Debian: DSA-2074-1: New ncompress packages fix execution of arbitrary code
Summary
Aki Helin discovered an integer underflow in ncompress, the original
Lempel-Ziv compress/uncompress programs.
This could lead to the execution of arbitrary code when trying to decompress
a crafted LZW compressed gzip archive.
For the stable distribution (lenny), this problem has been fixed in
version 4.2.4.2-1+lenny1.
For the testing (squeeze) and unstable (sid) distribution, this
problem has been fixed in version 4.2.4.3-1.
We recommend that you upgrade your ncompress package.
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 5.0 alias lenny
Debian (stable)
- ---------------
Stable updates are available for alpha, amd64, arm, armel, hppa, i386, ia64, mips, mipsel, powerpc, s390 and sparc.
Source archives:
Size/MD5 checksum: 1001 540971822f1077df924611a0795d708c
Size/MD5 checksum: 7958 9e1082cc4b82240e9cd76b09f93adebb
Size/MD5 checksum: 32978 53421df78cc9ff311ce0392e3a729920
alpha architecture (DEC Alpha)
Size/MD5 checksum: 25032 97104b799ed18dda40a495af691097e7
amd64 architecture (AMD x86_64 (AMD64))
Size/MD5 checksum: 24058 ff6531d0a69fd6cffaeb66ef05bc5d53
arm architecture (ARM)
Size/MD5 checksum: 23852 7157e843f9066f7d20e07a83cba0b2e1
armel architecture (ARM EABI)
Size/MD5 checksum: 23740 d4323cbb9d5938850b71514f1edd5ca0
hppa architecture (HP PA RISC)
Size/MD5 checksum: 25466 b276a1839ad20d5dc675a119c76e66e5
i386 architecture (Intel ia32)
Size/MD5 checksum: 23076 a53008254138090e760ec7a51d551bee
ia64 architecture (Intel ia64)
Size/MD5 checksum: 28200 a2736fb1efd14e676ac6a2cb1ec3da46
mips architecture (MIPS (Big Endian))
Size/MD5 checksum: 24106 0b3cf882744400648ddefa54111ae540
mipsel architecture (MIPS (Little Endian))
Size/MD5 checksum: 24204 8c85696714487268c4bf0adb0a9d31b9
powerpc architecture (PowerPC)
Size/MD5 checksum: 24476 98db6645c581ccd5cf35a8ca0ea28966
s390 architecture (IBM S/390)
Size/MD5 checksum: 23944 9e40760b9cfbe73ceb6180da37175892
sparc architecture (Sun SPARC/UltraSPARC)
Size/MD5 checksum: 23860 a422335c694163587222691d9fa728ac
These files will probably be moved into the stable distribution on
its next update.
For apt-get: deb http://security.debian.org/ stable/updates main
For dpkg-ftp: dists/stable/updates/main
Mailing list: debian-security-announce@lists.debian.org
Package info: `apt-cache show