5.5.0:::::::* cpe:2.3:a:php:php:5.5.0:alpha1:::::: cpe:2.3:a:php:php:5.5.0:alpha2:::::: cpe:2.3:a:php:php:5.5.0:alpha3:::::: cpe:2.3:a:php:php:5.5.0:alpha4:::::: cpe:2.3:a:php:php:5.5.0:alpha5:::::: cpe:2.3:a:php:php:5.5.0:alpha6:::::: cpe:2.3:a:php:php:5.5.0:beta1:::::: cpe:2.3:a:php:php:5.5.0:beta2:::::: cpe:2.3:a:php:php:5.5.0:beta3:::::: cpe:2.3:a:php:php:5.5.0:beta4:::::: cpe:2.3:a:php:php:5.5.0:rc1:::::: cpe:2.3:a:php:php:5.5.0:rc2:::::: cpe:2.3:a:php:php:5.5.1:::::::* cpe:2.3:a:php:php:5.5.2:::::::* cpe:2.3:a:php:php:5.5.3:::::::* cpe:2.3:a:php:php:5.5.4:::::::* cpe:2.3:a:php:php:5.5.5:::::::* cpe:2.3:a:php:php:5.5.6:::::::* cpe:2.3:a:php:php:5.5.7:::::::* cpe:2.3:a:php:php:5.5.8:::::::* cpe:2.3:a:php:php:5.5.9:::::::* cpe:2.3:a:php:php:5.5.10:::::::* cpe:2.3:a:php:php:5.5.11:::::::* cpe:2.3:a:php:php:5.5.12:::::::* cpe:2.3:a:php:php:5.5.13:::::::* cpe:2.3:a:php:php:5.5.14:::::::* cpe:2.3:a:php:php:5.5.15:::::::* cpe:2.3:a:php:php:5.5.16:::::::* cpe:2.3:a:php:php:5.5.17:::::::* cpe:2.3:a:php:php:5.5.18:::::::* 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:5.5.22:::::::* cpe:2.3:a:php:php:5.5.23:::::::* cpe:2.3:a:php:php:5.5.24:::::::* cpe:2.3:a:php:php:5.5.25:::::::* cpe:2.3:a:php:php:5.5.26:::::::* cpe:2.3:a:php:php:5.5.27:::::::* cpe:2.3:a:php:php:5.5.28:::::::* Remediation No remediation found in references.

Product

Versions

php php

5.6.0 alpha1

5.6.0 alpha2

5.6.0 alpha3

5.6.0 alpha4

5.6.0 alpha5

CPE

cpe:2.3:a:php:php:5.6.0:alpha1:*:*:*:*:*:*
cpe:2.3:a:php:php:5.6.0:alpha2:*:*:*:*:*:*
cpe:2.3:a:php:php:5.6.0:alpha3:*:*:*:*:*:*
cpe:2.3:a:php:php:5.6.0:alpha4:*:*:*:*:*:*
cpe:2.3:a:php:php:5.6.0:alpha5:*:*:*:*:*:*
cpe:2.3:a:php:php:5.6.0:beta1:*:*:*:*:*:*
cpe:2.3:a:php:php:5.6.0:beta2:*:*:*:*:*:*
cpe:2.3:a:php:php:5.6.0:beta3:*:*:*:*:*:*
cpe:2.3:a:php:php:5.6.0:beta4:*:*:*:*:*:*
cpe:2.3:a:php:php:5.6.1:*:*:*:*:*:*:*
cpe:2.3:a:php:php:5.6.2:*:*:*:*:*:*:*
cpe:2.3:a:php:php:5.6.3:*:*:*:*:*:*:*
cpe:2.3:a:php:php:5.6.4:*:*:*:*:*:*:*
cpe:2.3:a:php:php:5.6.5:*:*:*:*:*:*:*
cpe:2.3:a:php:php:5.6.6:*:*:*:*:*:*:*
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:5.6.10:*:*:*:*:*:*:*
cpe:2.3:a:php:php:5.6.11:*:*:*:*:*:*:*
cpe:2.3:a:php:php:5.6.12:*:*:*:*:*:*:*
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
cpe:2.3:a:php:php:5.5.0:*:*:*:*:*:*:*
cpe:2.3:a:php:php:5.5.0:alpha1:*:*:*:*:*:*
cpe:2.3:a:php:php:5.5.0:alpha2:*:*:*:*:*:*
cpe:2.3:a:php:php:5.5.0:alpha3:*:*:*:*:*:*
cpe:2.3:a:php:php:5.5.0:alpha4:*:*:*:*:*:*
cpe:2.3:a:php:php:5.5.0:alpha5:*:*:*:*:*:*
cpe:2.3:a:php:php:5.5.0:alpha6:*:*:*:*:*:*
cpe:2.3:a:php:php:5.5.0:beta1:*:*:*:*:*:*
cpe:2.3:a:php:php:5.5.0:beta2:*:*:*:*:*:*
cpe:2.3:a:php:php:5.5.0:beta3:*:*:*:*:*:*
cpe:2.3:a:php:php:5.5.0:beta4:*:*:*:*:*:*
cpe:2.3:a:php:php:5.5.0:rc1:*:*:*:*:*:*
cpe:2.3:a:php:php:5.5.0:rc2:*:*:*:*:*:*
cpe:2.3:a:php:php:5.5.1:*:*:*:*:*:*:*
cpe:2.3:a:php:php:5.5.2:*:*:*:*:*:*:*
cpe:2.3:a:php:php:5.5.3:*:*:*:*:*:*:*
cpe:2.3:a:php:php:5.5.4:*:*:*:*:*:*:*
cpe:2.3:a:php:php:5.5.5:*:*:*:*:*:*:*
cpe:2.3:a:php:php:5.5.6:*:*:*:*:*:*:*
cpe:2.3:a:php:php:5.5.7:*:*:*:*:*:*:*
cpe:2.3:a:php:php:5.5.8:*:*:*:*:*:*:*
cpe:2.3:a:php:php:5.5.9:*:*:*:*:*:*:*
cpe:2.3:a:php:php:5.5.10:*:*:*:*:*:*:*
cpe:2.3:a:php:php:5.5.11:*:*:*:*:*:*:*
cpe:2.3:a:php:php:5.5.12:*:*:*:*:*:*:*
cpe:2.3:a:php:php:5.5.13:*:*:*:*:*:*:*
cpe:2.3:a:php:php:5.5.14:*:*:*:*:*:*:*
cpe:2.3:a:php:php:5.5.15:*:*:*:*:*:*:*
cpe:2.3:a:php:php:5.5.16:*:*:*:*:*:*:*
cpe:2.3:a:php:php:5.5.17:*:*:*:*:*:*:*
cpe:2.3:a:php:php:5.5.18:*:*:*:*:*:*:*
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:5.5.22:*:*:*:*:*:*:*
cpe:2.3:a:php:php:5.5.23:*:*:*:*:*:*:*
cpe:2.3:a:php:php:5.5.24:*:*:*:*:*:*:*
cpe:2.3:a:php:php:5.5.25:*:*:*:*:*:*:*
cpe:2.3:a:php:php:5.5.26:*:*:*:*:*:*:*
cpe:2.3:a:php:php:5.5.27:*:*:*:*:*:*:*
cpe:2.3:a:php:php:5.5.28:*:*:*:*:*:*:*

Remediation

No remediation found in references.

Change History

13 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
May 6, 2026	Status Change	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Nov 7, 2023	CVE Source Update	[email protected]
Nov 7, 2023	CVE Modified	[email protected]
Nov 4, 2017	CVE Modified	[email protected]
Sep 17, 2017	CVE Modified	[email protected]
Nov 30, 2016	CVE Modified	[email protected]
Nov 28, 2016	CVE Modified	[email protected]
May 18, 2016	Modified Analysis	[email protected]
May 18, 2016	CVE Translated	[email protected]
May 16, 2016	Initial Analysis	[email protected]