Debian: New gzip packages fix insecure temporary file creation
by Patrick Lenz, in Security - Fri, Jun 6th 2003 23:48 UTC
Paul Szabo discovered that znew, a script included in the gzip package, creates its temporary files without taking precautions to avoid a symlink attack. The gzexe script has a similar vulnerability which was patched in an earlier release but inadvertently reverted. Fixed packages are available from security.debian.org.
Links:
security.debian.org
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Hash: SHA1
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Debian Security Advisory DSA 308-1 security@debian.org
http://www.debian.org/security/ Matt Zimmerman
June 6th, 2003 http://www.debian.org/security/faq
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Package : gzip
Vulnerability : insecure temporary files
Problem-Type : local
Debian-specific: no
CVE Ids : CVE-1999-1332, CAN-2003-0367
Paul Szabo discovered that znew, a script included in the gzip
package, creates its temporary files without taking precautions to
avoid a symlink attack (CAN-2003-0367).
The gzexe script has a similar vulnerability which was patched in an
earlier release but inadvertently reverted.
For the stable distribution (woody) both problems have been fixed in
version 1.3.2-3woody1.
For the old stable distribution (potato) CAN-2003-0367 has been fixed
in version 1.2.4-33.2. This version is not vulnerable to
CVE-1999-1332 due to an earlier patch.
For the unstable distribution (sid) this problem will be fixed soon.
We recommend that you update your gzip 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 3.0 alias woody
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Source archives:
http://security.debian.org/pool/updates/main/g/gzip/gzip_1.3.2-3woody1.dsc
Size/MD5 checksum: 577 affc0d3b073378cd2dc13c2a6772810a
http://security.debian.org/pool/updates/main/g/gzip/gzip_1.3.2-3woody1.diff.gz
Size/MD5 checksum: 5554 abd3dee3183d8c20f58c792206cec6e5
http://security.debian.org/pool/updates/main/g/gzip/gzip_1.3.2.orig.tar.gz
Size/MD5 checksum: 311011 57bff96b6b4bcbb060566bdbed29485d
Alpha architecture:
http://security.debian.org/pool/updates/main/g/gzip/gzip_1.3.2-3woody1_alpha.deb
Size/MD5 checksum: 76240 8b1022a3708b29162831ae85307cb4de
ARM architecture:
http://security.debian.org/pool/updates/main/g/gzip/gzip_1.3.2-3woody1_arm.deb
Size/MD5 checksum: 68538 8f640e909866da6602c2854375fa3b70
Intel IA-32 architecture:
http://security.debian.org/pool/updates/main/g/gzip/gzip_1.3.2-3woody1_i386.deb
Size/MD5 checksum: 61868 a224c831e1a801e980801b63fde5a031
Intel IA-64 architecture:
http://security.debian.org/pool/updates/main/g/gzip/gzip_1.3.2-3woody1_ia64.deb
Size/MD5 checksum: 86622 67e08c2b9b1011544b8303376f920df7
HP Precision architecture:
http://security.debian.org/pool/updates/main/g/gzip/gzip_1.3.2-3woody1_hppa.deb
Size/MD5 checksum: 72366 334d7a9b874026c95ea4a3b37b693691
Motorola 680x0 architecture:
http://security.debian.org/pool/updates/main/g/gzip/gzip_1.3.2-3woody1_m68k.deb
Size/MD5 checksum: 61134 0e8cc087cfb00ec478c48c6f0b177ea1
Big endian MIPS architecture:
http://security.debian.org/pool/updates/main/g/gzip/gzip_1.3.2-3woody1_mips.deb
Size/MD5 checksum: 71524 acc8077c42714b77a73e55ae77a6493f
Little endian MIPS architecture:
http://security.debian.org/pool/updates/main/g/gzip/gzip_1.3.2-3woody1_mipsel.deb
Size/MD5 checksum: 71388 c81151864b2453826712ac969e73535c
PowerPC architecture:
http://security.debian.org/pool/updates/main/g/gzip/gzip_1.3.2-3woody1_powerpc.deb
Size/MD5 checksum: 69062 91de386eef5133dbd777934a3ff6668f
IBM S/390 architecture:
http://security.debian.org/pool/updates/main/g/gzip/gzip_1.3.2-3woody1_s390.deb
Size/MD5 checksum: 66508 391497f880223b95fbf2b6b3d72160eb
Sun Sparc architecture:
http://security.debian.org/pool/updates/main/g/gzip/gzip_1.3.2-3woody1_sparc.deb
Size/MD5 checksum: 70058 3c9c0854327fec243b228108ec29f4b8
Debian GNU/Linux 2.2 alias potato
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Source archives:
http://security.debian.org/pool/updates/main/g/gzip/gzip_1.2.4-33.2.dsc
Size/MD5 checksum: 542 0c5d9c072d3b99c09cf139799b1c1031
http://security.debian.org/pool/updates/main/g/gzip/gzip_1.2.4-33.2.diff.gz
Size/MD5 checksum: 10142 0cec25832d0eaff865a27489f0757d8b
http://security.debian.org/pool/updates/main/g/gzip/gzip_1.2.4.orig.tar.gz
Size/MD5 checksum: 220976 b94b3e07797e0cbf3622bb2fe5682f0b
Alpha architecture:
http://security.debian.org/pool/updates/main/g/gzip/gzip_1.2.4-33.2_alpha.deb
Size/MD5 checksum: 78936 a17b1e7130835c9f08bec9b0ff715bb1
ARM architecture:
http://security.debian.org/pool/updates/main/g/gzip/gzip_1.2.4-33.2_arm.deb
Size/MD5 checksum: 68906 9f0730655e6b5011a0b69800cc032e89
Intel IA-32 architecture:
http://security.debian.org/pool/updates/main/g/gzip/gzip_1.2.4-33.2_i386.deb
Size/MD5 checksum: 62820 77377a288598140ab73d58952c8f2ea4
Motorola 680x0 architecture:
http://security.debian.org/pool/updates/main/g/gzip/gzip_1.2.4-33.2_m68k.deb
Size/MD5 checksum: 62110 27c2275eb1b2331b6b2444fec1e0cc7b
PowerPC architecture:
http://security.debian.org/pool/updates/main/g/gzip/gzip_1.2.4-33.2_powerpc.deb
Size/MD5 checksum: 69882 5b91a3a96fb4bc6efb0d98402f55c4a6
Sun Sparc architecture:
http://security.debian.org/pool/updates/main/g/gzip/gzip_1.2.4-33.2_sparc.deb
Size/MD5 checksum: 71404 4e404ee1024af95725b99abe05bbecf5
These files will probably be moved into the stable distribution on its
next revision.
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For apt-get: deb http://security.debian.org/ stable/updates main
For dpkg-ftp: ftp://security.debian.org/debian-security dists/stable/updates/main
Mailing list: debian-security-announce@lists.debian.org
Package info: `apt-cache show ' and http://packages.debian.org/
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Referenced projects
gzip - GNU compression utility (replacement for compress)
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