DSA-1181-1 gzip -- several vulnerabilities

Debian Security Advisory

DSA-1181-1 gzip -- several vulnerabilities

Date Reported:

19 Sep 2006

Affected Packages:

gzip

Vulnerable:

Yes

Security database references:

In Mitre's CVE dictionary: CVE-2006-4334, CVE-2006-4335, CVE-2006-4336, CVE-2006-4337, CVE-2006-4338.

More information:

Tavis Ormandy from the Google Security Team discovered several vulnerabilities in gzip, the GNU compression utility. The Common Vulnerabilities and Exposures project identifies the following problems:

• CVE-2006-4334

  A null pointer dereference may lead to denial of service if gzip is used in an automated manner.

• CVE-2006-4335

  Missing boundary checks may lead to stack modification, allowing execution of arbitrary code.

• CVE-2006-4336

  A buffer underflow in the pack support code may lead to execution of arbitrary code.

• CVE-2006-4337

  A buffer underflow in the LZH support code may lead to execution of arbitrary code.

• CVE-2006-4338

  An infinite loop may lead to denial of service if gzip is used in an automated manner.

For the stable distribution (sarge) these problems have been fixed in version 1.3.5-10sarge2.

For the unstable distribution (sid) these problems have been fixed in version 1.3.5-15.

We recommend that you upgrade your gzip package.

Fixed in:

Debian GNU/Linux 3.1 (sarge)

Source:

http://security.debian.org/pool/updates/main/g/gzip/gzip_1.3.5-10sarge2.dsc

http://security.debian.org/pool/updates/main/g/gzip/gzip_1.3.5-10sarge2.diff.gz

http://security.debian.org/pool/updates/main/g/gzip/gzip_1.3.5.orig.tar.gz

Alpha:

http://security.debian.org/pool/updates/main/g/gzip/gzip_1.3.5-10sarge2_alpha.deb

AMD64:

http://security.debian.org/pool/updates/main/g/gzip/gzip_1.3.5-10sarge2_amd64.deb

ARM:

http://security.debian.org/pool/updates/main/g/gzip/gzip_1.3.5-10sarge2_arm.deb

HPPA:

http://security.debian.org/pool/updates/main/g/gzip/gzip_1.3.5-10sarge2_hppa.deb

Intel IA-32:

http://security.debian.org/pool/updates/main/g/gzip/gzip_1.3.5-10sarge2_i386.deb

Intel IA-64:

http://security.debian.org/pool/updates/main/g/gzip/gzip_1.3.5-10sarge2_ia64.deb

Motorola 680x0:

http://security.debian.org/pool/updates/main/g/gzip/gzip_1.3.5-10sarge2_m68k.deb

Big endian MIPS:

http://security.debian.org/pool/updates/main/g/gzip/gzip_1.3.5-10sarge2_mips.deb

Little endian MIPS:

http://security.debian.org/pool/updates/main/g/gzip/gzip_1.3.5-10sarge2_mipsel.deb

PowerPC:

http://security.debian.org/pool/updates/main/g/gzip/gzip_1.3.5-10sarge2_powerpc.deb

IBM S/390:

http://security.debian.org/pool/updates/main/g/gzip/gzip_1.3.5-10sarge2_s390.deb

Sun Sparc:

http://security.debian.org/pool/updates/main/g/gzip/gzip_1.3.5-10sarge2_sparc.deb

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