(Mandrake Issues Fix) Squid NTLM Input Validation Error in ntlm_fetch_string() Lets Remote Users Crash the System
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SecurityTracker Alert ID: 1011288
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SecurityTracker URL: http://securitytracker.com/id?1011288
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CVE Reference: CAN-2004-0832
(Links to External Site)
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OSVDB Reference: 9551
(Links to External Site)
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Date: Sep 15 2004
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Impact: Denial of service via network
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Fix Available: Yes
Vendor Confirmed: Yes
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Version(s): 2.5
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Description: A vulnerability was reported in Squid in the processing of NTLM authentication strings. A remote user can cause denial of service conditions.
Marco Ortisi reported that Squid does not properly validate certain parameters to prevent negative values. If NTLM authentication
is enabled, a remote user can send certain malformed NTLMSSP packets to cause the target service to crash.
The flaw resides in
ntlmGetString() in 'squid/squid/helpers/ntlm_auth/fakeauth/fakeauth_auth.c' and in ntlm_fetch_string() in 'squid/squid/lib/ntlmauth.c'.
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Impact: A remote user can cause the target service to crash.
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Solution: Mandrake has released a fix.
Mandrakelinux 10.0:
a97e24902f95afb896e1387124be81cd 10.0/RPMS/squid-2.5.STABLE4-2.1.100mdk.i586.rpm
92bc96caf7e5ccaed6250833b8c4dcdc 10.0/SRPMS/squid-2.5.STABLE4-2.1.100mdk.src.rpm
Mandrakelinux 10.0/AMD64:
48a9ee3a6e7b427240fc35a04b569b06
amd64/10.0/RPMS/squid-2.5.STABLE4-2.1.100mdk.amd64.rpm
92bc96caf7e5ccaed6250833b8c4dcdc amd64/10.0/SRPMS/squid-2.5.STABLE4-2.1.100mdk.src.rpm
Mandrakelinux 9.2:
ad5b562c41b764f1807bcfa4203b7f22 9.2/RPMS/squid-2.5.STABLE3-3.3.92mdk.i586.rpm
72d8e8215f7da363d28883f4a4a6d13b
9.2/SRPMS/squid-2.5.STABLE3-3.3.92mdk.src.rpm
Mandrakelinux 9.2/AMD64:
ef8de99bad97ad623f584fcf4eaa3962 amd64/9.2/RPMS/squid-2.5.STABLE3-3.3.92mdk.amd64.rpm
72d8e8215f7da363d28883f4a4a6d13b amd64/9.2/SRPMS/squid-2.5.STABLE3-3.3.92mdk.src.rpm
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Vendor URL: www.squid-cache.org/bugs/show_bug.cgi?id=1045 (Links to External Site)
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Cause: Boundary error, Input validation error
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Underlying OS: Linux (Mandrake)
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Underlying OS Comments: 9.2, 10.0
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Reported By: Mandrake Linux Security Team <security@linux-mandrake.com>
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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: 15 Sep 2004 16:10:35 -0000
From: Mandrake Linux Security Team <security@linux-mandrake.com>
Subject: [Security Announce] MDKSA-2004:093 - Updated squid packages fix
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This is a multi-part message in MIME format...
------------=_1095265604-12666-4600
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
_______________________________________________________________________
Mandrakelinux Security Update Advisory
_______________________________________________________________________
Package name: squid
Advisory ID: MDKSA-2004:093
Date: September 15th, 2004
Affected versions: 10.0, 9.2
______________________________________________________________________
Problem Description:
A vulnerability in the NTLM helpers in squid 2.5 could allow for
malformed NTLMSSP packets to crash squid, resulting in a DoS. The
provided packages have been patched to prevent this problem.
_______________________________________________________________________
References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0832
http://www.squid-cache.org/bugs/show_bug.cgi?id=1045
______________________________________________________________________
Updated Packages:
Mandrakelinux 10.0:
a97e24902f95afb896e1387124be81cd 10.0/RPMS/squid-2.5.STABLE4-2.1.100mdk.i586.rpm
92bc96caf7e5ccaed6250833b8c4dcdc 10.0/SRPMS/squid-2.5.STABLE4-2.1.100mdk.src.rpm
Mandrakelinux 10.0/AMD64:
48a9ee3a6e7b427240fc35a04b569b06 amd64/10.0/RPMS/squid-2.5.STABLE4-2.1.100mdk.amd64.rpm
92bc96caf7e5ccaed6250833b8c4dcdc amd64/10.0/SRPMS/squid-2.5.STABLE4-2.1.100mdk.src.rpm
Mandrakelinux 9.2:
ad5b562c41b764f1807bcfa4203b7f22 9.2/RPMS/squid-2.5.STABLE3-3.3.92mdk.i586.rpm
72d8e8215f7da363d28883f4a4a6d13b 9.2/SRPMS/squid-2.5.STABLE3-3.3.92mdk.src.rpm
Mandrakelinux 9.2/AMD64:
ef8de99bad97ad623f584fcf4eaa3962 amd64/9.2/RPMS/squid-2.5.STABLE3-3.3.92mdk.amd64.rpm
72d8e8215f7da363d28883f4a4a6d13b amd64/9.2/SRPMS/squid-2.5.STABLE3-3.3.92mdk.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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____________________________________________________
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____________________________________________________
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