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Category:   Application (Generic)  >   Python Vendors:   Python.org
Python Backtracking Errors Let Remote Authenticated Users Cause the Target System to Crash
SecurityTracker Alert ID:  1042001
SecurityTracker URL:  http://securitytracker.com/id/1042001
CVE Reference:   CVE-2018-1060, CVE-2018-1061   (Links to External Site)
Date:  Oct 30 2018
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   Two vulnerabilities were reported in Python. A remote authenticated user can cause the target system to crash.

A remote authenticated user can trigger a denial of service condition via backtracking in 'difflib.IS_LINE_JUNK' method in difflib [CVE-2018-1061].

A remote authenticated user can trigger a denial of service condition via backtracking in 'apop()' method in pop3lib [CVE-2018-1060].

Impact:   A remote authenticated user can cause the target system to crash.
Solution:   Red Hat has issued a fix.

The Red Hat advisory is available at:

https://access.redhat.com/errata/RHSA-2018:3041

Vendor URL:  access.redhat.com/errata/RHSA-2018:3041 (Links to External Site)
Cause:   Access control error
Underlying OS:  Linux (Any), UNIX (Any), Windows (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Nov 12 2018 (Oracle Issues Fix for Oracle Linux) Python Backtracking Errors Let Remote Authenticated Users Cause the Target System to Crash
Oracle has issued a fix for Oracle Linux 7.
Nov 13 2018 (Ubuntu Issues Fix) Python Backtracking Errors Let Remote Authenticated Users Cause the Target System to Crash
Ubuntu has issued a fix for Ubuntu Linux 14.04 LTS, 16.04 LTS, and 18.04 LTS.
Nov 16 2018 (Ubuntu Issues Fix) Python Backtracking Errors Let Remote Authenticated Users Cause the Target System to Crash
Ubuntu has issued a fix for Ubuntu Linux 12.04 ESM.



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