Executive Summary

Summary
Title txt2man vulnerability
Informations
Name USN-1979-1 First vendor Publication 2013-09-30
Vendor Ubuntu Last vendor Modification 2013-09-30
Severity (Vendor) N/A Revision N/A

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:M/Au:N/C:N/I:P/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

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 13.04 - Ubuntu 12.10 - Ubuntu 12.04 LTS

Summary:

txt2man could be made to overwrite files.

Software Description: - txt2man: Converts flat ASCII text to man page format

Details:

Patrick J Cherry discovered that txt2man contained leftover debugging code that incorrectly created a temporary file. A local attacker could possibly use this issue to overwrite arbitrary files. In the default Ubuntu installation, this should be prevented by the Yama link restrictions.

Update instructions:

The problem can be corrected by updating your system to the following package versions:

Ubuntu 13.04:
txt2man 1.5.5-4ubuntu0.13.04.1

Ubuntu 12.10:
txt2man 1.5.5-4ubuntu0.12.10.1

Ubuntu 12.04 LTS:
txt2man 1.5.5-4ubuntu0.12.04.1

In general, a standard system update will make all the necessary changes.

References:
http://www.ubuntu.com/usn/usn-1979-1
CVE-2013-1444

Package Information:
https://launchpad.net/ubuntu/+source/txt2man/1.5.5-4ubuntu0.13.04.1
https://launchpad.net/ubuntu/+source/txt2man/1.5.5-4ubuntu0.12.10.1
https://launchpad.net/ubuntu/+source/txt2man/1.5.5-4ubuntu0.12.04.1

Original Source

Url : http://www.ubuntu.com/usn/USN-1979-1

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-59 Improper Link Resolution Before File Access ('Link Following')

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:19077
 
Oval ID: oval:org.mitre.oval:def:19077
Title: USN-1979-1 -- txt2man vulnerability
Description: txt2man could be made to overwrite files.
Family: unix Class: patch
Reference(s): USN-1979-1
CVE-2013-1444
Version: 5
Platform(s): Ubuntu 13.04
Ubuntu 12.10
Ubuntu 12.04
Product(s): txt2man
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 2
Application 1

Nessus® Vulnerability Scanner

Date Description
2013-10-01 Name : The remote Ubuntu host is missing a security-related patch.
File : ubuntu_USN-1979-1.nasl - Type : ACT_GATHER_INFO

Alert History

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0
1
2
3
Date Informations
2014-02-17 12:02:34
  • Multiple Updates
2013-10-01 21:23:32
  • Multiple Updates
2013-10-01 17:23:16
  • Multiple Updates
2013-09-30 21:21:05
  • First insertion