Fedora Legacy Test Update Notification: squid

Marc Deslauriers marcdeslauriers at videotron.ca
Fri Mar 25 23:54:53 UTC 2005 

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Fedora Legacy Test Update Notification
FEDORALEGACY-2005-2150
Bugzilla https://bugzilla.fedora.us/show_bug.cgi?id=2150
2005-03-25
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Name        : squid
Versions    : rh7.3: squid-2.4.STABLE7-0.73.2.legacy
Versions    : rh9: squid-2.5.STABLE1-9.9.legacy
Versions    : fc1: squid-2.5.STABLE3-2.fc1.5.legacy
Summary     : The Squid proxy caching server.
Description :
Squid is a high-performance proxy caching server for Web clients,
supporting FTP, gopher, and HTTP data objects. Unlike traditional
caching software, Squid handles all requests in a single,
non-blocking, I/O-driven process. Squid keeps meta data and especially
hot objects cached in RAM, caches DNS lookups, supports non-blocking
DNS lookups, and implements negative caching of failed requests.

Squid consists of a main server program squid, a Domain Name System
lookup program (dnsserver), a program for retrieving FTP data
(ftpget), and some management and client tools.

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Update Information:

An updated Squid package that fixes several security issues is now
available.

Squid is a full-featured Web proxy cache.

A buffer overflow was found within the NTLM authentication helper
routine. If Squid is configured to use the NTLM authentication helper,
a remote attacker could potentially execute arbitrary code by sending a
lengthy password. The Common Vulnerabilities and Exposures project
(cve.mitre.org) has assigned the name CAN-2004-0541 to this issue.

An out of bounds memory read bug was found within the NTLM
authentication helper routine. If Squid is configured to use the NTLM
authentication helper, a remote attacker could send a carefully crafted
NTLM authentication packet and cause Squid to crash. The Common
Vulnerabilities and Exposures project (cve.mitre.org) has assigned the
name CAN-2004-0832 to this issue.

iDEFENSE reported a flaw in the squid SNMP module. This flaw could allow
an attacker who has the ability to send arbitrary packets to the SNMP
port to restart the server, causing it to drop all open connections. The
Common Vulnerabilities and Exposures project (cve.mitre.org) has
assigned the name CAN-2004-0918 to this issue.

A buffer overflow flaw was found in the Gopher relay parser. This bug
could allow a remote Gopher server to crash the Squid proxy that reads
data from it. Although Gopher servers are now quite rare, a malicious
web page (for example) could redirect or contain a frame pointing to an
attacker's malicious gopher server. The Common Vulnerabilities and
Exposures project (cve.mitre.org) has assigned the name CAN-2005-0094 to
this issue.

An integer overflow flaw was found in the WCCP message parser. It is
possible to crash the Squid server if an attacker is able to send a
malformed WCCP message with a spoofed source address matching Squid's
"home router". The Common Vulnerabilities and Exposures project
(cve.mitre.org) has assigned the name CAN-2005-0095 to this issue.

A memory leak was found in the NTLM fakeauth_auth helper. It is possible
that an attacker could place the Squid server under high load, causing
the NTML fakeauth_auth helper to consume a large amount of memory,
resulting in a denial of service. The Common Vulnerabilities and
Exposures project (cve.mitre.org) has assigned the name CAN-2005-0096 to
this issue.

A NULL pointer de-reference bug was found in the NTLM fakeauth_auth
helper. It is possible for an attacker to send a malformed NTLM type 3
message, causing the Squid server to crash. The Common Vulnerabilities
and Exposures project (cve.mitre.org) has assigned the name
CAN-2005-0097 to this issue.

A username validation bug was found in squid_ldap_auth. It is possible
for a username to be padded with spaces, which could allow a user to
bypass explicit access control rules or confuse accounting. The Common
Vulnerabilities and Exposures project (cve.mitre.org) has assigned the
name CAN-2005-0173 to this issue.

The way Squid handles HTTP responses was found to need strengthening. It
is possible that a malicious web server could send a series of HTTP
responses in such a way that the Squid cache could be poisoned,
presenting users with incorrect webpages. The Common Vulnerabilities and
Exposures project (cve.mitre.org) has assigned the names CAN-2005-0174
and CAN-2005-0175 to these issues.

When processing the configuration file, Squid parses empty Access
Control Lists (ACLs) and proxy_auth ACLs without defined auth schemes in
a way that effectively removes arguments, which could allow remote
attackers to bypass intended ACLs. The Common Vulnerabilities and
Exposures project (cve.mitre.org) has assigned the name CAN-2005-0194 to
this issue.

A buffer overflow bug was found in the WCCP message parser. It is
possible that an attacker could send a malformed WCCP message which
could crash the Squid server or execute arbitrary code. The Common
Vulnerabilities and Exposures project (cve.mitre.org) has assigned the
name CAN-2005-0211 to this issue.

A bug was found in the way Squid handled oversized HTTP response
headers. It is possible that a malicious web server could send a
specially crafted HTTP header which could cause the Squid cache to be
poisoned, presenting users with incorrect webpages. The Common
Vulnerabilities and Exposures project (cve.mitre.org) has assigned the
name CAN-2005-0241 to this issue.

A bug was found in the way Squid handles FQDN lookups. It was possible
to crash the Squid server by sending a carefully crafted DNS response to
an FQDN lookup. The Common Vulnerabilities and Exposures project
(cve.mitre.org) has assigned the name CAN-2005-0446 to this issue.

A race condition was discovered in the handling of "Set-Cookie" headers.
If the obsolete Netscape recommendation was used for handling cookies in
the cache, it was possible for an attacker to steal the cookies of other
users. The Common Vulnerabilities and Exposures project (cve.mitre.org)
has assigned the name CAN-2005-0626 to this issue.

Users of Squid should upgrade to this updated package, which contains
backported patches, and is not vulnerable to these issues.

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Changelogs

rh73:
* Sat Mar 19 2005 Marc Deslauriers <marcdeslauriers at videotron.ca> 
7:2.4.STABLE7-0.73.2.legacy
- Added security patch for CAN-2005-0446 taken from RHEL3
- Added backported security patch for CAN-2005-0626

* Wed Feb 16 2005 Marc Deslauriers <marcdeslauriers at videotron.ca> 
7:2.4.STABLE7-0.73.1.legacy
- Rebuilt as Fedora Legacy security update for Red Hat Linux 7.3

* Tue Feb 01 2005 Jay Fenlason <fenlason at redhat.com>
- Two more security fixes:
   * CAN-2005-0211 bz#146777 buffer overflow in wccp recvfrom() call
   * bz#146780 correct handling of oversize reply headers

* Mon Jan 31 2005 Jay Fenlason <fenlason at redhat.com>
- Change the squid user's login shell to /sbin/nologin

* Mon Jan 31 2005 Jay Fenlason <fenlason at redhat.com> 7:2.4.STABLE7-1.21as.3
- Don't include the 0-length files created by patch in the errors directory.

* Fri Jan 28 2005 Jay Fenlason <fenlason at redhat.com> 7:2.4.STABLE7-1.21as.2
- Backport three more security fixes to close bz#146159
- Also backport the -reply_header_max_size patch
- Reorganize this spec file to apply upstream patches first.

* Thu Jan 20 2005 Jay Fenlason <fenlason at redhat.com> 7:2.4.STABLE7-1.21as.1
- Backport fixes for CAN-2005-0094 (remote DOS in parsing malformed Gopher
   messages). and CAN-2005-0095 (remote DOS in parsing malformed wccp 
messages).
- This version of squid is not vulnerable to CAN-2005-0096 and CAN-2005-0097
   because it does not contain the ntlm_auth helper.

* Tue Oct 12 2004 Jay Fenlason <fenlason at redhat.com> 7:2.4.STABLE7-1.21as
- Backport SNMP_core_dump patch from 2.5.STABLE6 to fix CAN-2004-0918
   (Remote DoS)

* Mon Jun 21 2004 Jay Fenlason <fenlason at redhat.com> 7:2.4.STABLE7-0.21as
- bump to 2.4.STABLE7 to pick up all the post STABLE6 patches
- Include the three upstream patches to 2.4.STABLE7
- Add the forward_retries one-line patch for bugzilla #120849

rh9:
* Fri Mar 18 2005 Marc Deslauriers <marcdeslauriers at videotron.ca> 
7:2.5.STABLE1-9.9.legacy
- Added security patch for CAN-2005-0446 taken from RHEL3
- Added backported security patch for CAN-2005-0626

* Sat Feb 19 2005 Marc Deslauriers <marcdeslauriers at videotron.ca> 
7:2.5.STABLE1-8.9.legacy
- Added openssl-devel and cyrus-sasl-devel BuildPrereq

* Wed Feb 16 2005 Marc Deslauriers <marcdeslauriers at videotron.ca> 
7:2.5.STABLE1-7.9.legacy
- Security patches for CAN-2005-0094, CAN-2005-0095, CAN-2005-0096,
   CAN-2005-0097, CAN-2005-0173, CAN-2005-0174, CAN-2005-0175,
   CAN-2005-0194, CAN-2005-0211, CAN-2005-0241

* Sat Oct 16 2004 Marc Deslauriers <marcdeslauriers at videotron.ca> 
7:2.5.STABLE1-6.9.legacy
- CAN-2004-0918 security patch (snmp DoS)

* Fri Sep 10 2004 Marc Deslauriers <marcdeslauriers at videotron.ca> 
7:2.5.STABLE1-5.9.legacy
- CAN-2004-0832 security patch (malformed NTLMSSP packets crash NTLM 
helpers)

* Tue Jun 08 2004 Marc Deslauriers <marcdeslauriers at videotron.ca> 
7:2.5.STABLE1-4.9.legacy
- CAN-2004-0541 security patch (NTLM Authentication Helper Buffer Overflow)

fc1:
* Sat Mar 19 2005 Marc Deslauriers <marcdeslauriers at videotron.ca> 
7:2.5.STABLE3-2.fc1.5.legacy
- Added security patch for CAN-2005-0446 taken from RHEL3
- Added backported security patch for CAN-2005-0626

* Sun Feb 20 2005 Marc Deslauriers <marcdeslauriers at videotron.ca> 
7:2.5.STABLE3-2.fc1.4.legacy
- Added missing openssl-devel and cyrus-sasl-devel BuildPrereq

* Wed Feb 16 2005 Marc Deslauriers <marcdeslauriers at videotron.ca> 
7:2.5.STABLE3-2.fc1.3.legacy
- Security patches for CAN-2005-0094, CAN-2005-0095, CAN-2005-0096,
   CAN-2005-0097, CAN-2005-0173, CAN-2005-0174, CAN-2005-0175,
   CAN-2005-0194, CAN-2005-0211, CAN-2005-0241

* Tue Oct 12 2004 Rob Myers <rob.myers at gtri.gatech.edu> 
7:2.5.STABLE3-2.fc1.2.legacy
- apply patch for CAN-2004-0918 bug #2150
- group last patch under fedora legacy security updates

* Tue Oct 05 2004 Rob Myers <rob.myers at gtri.gatech.edu> 
7:2.5.STABLE3-2.fc1.1.legacy
- apply patch from 2.5.STABLE3-1.fc1 RHEL3 for CAN-2004-0832

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This update can be downloaded from:
   http://download.fedoralegacy.org/
(sha1sums)

rh7.3:
bc2ae2612ca458e900d7088c3f7b5dc354fd43b7 
redhat/7.3/updates-testing/i386/squid-2.4.STABLE7-0.73.2.legacy.i386.rpm
adc8920bddb66fd0726dba6840fa1052d7cf2e1b 
redhat/7.3/updates-testing/SRPMS/squid-2.4.STABLE7-0.73.2.legacy.src.rpm

rh9:
6babebc4cc24afe9341d04bfc876b82629b8465e 
redhat/9/updates-testing/i386/squid-2.5.STABLE1-9.9.legacy.i386.rpm
a83008420aa911d27948c25d91b0f692dfb12754 
redhat/9/updates-testing/SRPMS/squid-2.5.STABLE1-9.9.legacy.src.rpm

fc1:
339131d68c1658cf1d0c5faff9afcb5b9723bfca 
fedora/1/updates-testing/i386/squid-2.5.STABLE3-2.fc1.5.legacy.i386.rpm
1c7fdc3a29fc96097fb9ef640a1c426aa600f9d5 
fedora/1/updates-testing/SRPMS/squid-2.5.STABLE3-2.fc1.5.legacy.src.rpm

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Please test and comment in bugzilla.
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