PHP up to 5.5.26 ext/spl/spl_heap.c SplMinHeap::compare use after free
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
9.6 | $0-$5k | 0.00 |
A vulnerability was found in PHP up to 5.5.26 (Programming Language Software). It has been classified as very critical. This affects the function SplMinHeap::compare
of the file ext/spl/spl_heap.c. The manipulation with an unknown input leads to a use after free vulnerability. CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:
Use-after-free vulnerability in the spl_ptr_heap_insert function in ext/spl/spl_heap.c in PHP before 5.5.27 and 5.6.x before 5.6.11 allows remote attackers to execute arbitrary code by triggering a failed SplMinHeap::compare operation.
The weakness was published 05/16/2016 (Website). The advisory is shared at htbridge.com. This vulnerability is uniquely identified as CVE-2015-4116 since 05/28/2015. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 08/19/2022).
The vulnerability scanner Nessus provides a plugin with the ID 91531 (openSUSE Security Update : php5 (openSUSE-2016-696)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 168907 (OpenSuSE Security Update for php5 (openSUSE-SU-2016:1553-1)).
Upgrading to version 5.5.27 eliminates this vulnerability. A possible mitigation has been published 4 weeks after the disclosure of the vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (91531).
Product
Type
Name
Version
- 5.5.0
- 5.5.1
- 5.5.2
- 5.5.3
- 5.5.4
- 5.5.5
- 5.5.6
- 5.5.7
- 5.5.8
- 5.5.9
- 5.5.10
- 5.5.11
- 5.5.12
- 5.5.13
- 5.5.14
- 5.5.15
- 5.5.16
- 5.5.17
- 5.5.18
- 5.5.19
- 5.5.20
- 5.5.21
- 5.5.22
- 5.5.23
- 5.5.24
- 5.5.25
- 5.5.26
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 9.8VulDB Meta Temp Score: 9.6
VulDB Base Score: 9.8
VulDB Temp Score: 9.4
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 9.8
NVD Vector: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Use after freeCWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Nessus ID: 91531
Nessus Name: openSUSE Security Update : php5 (openSUSE-2016-696)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
OpenVAS ID: 103104
OpenVAS Name: PHP Arbitrary Code Execution Vulnerability - Aug16 (Windows)
OpenVAS File: 🔍
OpenVAS Family: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Upgrade: PHP 5.5.27
Patch: 1cbd25ca15383394ffa9ee8601c5de4c0f2f90e1
Timeline
05/28/2015 🔍05/16/2016 🔍
05/16/2016 🔍
05/17/2016 🔍
06/08/2016 🔍
06/09/2016 🔍
08/19/2022 🔍
Sources
Product: php.orgAdvisory: 69737
Status: Not defined
Confirmation: 🔍
CVE: CVE-2015-4116 (🔍)
Entry
Created: 05/17/2016 10:30Updated: 08/19/2022 14:11
Changes: 05/17/2016 10:30 (64), 11/27/2018 10:40 (12), 08/19/2022 14:11 (5)
Complete: 🔍
Cache ID: 18:DC4:103
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