Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Informations
Name CVE-2018-1000030 First vendor Publication 2018-02-08
Vendor Cve Last vendor Modification 2020-08-24

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:L
Overall CVSS Score 3.6
Base Score 3.6 Environmental Score 3.6
impact SubScore 2.5 Temporal Score 3.6
Exploitabality Sub Score 1
 
Attack Vector Local Attack Complexity High
Privileges Required Low User Interaction None
Scope Unchanged Confidentiality Impact Low
Integrity Impact None Availability Impact Low
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:M/Au:N/C:P/I:N/A:P)
Cvss Base Score 3.3 Attack Range Local
Cvss Impact Score 4.9 Attack Complexity Medium
Cvss Expoit Score 3.4 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Python 2.7.14 is vulnerable to a Heap-Buffer-Overflow as well as a Heap-Use-After-Free. Python versions prior to 2.7.14 may also be vulnerable and it appears that Python 2.7.17 and prior may also be vulnerable however this has not been confirmed. The vulnerability lies when multiply threads are handling large amounts of data. In both cases there is essentially a race condition that occurs. For the Heap-Buffer-Overflow, Thread 2 is creating the size for a buffer, but Thread1 is already writing to the buffer without knowing how much to write. So when a large amount of data is being processed, it is very easy to cause memory corruption using a Heap-Buffer-Overflow. As for the Use-After-Free, Thread3->Malloc->Thread1->Free's->Thread2-Re-uses-Free'd Memory. The PSRT has stated that this is not a security vulnerability due to the fact that the attacker must be able to run code, however in some situations, such as function as a service, this vulnerability can potentially be used by an attacker to violate a trust boundary, as such the DWF feels this issue deserves a CVE.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1000030

CWE : Common Weakness Enumeration

% Id Name
50 % CWE-787 Out-of-bounds Write (CWE/SANS Top 25)
50 % CWE-416 Use After Free

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 83
Os 4

Nessus® Vulnerability Scanner

Date Description
2018-11-09 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-201811-02.nasl - Type : ACT_GATHER_INFO
2018-08-17 Name : The remote PhotonOS host is missing multiple security updates.
File : PhotonOS_PHSA-2018-1_0-0125.nasl - Type : ACT_GATHER_INFO
2018-07-24 Name : The remote PhotonOS host is missing multiple security updates.
File : PhotonOS_PHSA-2018-2_0-0037.nasl - Type : ACT_GATHER_INFO
2018-05-02 Name : The remote EulerOS host is missing a security update.
File : EulerOS_SA-2018-1078.nasl - Type : ACT_GATHER_INFO

Sources (Detail)

Source Url
CONFIRM https://bugs.python.org/issue31530
GENTOO https://security.gentoo.org/glsa/201811-02
MISC https://drive.google.com/file/d/1oyR9DAZjZK_SCn3mor6NRAYLJS6ueXaY/view
https://www.dropbox.com/sh/sj3ee7xv55j36k7/AADwP-YfOYikBMuy32e0uvPFa?dl=0
https://www.oracle.com/security-alerts/cpujan2020.html
UBUNTU https://usn.ubuntu.com/3817-1/
https://usn.ubuntu.com/3817-2/

Alert History

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Date Informations
2024-02-02 01:50:29
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2023-09-05 12:48:25
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2023-09-05 01:13:59
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2023-09-02 01:14:15
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2023-08-12 12:51:41
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2023-08-11 12:45:59
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2023-07-14 12:44:49
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2023-07-14 01:13:37
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2023-03-29 01:46:26
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2022-10-11 12:40:11
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2022-10-11 01:13:38
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2021-05-04 13:07:32
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2021-04-22 02:21:27
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2020-09-03 01:20:35
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2020-05-23 02:09:36
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2020-05-23 01:05:20
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2019-10-10 05:20:14
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2019-07-23 01:00:33
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2019-03-27 00:19:05
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2018-11-16 17:19:06
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2018-11-14 17:19:20
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2018-11-09 17:19:07
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2018-08-11 12:02:30
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2018-05-16 12:06:50
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2018-03-10 21:19:21
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2018-02-08 21:20:36
  • First insertion