| Description: | Squid is a high-performance proxy caching server for web clients, supporting FTP, Gopher, and HTTP data objects.
A flaw was found in the way Squid processed certain external ACL helper HTTP header fields that contained a delimiter that was not a comma. A remote attacker could issue a crafted request to the Squid server, causing excessive CPU use (up to 100%). (CVE-2009-2855)
Note: The CVE-2009-2855 issue only affected non-default configurations that use an external ACL helper script.
A flaw was found in the way Squid handled truncated DNS replies. A remote attacker able to send specially-crafted UDP packets to Squid's DNS client port could trigger an assertion failure in Squid's child process, causing that child process to exit. (CVE-2010-0308)
This update also fixes the following bugs:
Squid's init script returns a non-zero value when trying to stop a stopped service. This is not LSB compliant and can generate difficulties in cluster environments. This update makes stopping LSB compliant. (BZ#521926)
Squid is not currently built to support MAC address filtering in ACLs. This update includes support for MAC address filtering. (BZ#496170)
Squid is not currently built to support Kerberos negotiate authentication. This update enables Kerberos authentication. (BZ#516245)
Squid does not include the port number as part of URIs it constructs when configured as an accelerator. This results in a 403 error. This update corrects this behavior. (BZ#538738)
the error_map feature does not work if the same handling is set also on the HTTP server that operates in deflate mode. This update fixes this issue. (BZ#470843)
All users of squid should upgrade to this updated package, which resolves these issues. After installing this update, the squid service will be restarted automatically.
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