Title: Aladdin Ghostscript File Read Vulnerability
Severity: MODERATE
Description:
Ghostscript is a postscript interpreter. It supports scripting commands allowing it to open and read files. When it is used in a spooling context, it is able to open and read files as user lp, potentially exposing sensitive information.
Although ghostscript has a -dSAFER flag to provide additional security, this is designed to protect a user from malicious postscript files, not to protect the system from a malicious user. As such, this flag does not prevent opening and reading files.
If the -dSAFER flag is not used, it is also possible to write and execute files.
Affected Products:
- Aladdin Enterprises Ghostscript 4.3.0
- Aladdin Enterprises Ghostscript 5.50.0
- HP Secure OS software for Linux 1.0.0
- RedHat Linux 5.2.0 alpha
- RedHat Linux 5.2.0 i386
- RedHat Linux 5.2.0 sparc
- RedHat Linux 6.2.0 alpha
- RedHat Linux 6.2.0 i386
- RedHat Linux 6.2.0 sparc
- RedHat Linux 7.0.0 J i386
- RedHat Linux 7.0.0 alpha
- RedHat Linux 7.0.0 i386
- RedHat Linux 7.0.0 sparc
- RedHat Linux 7.1.0 alpha
- RedHat Linux 7.1.0 i386
- RedHat Linux 7.1.0 ia64
References:
- Papowell <papowell@astart.com>: LPRng: SECURITY BULLETIN - GhostScript -dSAFER does not prevent file access
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