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CVE-2015-6835 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 cau...

CriticalCVSS 9.8 EPSS 36.2%
Published
Updated
Exploit status
No public exploit known

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 products

ProductAffected versionsFixed in
PHP = 5.6.0-alpha1 No fix listed
PHP = 5.6.0-alpha2 No fix listed
PHP = 5.6.0-alpha3 No fix listed
PHP = 5.6.0-alpha4 No fix listed
PHP = 5.6.0-alpha5 No fix listed
PHP = 5.6.0-beta1 No fix listed
PHP = 5.6.0-beta2 No fix listed
PHP = 5.6.0-beta3 No fix listed
PHP = 5.6.0-beta4 No fix listed
PHP = 5.6.1 No fix listed
PHP = 5.6.2 No fix listed
PHP = 5.6.3 No fix listed
PHP = 5.6.4 No fix listed
PHP = 5.6.5 No fix listed
PHP = 5.6.6 No fix listed
PHP = 5.6.7 No fix listed
PHP = 5.6.8 No fix listed
PHP = 5.6.9 No fix listed
PHP = 5.6.10 No fix listed
PHP = 5.6.11 No fix listed
PHP = 5.6.12 No fix listed
PHP <= 5.4.44 No fix listed
PHP = 5.5.0 No fix listed
PHP = 5.5.0-alpha1 No fix listed
PHP = 5.5.0-alpha2 No fix listed
Show 38 more
ProductAffected versionsFixed in
PHP = 5.5.0-alpha3 No fix listed
PHP = 5.5.0-alpha4 No fix listed
PHP = 5.5.0-alpha5 No fix listed
PHP = 5.5.0-alpha6 No fix listed
PHP = 5.5.0-beta1 No fix listed
PHP = 5.5.0-beta2 No fix listed
PHP = 5.5.0-beta3 No fix listed
PHP = 5.5.0-beta4 No fix listed
PHP = 5.5.0-rc1 No fix listed
PHP = 5.5.0-rc2 No fix listed
PHP = 5.5.1 No fix listed
PHP = 5.5.2 No fix listed
PHP = 5.5.3 No fix listed
PHP = 5.5.4 No fix listed
PHP = 5.5.5 No fix listed
PHP = 5.5.6 No fix listed
PHP = 5.5.7 No fix listed
PHP = 5.5.8 No fix listed
PHP = 5.5.9 No fix listed
PHP = 5.5.10 No fix listed
PHP = 5.5.11 No fix listed
PHP = 5.5.12 No fix listed
PHP = 5.5.13 No fix listed
PHP = 5.5.14 No fix listed
PHP = 5.5.15 No fix listed
PHP = 5.5.16 No fix listed
PHP = 5.5.17 No fix listed
PHP = 5.5.18 No fix listed
PHP = 5.5.19 No fix listed
PHP = 5.5.20 No fix listed
PHP = 5.5.21 No fix listed
PHP = 5.5.22 No fix listed
PHP = 5.5.23 No fix listed
PHP = 5.5.24 No fix listed
PHP = 5.5.25 No fix listed
PHP = 5.5.26 No fix listed
PHP = 5.5.27 No fix listed
PHP = 5.5.28 No fix listed

References