Debian Security Advisory

DSA-741-1 bzip2 -- infinite loop

Date Reported:
07 Jul 2005
Affected Packages:
bzip2
Vulnerable:
Yes
Security database references:
In the Debian bugtracking system: Bug 310803.
In Mitre's CVE dictionary: CVE-2005-1260.
More information:

Chris Evans discovered that a specially crafted archive can trigger an infinite loop in bzip2, a high-quality block-sorting file compressor. During uncompression this results in an indefinitely growing output file which will finally fill up the disk. On systems that automatically decompress bzip2 archives this can cause a denial of service.

For the oldstable distribution (woody) this problem has been fixed in version 1.0.2-1.woody5.

For the stable distribution (sarge) this problem has been fixed in version 1.0.2-7.

For the unstable distribution (sid) this problem has been fixed in version 1.0.2-7.

We recommend that you upgrade your bzip2 package.

Fixed in:

Debian GNU/Linux 3.0 (woody)

Source:
http://security.debian.org/pool/updates/main/b/bzip2/bzip2_1.0.2-1.woody5.dsc
http://security.debian.org/pool/updates/main/b/bzip2/bzip2_1.0.2-1.woody5.diff.gz
http://security.debian.org/pool/updates/main/b/bzip2/bzip2_1.0.2.orig.tar.gz
Alpha:
http://security.debian.org/pool/updates/main/b/bzip2/bzip2_1.0.2-1.woody5_alpha.deb
http://security.debian.org/pool/updates/main/b/bzip2/libbz2-1.0_1.0.2-1.woody5_alpha.deb
http://security.debian.org/pool/updates/main/b/bzip2/libbz2-dev_1.0.2-1.woody5_alpha.deb
ARM:
http://security.debian.org/pool/updates/main/b/bzip2/bzip2_1.0.2-1.woody5_arm.deb
http://security.debian.org/pool/updates/main/b/bzip2/libbz2-1.0_1.0.2-1.woody5_arm.deb
http://security.debian.org/pool/updates/main/b/bzip2/libbz2-dev_1.0.2-1.woody5_arm.deb
Intel IA-32:
http://security.debian.org/pool/updates/main/b/bzip2/bzip2_1.0.2-1.woody5_i386.deb
http://security.debian.org/pool/updates/main/b/bzip2/libbz2-1.0_1.0.2-1.woody5_i386.deb
http://security.debian.org/pool/updates/main/b/bzip2/libbz2-dev_1.0.2-1.woody5_i386.deb
Intel IA-64:
http://security.debian.org/pool/updates/main/b/bzip2/bzip2_1.0.2-1.woody5_ia64.deb
http://security.debian.org/pool/updates/main/b/bzip2/libbz2-1.0_1.0.2-1.woody5_ia64.deb
http://security.debian.org/pool/updates/main/b/bzip2/libbz2-dev_1.0.2-1.woody5_ia64.deb
HPPA:
http://security.debian.org/pool/updates/main/b/bzip2/bzip2_1.0.2-1.woody5_hppa.deb
http://security.debian.org/pool/updates/main/b/bzip2/libbz2-1.0_1.0.2-1.woody5_hppa.deb
http://security.debian.org/pool/updates/main/b/bzip2/libbz2-dev_1.0.2-1.woody5_hppa.deb
Motorola 680x0:
http://security.debian.org/pool/updates/main/b/bzip2/bzip2_1.0.2-1.woody5_m68k.deb
http://security.debian.org/pool/updates/main/b/bzip2/libbz2-1.0_1.0.2-1.woody5_m68k.deb
http://security.debian.org/pool/updates/main/b/bzip2/libbz2-dev_1.0.2-1.woody5_m68k.deb
Big endian MIPS:
http://security.debian.org/pool/updates/main/b/bzip2/bzip2_1.0.2-1.woody5_mips.deb
http://security.debian.org/pool/updates/main/b/bzip2/libbz2-1.0_1.0.2-1.woody5_mips.deb
http://security.debian.org/pool/updates/main/b/bzip2/libbz2-dev_1.0.2-1.woody5_mips.deb
Little endian MIPS:
http://security.debian.org/pool/updates/main/b/bzip2/bzip2_1.0.2-1.woody5_mipsel.deb
http://security.debian.org/pool/updates/main/b/bzip2/libbz2-1.0_1.0.2-1.woody5_mipsel.deb
http://security.debian.org/pool/updates/main/b/bzip2/libbz2-dev_1.0.2-1.woody5_mipsel.deb
PowerPC:
http://security.debian.org/pool/updates/main/b/bzip2/bzip2_1.0.2-1.woody5_powerpc.deb
http://security.debian.org/pool/updates/main/b/bzip2/libbz2-1.0_1.0.2-1.woody5_powerpc.deb
http://security.debian.org/pool/updates/main/b/bzip2/libbz2-dev_1.0.2-1.woody5_powerpc.deb
IBM S/390:
http://security.debian.org/pool/updates/main/b/bzip2/bzip2_1.0.2-1.woody5_s390.deb
http://security.debian.org/pool/updates/main/b/bzip2/libbz2-1.0_1.0.2-1.woody5_s390.deb
http://security.debian.org/pool/updates/main/b/bzip2/libbz2-dev_1.0.2-1.woody5_s390.deb
Sun Sparc:
http://security.debian.org/pool/updates/main/b/bzip2/bzip2_1.0.2-1.woody5_sparc.deb
http://security.debian.org/pool/updates/main/b/bzip2/libbz2-1.0_1.0.2-1.woody5_sparc.deb
http://security.debian.org/pool/updates/main/b/bzip2/libbz2-dev_1.0.2-1.woody5_sparc.deb

MD5 checksums of the listed files are available in the original advisory.