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ChaSen: User-assisted execution of arbitrary code


1.  Gentoo Linux Security Advisory

Version Information

Advisory Reference GLSA 201207-03 / ChaSen
Release Date July 09, 2012
Latest Revision July 09, 2012: 1
Impact normal
Exploitable remote
Package Vulnerable versions Unaffected versions Architecture(s)
app-text/chasen < 2.4.4-r2 >= 2.4.4-r2 All supported architectures

Related bugreports: #390769


A buffer overflow vulnerability in ChaSen could result in the execution of arbitrary code.

2.  Impact Information


ChaSen is a Japanese morphological analysis system.


An error in chalib.c of ChaSen could cause a buffer overflow.


A remote attacker could entice a user to open a specially crafted text file using ChaSen or an application using the ChaSen libraries, possibly resulting in execution of arbitrary code with the privileges of the process or a Denial of Service condition.

3.  Resolution Information


There is no known workaround at this time.


All ChaSen users should upgrade to the latest version:

Code Listing 3.1: Resolution

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=app-text/chasen-2.4.4-r2"

4.  References


Page updated July 09, 2012

Summary: This is a Gentoo Linux Security Advisory

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