--------------------------------------------------------------------- Fedora Legacy Test Update Notification FEDORALEGACY-2005-2150 Bugzilla https://bugzilla.fedora.us/show_bug.cgi?id=2150 2005-03-25 ---------------------------------------------------------------------
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.
--------------------------------------------------------------------- Update Information:
An updated Squid package that fixes several security issues is now available.
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.
--------------------------------------------------------------------- Changelogs
* Tue Feb 01 2005 Jay Fenlason <fenlason 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 redhat com> - Change the squid user's login shell to /sbin/nologin
* Mon Jan 31 2005 Jay Fenlason <fenlason 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 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.
* Tue Oct 12 2004 Jay Fenlason <fenlason 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 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
--------------------------------------------------------------------- This update can be downloaded from: http://download.fedoralegacy.org/ (sha1sums)
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