Debian: tcpdump denial of service vulnerability DSA-255-1
Summary
Andrew Griffiths and iDEFENSE Labs discovered a problem in tcpdump, a
powerful tool for network monitoring and data acquisition. An
attacker is able to send a specially crafted network packet which
causes tcpdump to enter an infinite loop.
In addition to the above problem the tcpdump developers discovered a
potential infinite loop when parsing malformed BGP packets. They also
discovered a buffer overflow that can be exploited with certain
malformed NFS packets.
For the stable distribution (woody) these problems have been
fixed in version 3.6.2-2.3.
For the old stable distribution (potato) does not seem to be affected
by this problem.
For the unstable distribution (sid) these problems have been fixed in
version 3.7.1-1.2.
We recommend that you upgrade your tcpdump packages.
Upgrade Instructions
--------------------
wget url
will fetch the file for you
dpkg -i file.deb
will install the referenced file.
If you are using the apt-get package manager, use the line for
sources.list as given below:
apt-get update
will update the internal database
apt-get upgrade
will install corrected packages
You may use an automated update by adding the resources from the
footer to the proper configuration.
Debian GNU/Linux 3.0 alias woody
--------------------------------
Source archives:
Size/MD5 checksum: 587 7316fea776a03291973de9db5dda34a1
Size/MD5 checksum: 10413 467813aab9a57869160e3082c7a11679
Size/MD5 checksum: 380635 6bc8da35f9eed4e675bfdf04ce312248
Alpha architecture:
Size/MD5 checksum: 213570 17577dd6cbe33e486dd8b193a3f188b0
ARM architecture:
Size/MD5 checksum: 179598 005967e88f0895d8f962f07f3db525f7
Intel IA-32 architecture:
Size/MD5 checksum: 169482 2e6aadf125c8e7bbde3d0dd162201480
Intel IA-64 architecture:
Size/MD5 checksum: 246744 c42598c647c1380689a7e196a7f685bb
HP Precision architecture:
Size/MD5 checksum: 192974 6d2133766c5e3d2dd5d8121a55d57bed
Motorola 680x0 architecture:
Size/MD5 checksum: 157444 b20c63dca863d7e752eac1ac8089b469
Big endian MIPS architecture:
Size/MD5 checksum: 188792 07f375adc0a86d704ce12e6f50036fa8
Little endian MIPS architecture:
Size/MD5 checksum: 193058 46aa1ad7a702c9214e028c7f1f7bf877
PowerPC architecture:
Size/MD5 checksum: 176780 074f39b9dcc3d4d47f73c8e2052ff91c
IBM S/390 architecture:
Size/MD5 checksum: 174304 72e42bf4582d67d69b2f6bc84961f7db
Sun Sparc architecture:
Size/MD5 checksum: 179182 e1ebe0dec3667c68f8213827e66826fe
These files will probably be moved into the stable distribution on
its next revision.