Perl Config-IniFiles Module: Insecure temporary file usage

1. Gentoo Linux Security Advisory

Package	Vulnerable versions	Unaffected versions	Architecture(s)
dev-perl/Config-IniFiles	< 2.710.0	>= 2.710.0	All supported architectures

Related bugreports: #414485

An insecure temporary file usage has been reported in the Perl Config-IniFiles module, possibly allowing symlink attacks.

2. Impact Information

Config-IniFiles is a Perl module for reading .ini-style configuration files.

The Perl Config-IniFiles module uses predicatable temporary file names.

A local attacker could perform symlink attacks to overwrite arbitrary files with the privileges of the user running the application.

3. Resolution Information

There is no known workaround at this time.

All users of the Perl Config-IniFiles module should upgrade to the latest version:

Code Listing 3.1: Resolution

  # emerge --sync
  # emerge --ask --oneshot --verbose
  ">=dev-perl/Config-IniFiles-2.710.0"

4. References

Page updated August 14, 2012

Summary: This is a Gentoo Linux Security Advisory

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