(Mandrake Issues Fix) GNU Enscript EPSF and Filename Command Input Validation Errors May Let Remote Users Execute Arbitrary Code in Certain Cases
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SecurityTracker Alert ID: 1013152 |
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SecurityTracker URL: http://securitytracker.com/id/1013152
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CVE Reference:
CAN-2004-1184, CAN-2004-1185, CAN-2004-1186
(Links to External Site)
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Date: Feb 11 2005
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Impact:
Denial of service via network, Execution of arbitrary code via local system, Execution of arbitrary code via network, User access via network
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Fix Available: Yes Vendor Confirmed: Yes
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Version(s): 1.6.4 and prior versions
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Description:
Several vulnerabilities were reported in GNU Enscript. A local user may be able to execute arbitrary commands or cause denial of service conditions. In some cases, a remote user may also be able to trigger these flaws.
Debian reported that an input validation vulnerability in EPSF pipe support may allow arbitrary commands to be executed [CVE: CAN-2004-1184].
An input validation flaw in the processing of filenames allows arbitrary commands to be executed [CVE: CAN-2004-1185].
Several buffer overflows may cause the application to crash [CVE: CAN-2004-1186].
These flaws reside in 'src/util.c' and 'src/psgen.c'.
Debian notes that enscript is usually run locally, but may be executed remotely via other applications (such as viewcvs).
Erik Sjolund is credited with discovering these flaws.
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Impact:
If the target application is called via a remotely accessible application, a remote user may be able to execute arbitrary code or cause denial of service conditions.
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Solution:
Mandrake has released a fix.
Mandrakelinux 10.0:
f3eb5a56cf8e961908e9014306fd096a 10.0/RPMS/enscript-1.6.4-1.1.100mdk.i586.rpm
1ca9b9369578bc27057366a9c0757671 10.0/SRPMS/enscript-1.6.4-1.1.100mdk.src.rpm
Mandrakelinux 10.0/AMD64:
f316e4e8b11dde6155ddca1517fa8954 amd64/10.0/RPMS/enscript-1.6.4-1.1.100mdk.amd64.rpm
1ca9b9369578bc27057366a9c0757671 amd64/10.0/SRPMS/enscript-1.6.4-1.1.100mdk.src.rpm
Mandrakelinux 10.1:
2454e55d7ac2edad3c5513a60fb6dbe0 10.1/RPMS/enscript-1.6.4-1.1.101mdk.i586.rpm
47a3782c9ed270eb92d418fac3f9b390 10.1/SRPMS/enscript-1.6.4-1.1.101mdk.src.rpm
Mandrakelinux 10.1/X86_64:
9416aa90cf93d61755c815f9c38bac05 x86_64/10.1/RPMS/enscript-1.6.4-1.1.101mdk.x86_64.rpm
47a3782c9ed270eb92d418fac3f9b390 x86_64/10.1/SRPMS/enscript-1.6.4-1.1.101mdk.src.rpm
Corporate Server 2.1:
e14356e6a6bac0eb66a52bad164853b1 corporate/2.1/RPMS/enscript-1.6.3-1.1.C21mdk.i586.rpm
155cc925d6139bbd27272c2e7aab677f corporate/2.1/SRPMS/enscript-1.6.3-1.1.C21mdk.src.rpm
Corporate Server 2.1/X86_64:
633c80cff58745b0a1e907103267aed5 x86_64/corporate/2.1/RPMS/enscript-1.6.3-1.1.C21mdk.x86_64.rpm
155cc925d6139bbd27272c2e7aab677f x86_64/corporate/2.1/SRPMS/enscript-1.6.3-1.1.C21mdk.src.rpm
Corporate 3.0:
083cf4b5704f105f0aad21b82d3a2414 corporate/3.0/RPMS/enscript-1.6.4-1.1.C30mdk.i586.rpm
4ec9da427f7db5e0d2e4cac21e07e2c3 corporate/3.0/SRPMS/enscript-1.6.4-1.1.C30mdk.src.rpm
Corporate 3.0/X86_64:
2c6023e776b04c8ca7745e70ca8fe464 x86_64/corporate/3.0/RPMS/enscript-1.6.4-1.1.C30mdk.x86_64.rpm
4ec9da427f7db5e0d2e4cac21e07e2c3 x86_64/corporate/3.0/SRPMS/enscript-1.6.4-1.1.C30mdk.src.rpm
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Vendor URL: people.ssh.fi/mtr/genscript/ (Links to External Site)
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Cause:
Boundary error, Input validation error
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Underlying OS:
Linux (Mandriva/Mandrake)
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Message History:
This archive entry is a follow-up to the message listed below.
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Source Message Contents
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Date: Thu, 10 Feb 2005 16:51:09 -0700
Subject: [Security Announce] MDKSA-2005:033 - Updated enscript packages
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This is a multi-part message in MIME format...
------------=_1108088300-31468-2196
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
_______________________________________________________________________
Mandrakelinux Security Update Advisory
_______________________________________________________________________
Package name: enscript
Advisory ID: MDKSA-2005:033
Date: February 10th, 2005
Affected versions: 10.0, 10.1, Corporate 3.0,
Corporate Server 2.1
______________________________________________________________________
Problem Description:
A vulnerability in the enscript program's handling of the epsf command
used to insert inline EPS file into a document was found. An attacker
could create a carefully crafted ASCII file which would make used of
the epsf pipe command in such a way that it could execute arbitrary
commands if the file was opened with enscript (CAN-2004-1184).
Additionally, flaws were found in enscript that could be abused by
executing enscript with carefully crafted command-line arguments.
These flaws only have a security impact if enscript is executed by
other programs and passed untrusted data from remote users
(CAN-2004-1185 and CAN-2004-1186).
The updated packages have been patched to prevent these problems.
_______________________________________________________________________
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
______________________________________________________________________
Updated Packages:
Mandrakelinux 10.0:
f3eb5a56cf8e961908e9014306fd096a 10.0/RPMS/enscript-1.6.4-1.1.100mdk.i586.rpm
1ca9b9369578bc27057366a9c0757671 10.0/SRPMS/enscript-1.6.4-1.1.100mdk.src.rpm
Mandrakelinux 10.0/AMD64:
f316e4e8b11dde6155ddca1517fa8954 amd64/10.0/RPMS/enscript-1.6.4-1.1.100mdk.amd64.rpm
1ca9b9369578bc27057366a9c0757671 amd64/10.0/SRPMS/enscript-1.6.4-1.1.100mdk.src.rpm
Mandrakelinux 10.1:
2454e55d7ac2edad3c5513a60fb6dbe0 10.1/RPMS/enscript-1.6.4-1.1.101mdk.i586.rpm
47a3782c9ed270eb92d418fac3f9b390 10.1/SRPMS/enscript-1.6.4-1.1.101mdk.src.rpm
Mandrakelinux 10.1/X86_64:
9416aa90cf93d61755c815f9c38bac05 x86_64/10.1/RPMS/enscript-1.6.4-1.1.101mdk.x86_64.rpm
47a3782c9ed270eb92d418fac3f9b390 x86_64/10.1/SRPMS/enscript-1.6.4-1.1.101mdk.src.rpm
Corporate Server 2.1:
e14356e6a6bac0eb66a52bad164853b1 corporate/2.1/RPMS/enscript-1.6.3-1.1.C21mdk.i586.rpm
155cc925d6139bbd27272c2e7aab677f corporate/2.1/SRPMS/enscript-1.6.3-1.1.C21mdk.src.rpm
Corporate Server 2.1/X86_64:
633c80cff58745b0a1e907103267aed5 x86_64/corporate/2.1/RPMS/enscript-1.6.3-1.1.C21mdk.x86_64.rpm
155cc925d6139bbd27272c2e7aab677f x86_64/corporate/2.1/SRPMS/enscript-1.6.3-1.1.C21mdk.src.rpm
Corporate 3.0:
083cf4b5704f105f0aad21b82d3a2414 corporate/3.0/RPMS/enscript-1.6.4-1.1.C30mdk.i586.rpm
4ec9da427f7db5e0d2e4cac21e07e2c3 corporate/3.0/SRPMS/enscript-1.6.4-1.1.C30mdk.src.rpm
Corporate 3.0/X86_64:
2c6023e776b04c8ca7745e70ca8fe464 x86_64/corporate/3.0/RPMS/enscript-1.6.4-1.1.C30mdk.x86_64.rpm
4ec9da427f7db5e0d2e4cac21e07e2c3 x86_64/corporate/3.0/SRPMS/enscript-1.6.4-1.1.C30mdk.src.rpm
_______________________________________________________________________
To upgrade automatically use MandrakeUpdate or urpmi. The verification
of md5 checksums and GPG signatures is performed automatically for you.
All packages are signed by Mandrakesoft for security. You can obtain
the GPG public key of the Mandrakelinux Security Team by executing:
gpg --recv-keys --keyserver pgp.mit.edu 0x22458A98
You can view other update advisories for Mandrakelinux at:
http://www.mandrakesoft.com/security/advisories
If you want to report vulnerabilities, please contact
security_linux-mandrake.com
Type Bits/KeyID Date User ID
pub 1024D/22458A98 2000-07-10 Linux Mandrake Security Team
<security linux-mandrake.com>
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