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AUSCERT External Security Bulletin Redistribution
ESB-2005.0102 -- RHSA-2005:039-01
Updated enscript package fixes security issues
3 February 2005
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AusCERT Security Bulletin Summary
---------------------------------
Product: enscript
Publisher: Red Hat
Operating System: Red Hat Enterprise Linux AS/ES/WS 3
Red Hat Desktop version 3
Red Hat Enterprise Linux AS/ES/WS 2.1
Red Hat Linux Advanced Workstation 2.1
Linux variants
UNIX variants
Impact: Execute Arbitrary Code/Commands
Denial of Service
Access: Remote/Unauthenticated
CVE Names: CAN-2004-1186 CAN-2004-1185 CAN-2004-1184
Original Bulletin: https://rhn.redhat.com/errata/RHSA-2005-039.html
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Red Hat Security Advisory
Synopsis: Updated enscript package fixes security issues
Advisory ID: RHSA-2005:039-01
Advisory URL: https://rhn.redhat.com/errata/RHSA-2005-039.html
Issue date: 2005-02-01
Updated on: 2005-02-01
Product: Red Hat Enterprise Linux
CVE Names: CAN-2004-1184 CAN-2004-1185 CAN-2004-1186
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1. Summary:
An updated enscript package that fixes several security issues is now
available.
2. Relevant releases/architectures:
Red Hat Enterprise Linux AS (Advanced Server) version 2.1 - i386, ia64
Red Hat Linux Advanced Workstation 2.1 - ia64
Red Hat Enterprise Linux ES version 2.1 - i386
Red Hat Enterprise Linux WS version 2.1 - i386
Red Hat Enterprise Linux AS version 3 - i386, ia64, ppc, s390, s390x, x86_64
Red Hat Desktop version 3 - i386, x86_64
Red Hat Enterprise Linux ES version 3 - i386, ia64, x86_64
Red Hat Enterprise Linux WS version 3 - i386, ia64, x86_64
3. Problem description:
GNU enscript converts ASCII files to PostScript.
Enscript has the ability to interpret special escape sequences. A flaw was
found in the handling of the epsf command used to insert inline EPS files
into a document. An attacker could create a carefully crafted ASCII file
which made use of the epsf pipe command in such a way that it could execute
arbitrary commands if the file was opened with enscript by a victim. The
Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned
the name CAN-2004-1184 to this issue.
Additional flaws in Enscript were also discovered which can only be
triggered by executing enscript with carefully crafted command line
arguments. These flaws therefore only have a security impact if enscript
is executed by other programs and passed untrusted data from remote users.
The Common Vulnerabilities and Exposures project (cve.mitre.org) has
assigned the names CAN-2004-1185 and CAN-2004-1186 to these issues.
All users of enscript should upgrade to these updated packages, which
resolve these issues.
4. Solution:
Before applying this update, make sure that all previously-released
errata relevant to your system have been applied. Use Red Hat
Network to download and update your packages. To launch the Red Hat
Update Agent, use the following command:
up2date
For information on how to install packages manually, refer to the
following Web page for the System Administration or Customization
guide specific to your system:
http://www.redhat.com/docs/manuals/enterprise/
5. Bug IDs fixed (http://bugzilla.redhat.com/):
144683 - CAN-2004-1184 multiple security issues in enscript (CAN-2004-1185 CAN-2004-1186)
6. RPMs required:
Red Hat Enterprise Linux AS (Advanced Server) version 2.1:
SRPMS:
ftp://updates.redhat.com/enterprise/2.1AS/en/os/SRPMS/enscript-1.6.1-16.5.src.rpm
8e405e471e4419319c6ac65c80d02d5c enscript-1.6.1-16.5.src.rpm
i386:
9f3d90e1f1d723669b77f7f814f15923 enscript-1.6.1-16.5.i386.rpm
ia64:
872542b1728ba95a680a703fd49b88ab enscript-1.6.1-16.5.ia64.rpm
Red Hat Linux Advanced Workstation 2.1:
SRPMS:
ftp://updates.redhat.com/enterprise/2.1AW/en/os/SRPMS/enscript-1.6.1-16.5.src.rpm
8e405e471e4419319c6ac65c80d02d5c enscript-1.6.1-16.5.src.rpm
ia64:
872542b1728ba95a680a703fd49b88ab enscript-1.6.1-16.5.ia64.rpm
Red Hat Enterprise Linux ES version 2.1:
SRPMS:
ftp://updates.redhat.com/enterprise/2.1ES/en/os/SRPMS/enscript-1.6.1-16.5.src.rpm
8e405e471e4419319c6ac65c80d02d5c enscript-1.6.1-16.5.src.rpm
i386:
9f3d90e1f1d723669b77f7f814f15923 enscript-1.6.1-16.5.i386.rpm
Red Hat Enterprise Linux WS version 2.1:
SRPMS:
ftp://updates.redhat.com/enterprise/2.1WS/en/os/SRPMS/enscript-1.6.1-16.5.src.rpm
8e405e471e4419319c6ac65c80d02d5c enscript-1.6.1-16.5.src.rpm
i386:
9f3d90e1f1d723669b77f7f814f15923 enscript-1.6.1-16.5.i386.rpm
Red Hat Enterprise Linux AS version 3:
SRPMS:
ftp://updates.redhat.com/enterprise/3AS/en/os/SRPMS/enscript-1.6.1-24.4.src.rpm
25774a6b655e1b1b1647b5b45a70ddee enscript-1.6.1-24.4.src.rpm
i386:
8396407a881a05c9a139a1d324f179f8 enscript-1.6.1-24.4.i386.rpm
ia64:
93bfe25753b73dbcaa8390a82671cf09 enscript-1.6.1-24.4.ia64.rpm
ppc:
3ca7dfe2d1b9525000c5483c697de3e1 enscript-1.6.1-24.4.ppc.rpm
s390:
b54d139ecc5862c27517afa75adcc376 enscript-1.6.1-24.4.s390.rpm
s390x:
069ca11ef416ffd0914bd72fba54cbdb enscript-1.6.1-24.4.s390x.rpm
x86_64:
abc897af6cc5379b87964c7d03d3ad8f enscript-1.6.1-24.4.x86_64.rpm
Red Hat Desktop version 3:
SRPMS:
ftp://updates.redhat.com/enterprise/3desktop/en/os/SRPMS/enscript-1.6.1-24.4.src.rpm
25774a6b655e1b1b1647b5b45a70ddee enscript-1.6.1-24.4.src.rpm
i386:
8396407a881a05c9a139a1d324f179f8 enscript-1.6.1-24.4.i386.rpm
x86_64:
abc897af6cc5379b87964c7d03d3ad8f enscript-1.6.1-24.4.x86_64.rpm
Red Hat Enterprise Linux ES version 3:
SRPMS:
ftp://updates.redhat.com/enterprise/3ES/en/os/SRPMS/enscript-1.6.1-24.4.src.rpm
25774a6b655e1b1b1647b5b45a70ddee enscript-1.6.1-24.4.src.rpm
i386:
8396407a881a05c9a139a1d324f179f8 enscript-1.6.1-24.4.i386.rpm
ia64:
93bfe25753b73dbcaa8390a82671cf09 enscript-1.6.1-24.4.ia64.rpm
x86_64:
abc897af6cc5379b87964c7d03d3ad8f enscript-1.6.1-24.4.x86_64.rpm
Red Hat Enterprise Linux WS version 3:
SRPMS:
ftp://updates.redhat.com/enterprise/3WS/en/os/SRPMS/enscript-1.6.1-24.4.src.rpm
25774a6b655e1b1b1647b5b45a70ddee enscript-1.6.1-24.4.src.rpm
i386:
8396407a881a05c9a139a1d324f179f8 enscript-1.6.1-24.4.i386.rpm
ia64:
93bfe25753b73dbcaa8390a82671cf09 enscript-1.6.1-24.4.ia64.rpm
x86_64:
abc897af6cc5379b87964c7d03d3ad8f enscript-1.6.1-24.4.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://www.redhat.com/security/team/key/#package
7. References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1184
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1185
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1186
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://www.redhat.com/security/team/contact/
Copyright 2005 Red Hat, Inc.
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