VDB-113953 · CVE-2017-18207 · Qualys 171284

Python up to 3.6.4 WAV File Lib/wave.py Wave_read_read_fmt_chunk divide by zero

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

A vulnerability has been found in Python up to 3.6.4 (Programming Language Software) and classified as problematic. Affected by this vulnerability is the function Wave_read_read_fmt_chunk in the library Lib/wave.py of the component WAV File Handler. The manipulation with an unknown input leads to a divide by zero vulnerability. The CWE definition for the vulnerability is CWE-369. The product divides a value by zero. As an impact it is known to affect availability. The summary by CVE is:

The Wave_read._read_fmt_chunk function in Lib/wave.py in Python through 3.6.4 does not ensure a nonzero channel value, which allows attackers to cause a denial of service (divide-by-zero error and application crash) via a crafted wav format audio file.

The weakness was presented 03/01/2018 (Website). The advisory is shared at bugs.python.org. This vulnerability is known as CVE-2017-18207 since 02/28/2018. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 109028 (SUSE SLED12 / SLES12 Security Update : python3 (SUSE-SU-2018:0934-1)), 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 171284 (SUSE Enterprise Linux Security Update for python (SUSE-SU-2018:2040-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 2 months after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (109028).

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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Exploitinginfo

Class: Divide by zero
CWE: CWE-369 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 109028
Nessus Name: SUSE SLED12 / SLES12 Security Update : python3 (SUSE-SU-2018:0934-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
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Timelineinfo

02/28/2018 🔍
03/01/2018 +1 days 🔍
03/01/2018 +0 days 🔍
03/01/2018 +0 days 🔍
04/12/2018 +42 days 🔍
04/13/2018 +1 days 🔍
01/09/2020 +636 days 🔍

Sourcesinfo

Advisory: bugs.python.org
Status: Not defined

CVE: CVE-2017-18207 (🔍)

Entryinfo

Created: 03/01/2018 17:00
Updated: 01/09/2020 15:29
Changes: 03/01/2018 17:00 (68), 01/09/2020 15:29 (5)
Complete: 🔍

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