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Amazon Linux Local Check: ALAS-2014-358
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
Amazon Linux Local Security Checks
Insight
Insight
It was found [1] that the Capture::Tiny module, provided by the perl-Capture-Tiny package, used the File::temp::tmpnam module to generate temporary files:./lib/Capture/Tiny.pm: $stash->{flag_files}{$which} = scalar tmpnam() This module makes use of the mktemp() function when called in the scalar context, which creates significantly more predictable temporary files. Additionally, the temporary file is created with world-writable (0666) permission. A local attacker could use this flaw to perform a symbolic link attack, overwriting arbitrary files accessible to a program using the Capture::Tiny module.
Solution
Solution
Run yum update perl-Capture-Tiny to update your system.