Title: Debian feta 'to-upgrade' Plugin Insecure Temporary File Creation Vulnerability
Severity: LOW
Description:
Debian feta is a frontend to multiple package-management tools, including dpkg, APT, and debconf.
feta creates temporary files in an insecure manner.
The issue occurs because the 'plugins/to-upgrade' script creates files in an insecure manner. An attacker with local access could potentially exploit this issue to 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 feta 1.4.16 and prior are vulnerable; other versions may also be affected.
Affected Products:
- Debian Feta 1.4.15
- Debian Feta 1.4.16
- Debian Linux 4.0
- Debian Linux 4.0 alpha
- Debian Linux 4.0 amd64
- Debian Linux 4.0 arm
- Debian Linux 4.0 hppa
- Debian Linux 4.0 ia-32
- Debian Linux 4.0 ia-64
- Debian Linux 4.0 m68k
- Debian Linux 4.0 mips
- Debian Linux 4.0 mipsel
- Debian Linux 4.0 powerpc
- Debian Linux 4.0 s/390
- Debian Linux 4.0 sparc
References:
- Debian: #496397 - The possibility of attack with the help of symlinks in some Debian pac
- Debian: Debian Feta
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