Yellow Dog Linux Security Announcement -------------------------------------- Package: cups Issue Date: Jun 02,2003 Priority: medium Advisory ID: YDU-20030602-3 1. Topic: Updated cups packages are available. 2. Problem: "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." (From Red Hat Advisory) 3. Solution: a) Updating via apt... We suggest that you use the apt-get program to keep your system up-to-date. The following command(s) will retrieve and install the fixed version of this update onto your system: apt-get update apt-get install cups b) Updating manually... Download the updates below and then run the following rpm command. (Please use a mirror site) rpm -Fvh [filenames] Yellow Dog Linux 3.0 ftp://ftp.yellowdoglinux.com/pub/yellowdog/updates/yellowdog-3.0/ ppc/cups-1.1.17-13.3.ppc.rpm ppc/cups-devel-1.1.17-13.3.ppc.rpm ppc/cups-libs-1.1.17-13.3.ppc.rpm Yellow Dog Linux 2.3 ftp://ftp.yellowdoglinux.com/pub/yellowdog/updates/yellowdog-2.3/ ppc/cups-libs-1.1.14-15.4a.ppc.rpm ppc/cups-devel-1.1.14-15.4a.ppc.rpm ppc/cups-1.1.14-15.4a.ppc.rpm 4. Verification MD5 checksum Package -------------------------------- ---------------------------- [Yellow Dog Linux 3.0] fa9716894a5292c3effeef6745ac0e7a SRPMS/cups-1.1.17-13.3.src.rpm 7995a34dae24ac2ddd77822ada6d70f4 ppc/cups-1.1.17-13.3.ppc.rpm c7bbbb1c7557557f7f2399f580a1795b ppc/cups-devel-1.1.17-13.3.ppc.rpm 37c54d8fe1890d10074496066ce38cd0 ppc/cups-libs-1.1.17-13.3.ppc.rpm [Yellow Dog Linux 2.3] fe0b6b31f7b384a511e1edcdc9140344 SRPMS/cups-1.1.14-15.4a.src.rpm 53742c10a32a77c15701d475e8e7835d ppc/cups-libs-1.1.14-15.4a.ppc.rpm e6a8abe34ed983bbdb7dc311fbe01493 ppc/cups-devel-1.1.14-15.4a.ppc.rpm b76841f48824845add70dac449f29edc ppc/cups-1.1.14-15.4a.ppc.rpm If you wish to verify that each package has not been corrupted or tampered with, examine the md5sum with the following command: md5sum 5. Misc. Terra Soft has setup a moderated mailing list where these security, bugfix, and package enhancement announcements will be posted. See http://lists.terrasoftsolutions.com/ for more information. For information regarding the usage of apt-get, see: http://www.yellowdoglinux.com/support/solutions/ydl_general/apt-get.shtml