CVEvulnerability
CVE-2015-6835
9.8 CRITICAL
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- Status
- Modified
- Published
- 2016-05-16
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.0 ([email protected])
- 9.8 CRITICAL — CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 7.5 HIGH — AV:N/AC:L/Au:N/C:P/I:P/A:P
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.
Affected configurations
• php php 5.6.0
• php php 5.6.1
• php php 5.6.2
• php php 5.6.3
• php php 5.6.4
• php php 5.6.5
• php php 5.6.6
• php php 5.6.7
• php php 5.6.8
• php php 5.6.9
• php php 5.6.10
• php php 5.6.11
• php php 5.6.12
• php php (<= 5.4.44)
• php php 5.5.0
• php php 5.5.1
• php php 5.5.2
• php php 5.5.3
• php php 5.5.4
• php php 5.5.5
• php php 5.5.6
• php php 5.5.7
• php php 5.5.8
• php php 5.5.9
• php php 5.5.10
• php php 5.5.11
• php php 5.5.12
• php php 5.5.13
• php php 5.5.14
• php php 5.5.15
• php php 5.5.16
• php php 5.5.17
• php php 5.5.18
• php php 5.5.19
• php php 5.5.20
• php php 5.5.21
• php php 5.5.22
• php php 5.5.23
• php php 5.5.24
• php php 5.5.25
• php php 5.5.26
• php php 5.5.27
• php php 5.5.28
References
- http://php.net/ChangeLog-5.php php.net
- http://www.debian.org/security/2015/dsa-3358 www.debian.org
- http://www.securityfocus.com/bid/76734 www.securityfocus.com
- http://www.securitytracker.com/id/1033548 www.securitytracker.com
- https://bugs.php.net/bug.php?id=70219 bugs.php.net
- https://security.gentoo.org/glsa/201606-10 security.gentoo.org
- http://php.net/ChangeLog-5.php php.net
- http://www.debian.org/security/2015/dsa-3358 www.debian.org
- http://www.securityfocus.com/bid/76734 www.securityfocus.com
- http://www.securitytracker.com/id/1033548 www.securitytracker.com
- https://bugs.php.net/bug.php?id=70219 bugs.php.net
- https://security.gentoo.org/glsa/201606-10 security.gentoo.org