Title: pdftops.pl Alternate pdftops Filter for CUPS Insecure Temporary File Creation Vulnerability
Severity: MODERATE
Description:
The 'pdftops.pl' script is an alternate pdftops filter for CUPS. It is a Perl script that wraps the xpdf pdftops utility to act as a CUPS filter.
The application is prone to a security vulnerability because it creates temporary files in an insecure manner. The issue presents itself because the 'files/pdftops.pl' script creates insecure temporary files with predictable names according to the following pattern: '$TMPDIR/pdfin.$$.tmp'.
An attacker with local access could potentially exploit this issue to perform symlink attacks.
Successfully mounting a symlink attack may allow the attacker to overwrite, delete, or corrupt sensitive files in the context of the affected application, which may result in a denial of service. Other attacks may also be possible.
This issue affects versions prior to pdftops.pl 1.20.
Affected Products:
- 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
- Gentoo Linux
- Ubuntu Ubuntu Linux 6.06 LTS amd64
- Ubuntu Ubuntu Linux 6.06 LTS i386
- Ubuntu Ubuntu Linux 6.06 LTS powerpc
- Ubuntu Ubuntu Linux 6.06 LTS sparc
- Ubuntu Ubuntu Linux 6.10 amd64
- Ubuntu Ubuntu Linux 6.10 i386
- Ubuntu Ubuntu Linux 6.10 powerpc
- Ubuntu Ubuntu Linux 6.10 sparc
- Ubuntu Ubuntu Linux 7.04 amd64
- Ubuntu Ubuntu Linux 7.04 i386
- Ubuntu Ubuntu Linux 7.04 powerpc
- Ubuntu Ubuntu Linux 7.04 sparc
- Ubuntu Ubuntu Linux 7.10 amd64
- Ubuntu Ubuntu Linux 7.10 i386
- Ubuntu Ubuntu Linux 7.10 powerpc
- Ubuntu Ubuntu Linux 7.10 sparc
- pdftops.pl pdftops.pl 1.00
- pdftops.pl pdftops.pl 1.10
References:
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