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The remote Scientific Linux host is missing a security update.
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
- 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
- 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)
After installing this update, the squid service will be restarted
See also :
Update the affected squid package.
Risk factor :
Medium / CVSS Base Score : 5.0
Family: Scientific Linux Local Security Checks
Nessus Plugin ID: 60775 ()
CVE ID: CVE-2009-2855CVE-2010-0308
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