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Vulnerability details: VCID-uzjm-61qc-aaap
Vulnerability ID VCID-uzjm-61qc-aaap
Aliases CVE-2015-6834
Summary Multiple use-after-free vulnerabilities in PHP before 5.4.45, 5.5.x before 5.5.29, and 5.6.x before 5.6.13 allow remote attackers to execute arbitrary code via vectors related to (1) the Serializable interface, (2) the SplObjectStorage class, and (3) the SplDoublyLinkedList class, which are mishandled during unserialization.
Status Published
Exploitability 2.0
Weighted Severity 8.8
Risk 10.0
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-416 Use After Free
System Score Found at
generic_textual Medium http://people.canonical.com/~ubuntu-security/cve/2015/CVE-2015-6834.html
generic_textual Medium http://php.net/ChangeLog-5.php
rhas Moderate https://access.redhat.com/errata/RHSA-2016:0457
epss 0.20110 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.20110 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.20110 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.20110 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.20110 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.20110 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.20110 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.20110 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.20110 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.20110 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.20110 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.20110 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.20110 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.2949 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.2949 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.2949 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.2949 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.2949 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.2949 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.29979 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.32801 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.32801 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.32801 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.32801 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.32801 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.32801 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.32801 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.32801 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.32801 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.32801 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.32801 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.32801 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.32801 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.32801 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.32801 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.32801 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.32801 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.32801 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.32801 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.32801 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.32801 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.32801 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.32801 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.32801 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.32801 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.32801 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.32801 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.32801 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.32801 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.32801 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.32801 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.32801 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.32801 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.32801 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.32801 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.32801 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.37239 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.44988 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.44988 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.44988 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.44988 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.44988 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.44988 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.44988 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.44988 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.44988 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.44988 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.44988 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
epss 0.49556 https://api.first.org/data/v1/epss?cve=CVE-2015-6834
rhbs low https://bugzilla.redhat.com/show_bug.cgi?id=1260642
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-6834
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-6835
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-6836
generic_textual Low https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-6837
generic_textual Low https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-6838
cvssv2 7.5 https://nvd.nist.gov/vuln/detail/CVE-2015-6834
cvssv3 9.8 https://nvd.nist.gov/vuln/detail/CVE-2015-6834
generic_textual Low https://ubuntu.com/security/notices/USN-2758-1
generic_textual Low http://www.openwall.com/lists/oss-security/2015/09/07/5
Reference id Reference type URL
http://people.canonical.com/~ubuntu-security/cve/2015/CVE-2015-6834.html
http://php.net/ChangeLog-5.php
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2015-6834.json
https://api.first.org/data/v1/epss?cve=CVE-2015-6834
https://bugs.php.net/bug.php?id=70172
https://bugs.php.net/bug.php?id=70365
https://bugs.php.net/bug.php?id=70366
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-6834
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-6835
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-6836
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-6837
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-6838
https://security.gentoo.org/glsa/201606-10
https://ubuntu.com/security/notices/USN-2758-1
http://www.debian.org/security/2015/dsa-3358
http://www.openwall.com/lists/oss-security/2015/09/07/5
http://www.securityfocus.com/bid/76649
http://www.securitytracker.com/id/1033548
1260642 https://bugzilla.redhat.com/show_bug.cgi?id=1260642
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cpe:2.3:a:php:php:5.5.10:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:php:php:5.5.10:*:*:*:*:*:*:*
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CVE-2015-6834 https://nvd.nist.gov/vuln/detail/CVE-2015-6834
CVE-2015-6834;OSVDB-126951 Exploit https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/php/dos/38122.txt
CVE-2015-6834;OSVDB-126954 Exploit https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/php/dos/38120.txt
RHSA-2016:0457 https://access.redhat.com/errata/RHSA-2016:0457
USN-2758-1 https://usn.ubuntu.com/2758-1/
Data source Exploit-DB
Date added Sept. 9, 2015
Description PHP 5.4/5.5/5.6 - SplObjectStorage 'Unserialize()' Use-After-Free
Ransomware campaign use Known
Source publication date Sept. 9, 2015
Exploit type dos
Platform php
Source update date Dec. 1, 2016
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2015-6834
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2015-6834
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.96466
EPSS Score 0.20110
Published At Nov. 1, 2024, midnight
Date Actor Action Source VulnerableCode Version
There are no relevant records.