National Vulnerability Database

National Vulnerability Database

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    Vulnerabilities Detail

CVE-2018-1061 Detail

Current Description

python before versions 2.7.15, 3.4.9, 3.5.6rc1, 3.6.5rc1 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.

Source:  MITRE
Description Last Modified:  08/17/2018
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 7.5 HIGH
Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H (V3 legend)
Impact Score: 3.6
Exploitability Score: 3.9

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 5.0 MEDIUM
Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 10.0

Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Partial
Additional Information:
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.securitytracker.com/id/1042001
https://access.redhat.com/errata/RHSA-2018:3041
https://access.redhat.com/errata/RHSA-2018:3505
https://bugs.python.org/issue32981 Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1061 Issue Tracking
https://docs.python.org/3.5/whatsnew/changelog.html#python-3-5-6-release-candidate-1 Vendor Advisory
https://docs.python.org/3.6/whatsnew/changelog.html#python-3-6-5-release-candidate-1 Vendor Advisory
https://lists.debian.org/debian-lts-announce/2018/09/msg00030.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/09/msg00031.html Mailing List Third Party Advisory
https://usn.ubuntu.com/3817-1/
https://usn.ubuntu.com/3817-2/
https://www.debian.org/security/2018/dsa-4306 Third Party Advisory
https://www.debian.org/security/2018/dsa-4307 Third Party Advisory

Technical Details

Vulnerability Type (View All)

  • Resource Management Errors (CWE-399)

Change History

10 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-1061
NVD Published Date:
06/19/2018
NVD Last Modified:
11/16/2018