Home/CVE/Use-after-free vulnerability in the process_nested_data function in ext/standard/var_unserializer.re in PHP before 5.4.3
CVE

CVE-2015-2787

Use-after-free vulnerability in the process_nested_data function in ext/standard/var_unserializer.re in PHP before 5.4.3

Use-after-free vulnerability in the process_nested_data function in ext/standard/var_unserializer.re in PHP before 5.4.39, 5.5.x before 5.5.23, and 5.6.x before 5.6.7 allows remote attackers to execute arbitrary code via a crafted unserialize call that leverages use of the unset function within an __wakeup function, a related issue to CVE-2015-0231.

HIGH · CVSS 7.5 EPSS 0.26397
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  • EPSS ≥ 0.10 - elevated exploitation probability
  • EPSS percentile: top 4% of all CVEs by exploitation likelihood
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0

Affected Products & Versions

6
php<= 5.4.38
phpall versions
apple mac os xall versions

Public Exploits & PoCs

1

Scoring & Timeline

7.5
HIGH · CVSS v2 (legacy) · cve@mitre.org
View on NVD
This CVE predates CVSS v3; the legacy v2 score is shown so triage still has a severity to work with.
v2 Vector
AV:N/AC:L/Au:N/C:P/I:P/A:P
Published to NVD30 Mar 2015 · 10:59 AM

Vendor Advisories

12
suse-csafSUSE-SU-2016:1638-1
rhsaRHSA-2015:1218Moderate
rhsaRHSA-2015:1135Moderate
rhsaRHSA-2015:1066Moderate
suse-csafSUSE-SU-2015:0868-1
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