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Advisories: July 7, 2005

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Debian GNU/Linux

Debian Security Advisory DSA 741-1 Martin Schulze
July 7th, 2005

Package : bzip2
Vulnerability : infinite loop
Problem-Type : local (remote)
Debian-specific: no
CVE ID : CAN-2005-1260
Debian Bug : 310803

Chris Evans discovered that a specially crafted archive can trigger an infinete loop in bzip2, a high-quality block-sorting file compressor. During uncompression this results in an indefinitively growing output file which will finally fill up the disk and. 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.

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: 591 2bbebaa9594819a21b293cd679e88f9e
Size/MD5 checksum: 11423 d413545f13911158a7f382a1dc68008b
Size/MD5 checksum: 665198 ee76864958d568677f03db8afad92beb

Alpha architecture:
Size/MD5 checksum: 233882 d3c37c8ad0cb2420ee374b524a92a07c
Size/MD5 checksum: 44560 de6c1c030622783e52c4267ba1b501e3
Size/MD5 checksum: 38716 0f8eef3a5703404e6e9ac0dd11898966

ARM architecture:
Size/MD5 checksum: 230474 e07a9ae2b735d7b66590dd8fb00cd300
Size/MD5 checksum: 38796 7cc672c5a6fea032afa005cfe9dad039
Size/MD5 checksum: 35504 a923ddc75c05df5d07aff126d6f11755

Intel IA-32 architecture:
Size/MD5 checksum: 230044 956cb5c4e8c21ae3021ac4e8f3df1c94
Size/MD5 checksum: 35844 0347c033eb73e0cc20207dd4eb556955
Size/MD5 checksum: 28372 bc465e4913826f411d6859a07cd6247a

Intel IA-64 architecture:
Size/MD5 checksum: 238600 b16122e6bd2a37085ac003ece8545ab2
Size/MD5 checksum: 53758 e17ccb297e38c7fa4c2ccdb569ea4dbe
Size/MD5 checksum: 47592 f1bfbf630c9fd023abb32f67e99167bc

HP Precision architecture:
Size/MD5 checksum: 232234 5264f07a33b904b0b33a7785c1446d82
Size/MD5 checksum: 41122 e6e29616e1b93cd1c2a17f7df0daa6ec
Size/MD5 checksum: 33744 e88276e32923b2298467314e835b4ee8

Motorola 680x0 architecture:
Size/MD5 checksum: 227958 9a248a2c98973a0c2acc108ddd734872
Size/MD5 checksum: 33690 92d2c08e723a48f0bb4f599cee6d2c87
Size/MD5 checksum: 26342 aa65d4c4501693544ab7bf64993bfe0e

Big endian MIPS architecture:
Size/MD5 checksum: 231258 bd0b416bdc17dc6cf0c6cbe039e5e763
Size/MD5 checksum: 37684 616624223d16bd3ba4ec883e19e5551a
Size/MD5 checksum: 32854 9f12e2896db97d60b811ad2fc35858b4

Little endian MIPS architecture:
Size/MD5 checksum: 231230 7072312d3a023281dd67061b02a74b82
Size/MD5 checksum: 37756 b9a1403598e7b0aa9e8e7ff81dedc110
Size/MD5 checksum: 33028 a8b9090f027c22c34e33341b3188b514

PowerPC architecture:
Size/MD5 checksum: 229704 416a8557b1ab191c79360cd1e7d04cd2
Size/MD5 checksum: 37712 5f2539505ce656196d5e12def3e19ce0
Size/MD5 checksum: 31644 2a5ccdc0789aaa91b996e6add8ff9be0

IBM S/390 architecture:
Size/MD5 checksum: 230446 67fddd242f6f0846e0b6f553be167330
Size/MD5 checksum: 38658 c1312c461fd205df9561363e5288bafd
Size/MD5 checksum: 31874 1f3da1b03000aae476009ad7b3de968c

Sun Sparc architecture:
Size/MD5 checksum: 236538 ec72b7afb317a1395bdf660a9d33310a
Size/MD5 checksum: 37304 2e037b1c17a0344add10fbf66472e2ef
Size/MD5 checksum: 30818 c9fc751b79920dc5aa4216785310652a

These files will probably be moved into the stable distribution on its next update.

For apt-get: deb stable/updates main
For dpkg-ftp: dists/stable/updates/main
Mailing list:
Package info: `apt-cache show <pkg>' and<pkg>

Fedora Core

Fedora Update Notification

Product : Fedora Core 4
Name : zlib
Version :
Release : 4.fc4
Summary : The zlib compression and decompression library.

Description :
Zlib is a general-purpose, patent-free, lossless data compression library which is used by many different programs.

Update Information:

This update corrects security problem CAN-2005-2096.

  • Thu Jul 7 2005 Ivana Varekova <>
    • fix bug 162392 - CAN-2005-2096

This update can be downloaded from:

a489413c4b7a326b78ac6b7b053b0f91 SRPMS/zlib-
69498f31d20ea1a6dd46cfe0629e9ac1 ppc/zlib-
8267229b373a61ea018604e93fd42945 ppc/zlib-devel-
5f57401485df6f61b2186826988a1504 ppc/debug/zlib-debuginfo-
680686dc5beb2c82b75612b1b9b575a5 ppc/zlib-
99f0a49bb395993c7a8986f49614ef94 ppc/zlib-devel-
9c7ab779afa76eed8aa28d0042cd0d66 x86_64/zlib-
a6877809fd989cb1314851323f0d6a27 x86_64/zlib-devel-
ec72e12f98ea23c83ab3ef41773904e0 x86_64/debug/zlib-debuginfo-
b4455d2b784b137ecd32e4d55858e618 x86_64/zlib-
8c1403783b6534aa68a8c8b029627dad x86_64/zlib-devel-
b4455d2b784b137ecd32e4d55858e618 i386/zlib-
8c1403783b6534aa68a8c8b029627dad i386/zlib-devel-
69f85961e1210dd9f7cd504376e3fb63 i386/debug/zlib-debuginfo-

This update can also be installed with the Update Agent; you can launch the Update Agent with the 'up2date' command.

Mandriva Linux

Mandriva Linux Security Update Advisory

Package name: zlib
Advisory ID: MDKSA-2005:112
Date: July 6th, 2005
Affected versions: 10.0, 10.1, 10.2, Corporate 3.0

Problem Description:

Tavis Ormandy of the Gentoo Security Project discovered a vulnerability in zlib where a certain data stream would cause zlib to corrupt a data structure, resulting in the linked application to dump core.

The updated packages have been patched to correct this problem.


Updated Packages:

Mandrakelinux 10.0:
45457a67f143e009c4c2e737f72a72cd 10.0/RPMS/zlib1-1.2.1-2.2.100mdk.i586.rpm
fb9cb92b1149a7210c02480adf847268 10.0/RPMS/zlib1-devel-1.2.1-2.2.100mdk.i586.rpm
b2eb2e14dda3854176c63e172be0e1dc 10.0/SRPMS/zlib-1.2.1-2.2.100mdk.src.rpm

Mandrakelinux 10.0/AMD64:
5c26bbcefa548fb0e0455c49d8cab450 amd64/10.0/RPMS/zlib1-1.2.1-2.2.100mdk.amd64.rpm
058815a877ca4bda488042afc0a17fac amd64/10.0/RPMS/zlib1-devel-1.2.1-2.2.100mdk.amd64.rpm
b2eb2e14dda3854176c63e172be0e1dc amd64/10.0/SRPMS/zlib-1.2.1-2.2.100mdk.src.rpm

Mandrakelinux 10.1:
bf14e4c8290d9034414e26a7d064e409 10.1/RPMS/zlib1-
0b40ecfd8214b1b73910576f48d774d7 10.1/RPMS/zlib1-devel-
bc5f28d5cf15cae679899b9b21ec415c 10.1/SRPMS/zlib-

Mandrakelinux 10.1/X86_64:
92562565afb652388ba804f62417978e x86_64/10.1/RPMS/zlib1-
db4015970358e24dca4e876d324b3426 x86_64/10.1/RPMS/zlib1-devel-
bc5f28d5cf15cae679899b9b21ec415c x86_64/10.1/SRPMS/zlib-

Mandrakelinux 10.2:
4044d77bc298ed7b5368a275fb033601 10.2/RPMS/zlib1-
bddf58d123f1b91640cafa687b814cd2 10.2/RPMS/zlib1-devel-
ec8ec911005302a927861e61e075164d 10.2/SRPMS/zlib-

Mandrakelinux 10.2/X86_64:
7ccc1e7502a8223c09dcf04fef816f6a x86_64/10.2/RPMS/zlib1-
0af31a45633b5c9d9e6535949c43d6ad x86_64/10.2/RPMS/zlib1-devel-
ec8ec911005302a927861e61e075164d x86_64/10.2/SRPMS/zlib-

Corporate 3.0:
51822c133a9f4648e80ca563dc67e0e8 corporate/3.0/RPMS/zlib1-1.2.1-2.2.C30mdk.i586.rpm
a0d93b089e10b7c77b94fafe5f7dcfbd corporate/3.0/RPMS/zlib1-devel-1.2.1-2.2.C30mdk.i586.rpm
d6b8d7110c7c3f9887951ff95dc6a473 corporate/3.0/SRPMS/zlib-1.2.1-2.2.C30mdk.src.rpm

Corporate 3.0/X86_64:
2277267171a472b87f509f4df73ef43c x86_64/corporate/3.0/RPMS/zlib1-1.2.1-2.2.C30mdk.x86_64.rpm
523c5ab3f3b6fbbe62a00bb5a99ff1db x86_64/corporate/3.0/RPMS/zlib1-devel-1.2.1-2.2.C30mdk.x86_64.rpm
d6b8d7110c7c3f9887951ff95dc6a473 x86_64/corporate/3.0/SRPMS/zlib-1.2.1-2.2.C30mdk.src.rpm

To upgrade automatically use MandrakeUpdate or urpmi. The verification of md5 checksums and GPG signatures is performed automatically for you.

All packages are signed by Mandriva for security. You can obtain the GPG public key of the Mandriva Security Team by executing:

gpg --recv-keys --keyserver 0x22458A98

You can view other update advisories for Mandriva Linux at:

If you want to report vulnerabilities, please contact


Type Bits/KeyID Date User ID
pub 1024D/22458A98 2000-07-10 Mandriva Security Team <security*>