Security Advisory Updated CUPS packages fix denial of service attack

Advisory: RHSA-2003:171-14
Type: Security Advisory
Severity: N/A
Issued on: 2003-05-27
Last updated on: 2003-05-27
Affected Products: Red Hat Linux 7.3
Red Hat Linux 8.0
Red Hat Linux 9
CVEs ( CVE-2003-0195


Updated CUPS packages that fix a denial of service vulnerability are now

CUPS is a print spooler. CUPS is used as the default print spooler on new
installations of Red Hat Linux 9, and has been provided (though not as the
default) for Red Hat Linux 7.3 and Red Hat Linux 8.0.

Phil D'Amore of Red Hat discovered a vulnerability in the CUPS IPP
(Internet Printing Protocol) implementation. The IPP implementation is
single-threaded, which means only one request can be serviced at a time.
An attacker could make a partial request that does not time out and
therefore creates a denial of service. In order to exploit this bug, an
attacker must have the ability to make a TCP connection to the IPP port (by
default 631).

All print servers using CUPS should upgrade to these erratum packages,
which contain a patch and are not vulnerable to this issue.


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:


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

Updated packages

Red Hat Linux 7.3

Missing file
    MD5: ccad6f342acd7cb20f4564c4ec7662b7
Missing file
    MD5: f607a87ef72ed8e54c49241c865ee578
Missing file
    MD5: 6bb84bd1c0cfb95792aea1a87c5ca545
Missing file
    MD5: 67006ca3cf4d703c41ed7ac9fbe7e70f
Red Hat Linux 8.0

File outdated by:  RHSA-2003:275
    MD5: 73d565a0540219e931029c1fe14b831b
File outdated by:  RHSA-2003:275
    MD5: f8cf990aa6f0b652a451be6be783bbe8
File outdated by:  RHSA-2003:275
    MD5: 2249276c7a52692965918d2dbb9ee118
Red Hat Linux 9

File outdated by:  RHSA-2003:275
    MD5: fd361f163c6dce35d50f94563b6f5774
File outdated by:  RHSA-2003:275
    MD5: cbc15e9989207900f85476cfe920e477
File outdated by:  RHSA-2003:275
    MD5: bdc49692f7f86bc4a19b7f3611b0e4b9
File outdated by:  RHSA-2003:275
    MD5: 79f0146526b6e6495accec0bf2927ad1


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