Python up to 2.7.14/3.4.8/3.5.5 difflibIS_LINE_JUNK resource management

CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Python up to 2.7.14/3.4.8/3.5.5. The affected element is the function difflibIS_LINE_JUNK. This manipulation causes resource management. This vulnerability appears as CVE-2018-1061. The attack may be initiated remotely. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Python up to 2.7.14/3.4.8/3.5.5 (Programming Language Software). It has been declared as problematic. Affected by this vulnerability is the function difflibIS_LINE_JUNK. The manipulation with an unknown input leads to a resource management vulnerability. The CWE definition for the vulnerability is CWE-399. As an impact it is known to affect availability. The summary by CVE is:

python before versions 2.7.15, 3.4.9, 3.5.6 and 3.7.0 is vulnerable to catastrophic backtracking in the difflib.IS_LINE_JUNK method. An attacker could use this flaw to cause denial of service.

The bug was discovered 06/14/2018. The weakness was presented 06/19/2018 (Website). The advisory is shared at bugs.python.org. This vulnerability is known as CVE-2018-1061 since 12/04/2017. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 109594 (FreeBSD : python 2.7 -- multiple vulnerabilities (8719b935-8bae-41ad-92ba-3c826f651219)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 157837 (Oracle Enterprise Linux Security Update for python (ELSA-2018-3041)).

Upgrading to version 2.7.15, 3.4.9, 3.5.6 or 3.7.0 eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (109594) and SecurityFocus (BID 105396†). See VDB-89749, VDB-90431, VDB-90939 and VDB-95695 for similar entries. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 6.5
CNA Vector (Red Hat, Inc.): 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 109594
Nessus Name: FreeBSD : python 2.7 -- multiple vulnerabilities (8719b935-8bae-41ad-92ba-3c826f651219)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 54640
OpenVAS Name: Fedora Update for python3 FEDORA-2018-a042f795b2
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Python 2.7.15/3.4.9/3.5.6/3.7.0

Timelineinfo

12/04/2017 🔍
05/05/2018 +152 days 🔍
05/07/2018 +2 days 🔍
06/14/2018 +38 days 🔍
06/19/2018 +4 days 🔍
06/19/2018 +0 days 🔍
06/19/2018 +0 days 🔍
09/22/2018 +95 days 🔍
03/28/2023 +1648 days 🔍

Sourcesinfo

Advisory: RHSA-2018:3041
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-1061 (🔍)
GCVE (CVE): GCVE-0-2018-1061
GCVE (VulDB): GCVE-100-119653

OVAL: 🔍

SecurityFocus: 105396 - Python CVE-2018-14647 Remote Denial of Service Vulnerability
SecurityTracker: 1042001

See also: 🔍

Entryinfo

Created: 06/19/2018 21:22
Updated: 03/28/2023 07:20
Changes: 06/19/2018 21:22 (75), 02/20/2020 09:05 (4), 03/28/2023 07:14 (5), 03/28/2023 07:20 (11)
Complete: 🔍
Cache ID: 216:952:103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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