DSA-2074-1 ncompress -- integer underflow

Debian Security Advisory

DSA-2074-1 ncompress -- integer underflow

Date Reported:

21 Jul 2010

Affected Packages:

ncompress

Vulnerable:

Yes

Security database references:

In Mitre's CVE dictionary: CVE-2010-0001.

More information:

Aki Helin discovered an integer underflow in ncompress, the original Lempel-Ziv compress/uncompress programs. This could lead to the execution of arbitrary code when trying to decompress a crafted LZW compressed gzip archive.

For the stable distribution (lenny), this problem has been fixed in version 4.2.4.2-1+lenny1.

For the testing (squeeze) and unstable (sid) distribution, this problem has been fixed in version 4.2.4.3-1.

We recommend that you upgrade your ncompress package.

Fixed in:

Debian GNU/Linux 5.0 (lenny)

Source:

http://security.debian.org/pool/updates/main/n/ncompress/ncompress_4.2.4.2-1+lenny1.dsc

http://security.debian.org/pool/updates/main/n/ncompress/ncompress_4.2.4.2-1+lenny1.diff.gz

http://security.debian.org/pool/updates/main/n/ncompress/ncompress_4.2.4.2.orig.tar.gz

Alpha:

http://security.debian.org/pool/updates/main/n/ncompress/ncompress_4.2.4.2-1+lenny1_alpha.deb

AMD64:

http://security.debian.org/pool/updates/main/n/ncompress/ncompress_4.2.4.2-1+lenny1_amd64.deb

ARM:

http://security.debian.org/pool/updates/main/n/ncompress/ncompress_4.2.4.2-1+lenny1_arm.deb

ARM EABI:

http://security.debian.org/pool/updates/main/n/ncompress/ncompress_4.2.4.2-1+lenny1_armel.deb

HP Precision:

http://security.debian.org/pool/updates/main/n/ncompress/ncompress_4.2.4.2-1+lenny1_hppa.deb

Intel IA-32:

http://security.debian.org/pool/updates/main/n/ncompress/ncompress_4.2.4.2-1+lenny1_i386.deb

Intel IA-64:

http://security.debian.org/pool/updates/main/n/ncompress/ncompress_4.2.4.2-1+lenny1_ia64.deb

Big-endian MIPS:

http://security.debian.org/pool/updates/main/n/ncompress/ncompress_4.2.4.2-1+lenny1_mips.deb

Little-endian MIPS:

http://security.debian.org/pool/updates/main/n/ncompress/ncompress_4.2.4.2-1+lenny1_mipsel.deb

PowerPC:

http://security.debian.org/pool/updates/main/n/ncompress/ncompress_4.2.4.2-1+lenny1_powerpc.deb

IBM S/390:

http://security.debian.org/pool/updates/main/n/ncompress/ncompress_4.2.4.2-1+lenny1_s390.deb

Sun Sparc:

http://security.debian.org/pool/updates/main/n/ncompress/ncompress_4.2.4.2-1+lenny1_sparc.deb

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