Users login

Create an account »

JOIN XATRIX

Users login

Home » Security Advisories» OpenPKG » Squid denial of service

Squid denial of service

Two Denial of Service (DoS) security issues were discovered in the Squid Internet proxy. The first DoS is possible via certain aborted requests that trigger an assertion error related to "STORE_PENDING". The second problem allows remote attackers to cause a DoS via certain crafted requests and SSL timeouts.

  • Vendor: OpenPKG
  • Vendor ID: SA-2005.021
  • Date: September 10, 2005


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

________________________________________________________________________

OpenPKG Security Advisory The OpenPKG Project
http://www.openpkg.org/security.html http://www.openpkg.org
[email protected] [email protected]
OpenPKG-SA-2005.021 10-Sep-2005
________________________________________________________________________

Package: squid
Vulnerability: denial of service
OpenPKG Specific: no

Affected Releases: Affected Packages: Corrected Packages:
OpenPKG CURRENT <= squid-2.5.10-20050709 >= squid-2.5.10-20050910
OpenPKG 2.4 <= squid-2.5.10-2.4.0 >= squid-2.5.10-2.4.1
OpenPKG 2.3 <= squid-2.5.9-2.3.0 >= squid-2.5.9-2.3.1

Dependent Packages: none

Description:
Two Denial of Service (DoS) security issues were discovered in the
Squid [0] Internet proxy. The first DoS is possible via certain
aborted requests that trigger an assertion error related to
"STORE_PENDING". The Common Vulnerabilities and Exposures (CVE)
project assigned the id CAN-2005-2794 [1] to the problem. The second
problem allows remote attackers to cause a DoS via certain crafted
requests and SSL timeouts. The Common Vulnerabilities and Exposures
(CVE) project assigned the id CAN-2005-2796 [2] to the problem.

Please check whether you are affected by running "/bin/openpkg
rpm -q squid". If you have the "squid" package installed and its
version is affected (see above), we recommend that you immediately
upgrade it (see Solution) [3][4].

Solution:
Select the updated source RPM appropriate for your OpenPKG release
[5][6], fetch it from the OpenPKG FTP service [7][8] or a mirror
location, verify its integrity [9], build a corresponding binary RPM
from it [3] and update your OpenPKG installation by applying the
binary RPM [4]. For the most recent release OpenPKG 2.4, perform the
following operations to permanently fix the security problem (for
other releases adjust accordingly).

$ ftp ftp.openpkg.org
ftp> bin
ftp> cd release/2.4/UPD
ftp> get squid-2.5.10-2.4.1.src.rpm
ftp> bye
$ /bin/openpkg rpm -v --checksig squid-2.5.10-2.4.1.src.rpm
$ /bin/openpkg rpm --rebuild squid-2.5.10-2.4.1.src.rpm
$ su -
# /bin/openpkg rpm -Fvh /RPM/PKG/squid-2.5.10-2.4.1.*.rpm
________________________________________________________________________

References:
[0] http://www.squid-cache.org/
[1] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-2794
[2] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-2796
[3] http://www.openpkg.org/tutorial.html#regular-source
[4] http://www.openpkg.org/tutorial.html#regular-binary
[5] ftp://ftp.openpkg.org/release/2.4/UPD/squid-2.5.10-2.4.1.src.rpm
[6] ftp://ftp.openpkg.org/release/2.3/UPD/squid-2.5.9-2.3.1.src.rpm
[7] ftp://ftp.openpkg.org/release/2.4/UPD/
[8] ftp://ftp.openpkg.org/release/2.3/UPD/
[9] http://www.openpkg.org/security.html#signature
________________________________________________________________________

For security reasons, this advisory was digitally signed with the
OpenPGP public key "OpenPKG " (ID 63C4CB9F) of the
OpenPKG project which you can retrieve from http://pgp.openpkg.org and
hkp://pgp.openpkg.org. Follow the instructions on http://pgp.openpkg.org/
for details on how to verify the integrity of this advisory.
________________________________________________________________________

-----BEGIN PGP SIGNATURE-----
Comment: OpenPKG

iD8DBQFDIvf/gHWT4GPEy58RAnCnAKDrvmGNftc9jHI+PDzE9wDUHNja4QCffSdO
Qa9zYyI7QLe9aZLBxbNyG5c=
=2dyO
-----END PGP SIGNATURE-----

Newsletter signup

Signup to our monthly newsletter and stay in touch with IT news!

Free E-books

We've got ebooks! But they're not online. :( Please give us a few days to bring downloads back.

Contact

Have something to say or just wanna drop us a line? Please keep this in mind: to spam, we reply with spam.

Contact us »