CVE-2001-1593
First published: Sun Feb 02 2014(Updated: )
Jakub Wilk found that a2ps, a tool to convert text and other types of files to PostScript, insecurely used a temporary file in spy_user(). A local attacker could use this flaw to perform a symbolic link attack to modify an arbitrary file accessible to the user running a2ps. The original report in the Debian bug tracking system (<a href="http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=737385">http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=737385</a>) notes the issue is in src/main.c: 559 tempname_ensure (job->tmp_filenames[0]); 560 spyname = job->tmp_filenames[0]; 561 spy = fopen (spyname, "w"); And also notes there are other calls to tempname_ensure().
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| GNU a2ps | =4.12 | |
| GNU a2ps | <=4.14 | |
| GNU a2ps | =4.13b | |
| GNU a2ps | =4.10.3 | |
| GNU a2ps | =4.13 | |
| GNU a2ps | =4.10.4 | |
| debian/a2ps | 1:4.14-7 1:4.14-8 1:4.15.6-1 |
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Reference Links
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=737385
- https://bugzilla.redhat.com/show_bug.cgi?id=1060630
- https://bugzilla.redhat.com/show_bug.cgi?id=1060630#c5
- http://pkgs.fedoraproject.org/cgit/a2ps.git/plain/a2ps-4.13-security.patch
- http://pkgs.fedoraproject.org/cgit/a2ps.git/log/?ofs=100
- https://bugzilla.redhat.com/show_bug.cgi?id=27155
- http://cve.mitre.org/cve/request_id.html
- https://security-tracker.debian.org/tracker/CVE-2001-1593
- https://security-tracker.debian.org/tracker/CVE-2011-1593
- https://security-tracker.debian.org/tracker/CVE-2014-0466
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=737385
- http://www.openwall.com/lists/oss-security/2014/02/03/9
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1060632
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1060633
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=27155
- http://seclists.org/oss-sec/2014/q1/253
- http://www.debian.org/security/2014/dsa-2892
- http://seclists.org/oss-sec/2014/q1/237
- http://seclists.org/oss-sec/2014/q1/257
Frequently Asked Questions
What is the severity of CVE-2001-1593?
CVE-2001-1593 is considered a medium severity vulnerability due to the potential for local attackers to exploit it.
How do I fix CVE-2001-1593?
To fix CVE-2001-1593, upgrade a2ps to version 4.14 or later.
Who is affected by CVE-2001-1593?
CVE-2001-1593 affects users of GNU a2ps versions 4.10.3, 4.10.4, 4.13, 4.13b, and 4.12.
What type of attack does CVE-2001-1593 enable?
CVE-2001-1593 enables local attackers to perform symbolic link attacks.
Is CVE-2001-1593 a remote vulnerability?
No, CVE-2001-1593 is not a remote vulnerability; it requires local access to exploit.
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