Title: Debian mh-book Insecure Temporary File Creation Vulnerability
Severity: LOW
Description:
Debian mh-book creates temporary files in an insecure manner. The issue occurs in the 'inmail-show' script. Insecure files are created with a '.log' or '.stdin' extension in the '/tmp/inmail' directory.
An attacker with local access could perform symbolic-link attacks, overwriting arbitrary files in the context of the affected application.
Successfully mounting a symlink attack may allow the attacker to delete or corrupt sensitive files, which may result in a denial of service. Other attacks may also be possible.
Debian mh-book 200605-1 is vulnerable; other versions may also be affected.
Affected Products:
- Debian mh-book 200605-1
References:
- Debian: mh-book
- Dmitry E. Oboukhov: Re: Possible mass bug filing: The possibility of attack with the help of symlink
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