Skip to navigation

Security Advisory New squid packages available to fix FTP-based DoS

Advisory: RHSA-2001:113-03
Type: Security Advisory
Severity: N/A
Issued on: 2001-09-25
Last updated on: 2001-10-16
Affected Products: Red Hat Linux 6.2
Red Hat Linux 7.0
Red Hat Linux 7.1
Red Hat Linux 7.2
CVEs (cve.mitre.org): CVE-2001-0843

Details

New squid packages are available that fix a potential DoS in Squid's FTP
handling code. It is recommened that squid users update to the fixed
packages.

The packages for Red Hat Linux 6.2 also fix the problem described in
RHSA-2001:097-04; it was later discovered that Red Hat Linux 6.2 is
vulnerable to the same problem in accelerator-only mode.

2001-10-22: Packages are now available for Red Hat Linux 7.2.

Certain FTP requests could cause the Squid daemon to abort, making it
unavailable for a period of seconds. If enough of these requests are sent
in a short period of time, the Squid daemon will not be restarted.

Thanks go to Vladimir Ivaschenko for bringing this to our attention, and
to Henrik Nordstrom and the Squid team for providing a fix.


Solution

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

To update all RPMs for your particular architecture, run:

rpm -Fvh [filenames]

where [filenames] is a list of the RPMs you wish to upgrade. Only those
RPMs which are currently installed will be updated. Those RPMs which are
not installed but included in the list will not be updated. Note that you
can also use wildcards (*.rpm) if your current directory *only* contains
the
desired RPMs.

Please note that this update is also available via Red Hat Network. Many
people find this an easier way to apply updates. To use Red Hat Network,
launch the Red Hat Update Agent with the following command:

up2date

This will start an interactive process that will result in the appropriate
RPMs being upgraded on your system.

Updated packages

Red Hat Linux 6.2

SRPMS:
squid-2.3.STABLE4-10.6.2.src.rpm
File outdated by:  RHSA-2002:051
    MD5: 92bf7d39e574dad6e6952b6b89851fe5
 
Alpha:
squid-2.3.STABLE4-10.6.2.alpha.rpm
File outdated by:  RHSA-2002:051
    MD5: e693299406aba9b573354fe29e998a29
 
IA-32:
squid-2.3.STABLE4-10.6.2.i386.rpm
File outdated by:  RHSA-2002:051
    MD5: ca6952e0be177b25d0e90778ab456f6b
 
Sparc:
squid-2.3.STABLE4-10.6.2.sparc.rpm
File outdated by:  RHSA-2002:051
    MD5: 505fbeeaaf873f52a51e8a0a3e5562ae
 
Red Hat Linux 7.0

SRPMS:
squid-2.3.STABLE4-10.7.0.src.rpm
File outdated by:  RHSA-2002:051
    MD5: 2006fdfdc57bc09337be92a04583e00d
 
Alpha:
squid-2.3.STABLE4-10.7.0.alpha.rpm
File outdated by:  RHSA-2002:051
    MD5: 0784ce226770a50c4f13640b6cc7d01e
 
IA-32:
squid-2.3.STABLE4-10.7.0.i386.rpm
File outdated by:  RHSA-2002:051
    MD5: a8d303d2743c0703d3bb2c6502488824
 
Red Hat Linux 7.1

SRPMS:
squid-2.3.STABLE4-10.7.1.src.rpm
File outdated by:  RHSA-2002:051
    MD5: 08a518df230a1f9cf17ecbf2a273a4b8
 
Alpha:
squid-2.3.STABLE4-10.7.1.alpha.rpm
File outdated by:  RHSA-2002:051
    MD5: fe4e72902f8aaf5dec0085c91b0b0e0d
 
IA-32:
squid-2.3.STABLE4-10.7.1.i386.rpm
File outdated by:  RHSA-2002:051
    MD5: c7e2f184cffdd911411aec7908c937d3
 
IA-64:
squid-2.3.STABLE4-10.7.1.ia64.rpm
File outdated by:  RHSA-2002:051
    MD5: 5883320b3d07b2861122e631f59f8b24
 
Red Hat Linux 7.2

SRPMS:
squid-2.4.STABLE1-6.src.rpm
File outdated by:  RHSA-2002:051
    MD5: 1f87ef13481f99b1d4a218f2436b24c1
 
IA-32:
squid-2.4.STABLE1-6.i386.rpm
File outdated by:  RHSA-2002:051
    MD5: b5f0ca849fcef20c0c05b2bea268520e
 

Bugs fixed (see bugzilla for more information)

53906 - Squid allows all proxy requests in accelerator mode


References


Keywords

DoS, FTP, squid


These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from:
https://www.redhat.com/security/team/key/#package

The Red Hat security contact is secalert@redhat.com. More contact details at http://www.redhat.com/security/team/contact/