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 cause a denial of service (use-after-free) via crafted session content.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
microfocusCNA
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---
CVEADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 95%
VendorProductVersion
phpphp
5.6.0:alpha1
phpphp
5.6.0:alpha2
phpphp
5.6.0:alpha3
phpphp
5.6.0:alpha4
phpphp
5.6.0:alpha5
phpphp
5.6.0:beta1
phpphp
5.6.0:beta2
phpphp
5.6.0:beta3
phpphp
5.6.0:beta4
phpphp
5.6.1
phpphp
5.6.2
phpphp
5.6.3
phpphp
5.6.4
phpphp
5.6.5
phpphp
5.6.6
phpphp
5.6.7
phpphp
5.6.8
phpphp
5.6.9
phpphp
5.6.10
phpphp
5.6.11
phpphp
5.6.12
phpphp
𝑥
≤ 5.4.44
phpphp
5.5.0
phpphp
5.5.0:alpha1
phpphp
5.5.0:alpha2
phpphp
5.5.0:alpha3
phpphp
5.5.0:alpha4
phpphp
5.5.0:alpha5
phpphp
5.5.0:alpha6
phpphp
5.5.0:beta1
phpphp
5.5.0:beta2
phpphp
5.5.0:beta3
phpphp
5.5.0:beta4
phpphp
5.5.0:rc1
phpphp
5.5.0:rc2
phpphp
5.5.1
phpphp
5.5.2
phpphp
5.5.3
phpphp
5.5.4
phpphp
5.5.5
phpphp
5.5.6
phpphp
5.5.7
phpphp
5.5.8
phpphp
5.5.9
phpphp
5.5.10
phpphp
5.5.11
phpphp
5.5.12
phpphp
5.5.13
phpphp
5.5.14
phpphp
5.5.15
phpphp
5.5.16
phpphp
5.5.17
phpphp
5.5.18
phpphp
5.5.19
phpphp
5.5.20
phpphp
5.5.21
phpphp
5.5.22
phpphp
5.5.23
phpphp
5.5.24
phpphp
5.5.25
phpphp
5.5.26
phpphp
5.5.27
phpphp
5.5.28
𝑥
= Vulnerable software versions
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
php5
vivid
Fixed 5.6.4+dfsg-4ubuntu6.3
released
trusty
Fixed 5.5.9+dfsg-1ubuntu4.13
released
precise
Fixed 5.3.10-1ubuntu3.20
released