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Gentoo Linux Advisories: xpdf, leafnode

Jan 02, 2003, 18:49 (0 Talkback[s])

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GENTOO LINUX SECURITY ANNOUNCEMENT 200301-1
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PACKAGE : xpdf
SUMMARY : integer overflow
DATE    : 2003-01-02 10:01 UTC
EXPLOIT : local and remote

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- From iDEFENSE advisory:

"The pdftops filter in the Xpdf and CUPS packages contains an integer 
overflow that can be exploited to gain the privileges of the target user 
or in some cases the increased privileges of the 'lp' user if installed 
setuid. There are multiple ways of exploiting this vulnerability."

Read the full advisory at
http://www.idefense.com/advisory/12.23.02.txt

SOLUTION

It is recommended that all Gentoo Linux users who are running
app-text/xpdf-1.01-r1 or earlier update their systems as 
follows:

emerge rsync
emerge xpdf
emerge clean

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aliz@gentoo.org - GnuPG key is available at www.gentoo.org/~aliz
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GENTOO LINUX SECURITY ANNOUNCEMENT 200301-2
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PACKAGE : leafnode
SUMMARY : denial of service
DATE    : 2003-01-02 11:01 UTC
EXPLOIT : local and remote

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- From leafnode advisory:

"This vulnerability can make leafnode's nntpd server, named leafnode, go
into an unterminated loop when a particular article is requested. The
connection becomes irresponsive, and the server hogs the CPU. The client
will have to terminate the connection and connect again, and may fall
prey to the same problem; ultimately, there may be so many leafnode
processes hogging the CPU that no serious work is possible any more and
the super user has to kill all running leafnode processes."

Read the full advisory at
http://marc.theaimsgroup.com/?l=bugtraq&m=104127108823436&w=2

SOLUTION

It is recommended that all Gentoo Linux users who are running
new-news/leafnode-1.9.24 or earlier update their systems as 
follows:

emerge rsync
emerge leafnode
emerge clean

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aliz@gentoo.org - GnuPG key is available at www.gentoo.org/~aliz
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