DSA-846-1 cpio -- several vulnerabilities

Debian Security Advisory

DSA-846-1 cpio -- several vulnerabilities

Date Reported:

07 Oct 2005

Affected Packages:

cpio

Vulnerable:

Yes

Security database references:

In the Debian bugtracking system: Bug 306693, Bug 305372.
In Mitre's CVE dictionary: CVE-2005-1111, CVE-2005-1229.

More information:

Two vulnerabilities have been discovered in cpio, a program to manage archives of files. The Common Vulnerabilities and Exposures project identifies the following problems:

• CAN-2005-1111

  Imran Ghory discovered a race condition in setting the file permissions of files extracted from cpio archives. A local attacker with write access to the target directory could exploit this to alter the permissions of arbitrary files the extracting user has write permissions for.

• CAN-2005-1229

  Imran Ghory discovered that cpio does not sanitise the path of extracted files even if the --no-absolute-filenames option was specified. This can be exploited to install files in arbitrary locations where the extracting user has write permissions to.

For the old stable distribution (woody) these problems have been fixed in version 2.4.2-39woody2.

For the stable distribution (sarge) these problems have been fixed in version 2.5-1.3.

For the unstable distribution (sid) these problems have been fixed in version 2.6-6.

We recommend that you upgrade your cpio package.

Fixed in:

Debian GNU/Linux 3.0 (woody)

Source:

http://security.debian.org/pool/updates/main/c/cpio/cpio_2.4.2-39woody2.dsc

http://security.debian.org/pool/updates/main/c/cpio/cpio_2.4.2-39woody2.diff.gz

http://security.debian.org/pool/updates/main/c/cpio/cpio_2.4.2.orig.tar.gz

Alpha:

http://security.debian.org/pool/updates/main/c/cpio/cpio_2.4.2-39woody2_alpha.deb

ARM:

http://security.debian.org/pool/updates/main/c/cpio/cpio_2.4.2-39woody2_arm.deb

Intel IA-32:

http://security.debian.org/pool/updates/main/c/cpio/cpio_2.4.2-39woody2_i386.deb

Intel IA-64:

http://security.debian.org/pool/updates/main/c/cpio/cpio_2.4.2-39woody2_ia64.deb

HPPA:

http://security.debian.org/pool/updates/main/c/cpio/cpio_2.4.2-39woody2_hppa.deb

Motorola 680x0:

http://security.debian.org/pool/updates/main/c/cpio/cpio_2.4.2-39woody2_m68k.deb

Big endian MIPS:

http://security.debian.org/pool/updates/main/c/cpio/cpio_2.4.2-39woody2_mips.deb

Little endian MIPS:

http://security.debian.org/pool/updates/main/c/cpio/cpio_2.4.2-39woody2_mipsel.deb

PowerPC:

http://security.debian.org/pool/updates/main/c/cpio/cpio_2.4.2-39woody2_powerpc.deb

IBM S/390:

http://security.debian.org/pool/updates/main/c/cpio/cpio_2.4.2-39woody2_s390.deb

Sun Sparc:

http://security.debian.org/pool/updates/main/c/cpio/cpio_2.4.2-39woody2_sparc.deb

Debian GNU/Linux 3.1 (sarge)

Source:

http://security.debian.org/pool/updates/main/c/cpio/cpio_2.5-1.3.dsc

http://security.debian.org/pool/updates/main/c/cpio/cpio_2.5-1.3.diff.gz

http://security.debian.org/pool/updates/main/c/cpio/cpio_2.5.orig.tar.gz

Alpha:

http://security.debian.org/pool/updates/main/c/cpio/cpio_2.5-1.3_alpha.deb

AMD64:

http://security.debian.org/pool/updates/main/c/cpio/cpio_2.5-1.3_amd64.deb

ARM:

http://security.debian.org/pool/updates/main/c/cpio/cpio_2.5-1.3_arm.deb

Intel IA-32:

http://security.debian.org/pool/updates/main/c/cpio/cpio_2.5-1.3_i386.deb

Intel IA-64:

http://security.debian.org/pool/updates/main/c/cpio/cpio_2.5-1.3_ia64.deb

HPPA:

http://security.debian.org/pool/updates/main/c/cpio/cpio_2.5-1.3_hppa.deb

Motorola 680x0:

http://security.debian.org/pool/updates/main/c/cpio/cpio_2.5-1.3_m68k.deb

Big endian MIPS:

http://security.debian.org/pool/updates/main/c/cpio/cpio_2.5-1.3_mips.deb

Little endian MIPS:

http://security.debian.org/pool/updates/main/c/cpio/cpio_2.5-1.3_mipsel.deb

PowerPC:

http://security.debian.org/pool/updates/main/c/cpio/cpio_2.5-1.3_powerpc.deb

IBM S/390:

http://security.debian.org/pool/updates/main/c/cpio/cpio_2.5-1.3_s390.deb

Sun Sparc:

http://security.debian.org/pool/updates/main/c/cpio/cpio_2.5-1.3_sparc.deb

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