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Debian Linux Security Advisory 843-1

Debian Linux Security Advisory 843-1
Posted Oct 6, 2005
Authored by Debian | Site security.debian.org

Debian Security Advisory DSA 843-1 - Two vulnerabilities have been discovered in the ARC archive program under Unix. Eric Romang discovered that the ARC archive program under Unix creates a temporary file with insecure permissions which may lead to an attacker stealing sensitive information. Joey Schulze discovered that the temporary file was created in an insecure fashion as well, leaving it open to a classic symlink attack.

tags | advisory, vulnerability
systems | linux, unix, debian
advisories | CVE-2005-2945, CVE-2005-2992
MD5 | 8ac5b55a6ff6d73182ba980b666f5772

Debian Linux Security Advisory 843-1

Change Mirror Download
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- --------------------------------------------------------------------------
Debian Security Advisory DSA 843-1 security@debian.org
http://www.debian.org/security/ Martin Schulze
October 5th, 2005 http://www.debian.org/security/faq
- --------------------------------------------------------------------------

Package : arc
Vulnerability : insecure temporary file
Problem type : local
Debian-specific: no
CVE ID : CAN-2005-2945 CAN-2005-2992

Two vulnerabilities have been discovered in the ARC archive program
under Unix. The Common Vulnerabilities and Exposures project
identifies the following problems:

CAN-2005-2945

Eric Romang discovered that the ARC archive program under Unix
creates a temporary file with insecure permissions which may lead
to an attacker stealing sensitive information.

CAN-2005-2992

Joey Schulze discovered that the temporary file was created in an
insecure fashion as well, leaving it open to a classic symlink
attack.

The old stable distribution (woody) does not contain arc packages.

For the stable distribution (sarge) these problems have been fixed in
version 5.21l-1sarge1.

For the unstable distribution (sid) these problems have been fixed in
version 5.21m-1.

We recommend that you upgrade your arc 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 3.1 alias sarge
- --------------------------------

Source archives:

http://security.debian.org/pool/updates/main/a/arc/arc_5.21l-1sarge1.dsc
Size/MD5 checksum: 552 4ebba22896668e091043fb909dd7f0b7
http://security.debian.org/pool/updates/main/a/arc/arc_5.21l-1sarge1.diff.gz
Size/MD5 checksum: 3323 1c70a26064195b6664b296313c73cbc0
http://security.debian.org/pool/updates/main/a/arc/arc_5.21l.orig.tar.gz
Size/MD5 checksum: 82134 f30654fbe80640f0219c33d0f2f64021

Alpha architecture:

http://security.debian.org/pool/updates/main/a/arc/arc_5.21l-1sarge1_alpha.deb
Size/MD5 checksum: 67312 081b0a1573d4f3a2ce35e937200a56bd

AMD64 architecture:

http://security.debian.org/pool/updates/main/a/arc/arc_5.21l-1sarge1_amd64.deb
Size/MD5 checksum: 60646 c8edb347de5f20d8f17a93bde98fc9fd

ARM architecture:

http://security.debian.org/pool/updates/main/a/arc/arc_5.21l-1sarge1_arm.deb
Size/MD5 checksum: 57442 2ad784c9a055046c2e47990ae8155001

Intel IA-32 architecture:

http://security.debian.org/pool/updates/main/a/arc/arc_5.21l-1sarge1_i386.deb
Size/MD5 checksum: 55506 f8c3fb1adb553abbcceabdeb5a3aea82

Intel IA-64 architecture:

http://security.debian.org/pool/updates/main/a/arc/arc_5.21l-1sarge1_ia64.deb
Size/MD5 checksum: 73842 d70cebf9b47a8630692450476fe9062c

HP Precision architecture:

http://security.debian.org/pool/updates/main/a/arc/arc_5.21l-1sarge1_hppa.deb
Size/MD5 checksum: 62028 a33d986f66f7ca3d5f582fbf495bb45f

Motorola 680x0 architecture:

http://security.debian.org/pool/updates/main/a/arc/arc_5.21l-1sarge1_m68k.deb
Size/MD5 checksum: 52462 51ad27d071bb88b938de56b58dbe6d0e

Big endian MIPS architecture:

http://security.debian.org/pool/updates/main/a/arc/arc_5.21l-1sarge1_mips.deb
Size/MD5 checksum: 64456 6991489144d5381fe19b73edc104f7a3

Little endian MIPS architecture:

http://security.debian.org/pool/updates/main/a/arc/arc_5.21l-1sarge1_mipsel.deb
Size/MD5 checksum: 64228 c0ba8aaac79f6547d13db04ba13b39bd

PowerPC architecture:

http://security.debian.org/pool/updates/main/a/arc/arc_5.21l-1sarge1_powerpc.deb
Size/MD5 checksum: 60004 85870f99024711bdf1bc5ed32398ce07

IBM S/390 architecture:

http://security.debian.org/pool/updates/main/a/arc/arc_5.21l-1sarge1_s390.deb
Size/MD5 checksum: 60052 5adb2907170ef095d50daf397193cfa2

Sun Sparc architecture:

http://security.debian.org/pool/updates/main/a/arc/arc_5.21l-1sarge1_sparc.deb
Size/MD5 checksum: 57084 88ec040ae647afb844d1c98a4c7a77a7


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: ftp://security.debian.org/debian-security dists/stable/updates/main
Mailing list: debian-security-announce@lists.debian.org
Package info: `apt-cache show <pkg>' and http://packages.debian.org/<pkg>

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