Due to a Buffer Overread bug Squid is vulnerable to a Denial of
Service attack against Squid HTTP Message processing.
Severity:
This problem allows a remote attacker to perform Denial of
Service when sending easily crafted HTTP Messages.
CVSS Score of 8.6
https://nvd.nist.gov/vuln-metrics/cvss/v3-calculator?vector=AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H&version=3.1
Updated Packages:
This bug is fixed by Squid version 6.5.
In addition, patches addressing this problem for the stable
releases can be found in our patch archives:
Squid 5 and older:
http://www.squid-cache.org/Versions/v5/SQUID-2023_7.patch
Squid 6:
http://www.squid-cache.org/Versions/v6/SQUID-2023_7.patch
If you are using a prepackaged version of Squid then please refer
to the package vendor for availability information on updated
packages.
Determining if your version is vulnerable:
All Squid-2.2 up to and including 4.17 have not been tested
and should be assumed to be vulnerable.
All Squid-5.x up to and including 5.9 are vulnerable.
All Squid-6.x up to and including 6.4 are vulnerable.
Workaround:
There is no workaround for this issue.
Contact details for the Squid project:
For installation / upgrade support on binary packaged versions
of Squid: Your first point of contact should be your binary
package vendor.
If you install and build Squid from the original Squid sources
then the [email protected] mailing list is your
primary support point. For subscription details see
http://www.squid-cache.org/Support/mailing-lists.html.
For reporting of non-security bugs in the latest STABLE release
the squid bugzilla database should be used
https://bugs.squid-cache.org/.
For reporting of security sensitive bugs send an email to the
[email protected] mailing list. It's a closed
list (though anyone can post) and security related bug reports
are treated in confidence until the impact has been established.
Credits:
This vulnerability was discovered by Joshua Rogers of Opera
Software.
Fixed by The Measurement Factory.
Revision history:
2023-10-12 11:53:02 UTC Initial Report
2023-10-25 19:41:45 UTC Patches Released
END
Due to a Buffer Overread bug Squid is vulnerable to a Denial of
Service attack against Squid HTTP Message processing.
Severity:
This problem allows a remote attacker to perform Denial of
Service when sending easily crafted HTTP Messages.
CVSS Score of 8.6
https://nvd.nist.gov/vuln-metrics/cvss/v3-calculator?vector=AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H&version=3.1
Updated Packages:
This bug is fixed by Squid version 6.5.
In addition, patches addressing this problem for the stable
releases can be found in our patch archives:
Squid 5 and older:
http://www.squid-cache.org/Versions/v5/SQUID-2023_7.patch
Squid 6:
http://www.squid-cache.org/Versions/v6/SQUID-2023_7.patch
If you are using a prepackaged version of Squid then please refer
to the package vendor for availability information on updated
packages.
Determining if your version is vulnerable:
All Squid-2.2 up to and including 4.17 have not been tested
and should be assumed to be vulnerable.
All Squid-5.x up to and including 5.9 are vulnerable.
All Squid-6.x up to and including 6.4 are vulnerable.
Workaround:
There is no workaround for this issue.
Contact details for the Squid project:
For installation / upgrade support on binary packaged versions
of Squid: Your first point of contact should be your binary
package vendor.
If you install and build Squid from the original Squid sources
then the [email protected] mailing list is your
primary support point. For subscription details see
http://www.squid-cache.org/Support/mailing-lists.html.
For reporting of non-security bugs in the latest STABLE release
the squid bugzilla database should be used
https://bugs.squid-cache.org/.
For reporting of security sensitive bugs send an email to the
[email protected] mailing list. It's a closed
list (though anyone can post) and security related bug reports
are treated in confidence until the impact has been established.
Credits:
This vulnerability was discovered by Joshua Rogers of Opera
Software.
Fixed by The Measurement Factory.
Revision history:
2023-10-12 11:53:02 UTC Initial Report
2023-10-25 19:41:45 UTC Patches Released
END