Debian Security Advisory

DSA-324-1 ethereal -- several vulnerabilities

Date Reported:

18 Jun 2003

Affected Packages:

ethereal

Vulnerable:

Yes

Security database references:

In Mitre's CVE dictionary: CAN-2003-0428, CAN-2003-0429, CAN-2003-0431, CAN-2003-0432.

More information:

Several of the packet dissectors in ethereal contain string handling bugs which could be exploited using a maliciously crafted packet to cause ethereal to consume excessive amounts of memory, crash, or execute arbitrary code.

These vulnerabilities were announced in the following Ethereal security advisory:

http://www.ethereal.com/appnotes/enpa-sa-00010.html

Ethereal 0.9.4 in Debian 3.0 (woody) is affected by most of the problems described in the advisory, including:

• The DCERPC dissector could try to allocate too much memory while trying to decode an NDR string.
• Bad IPv4 or IPv6 prefix lengths could cause an overflow in the OSI dissector.
• The tvb_get_nstringz0() routine incorrectly handled a zero-length buffer size.
• The BGP, WTP, DNS, 802.11, ISAKMP, WSP, CLNP, and ISIS dissectors handled strings improperly.

The following problems do not affect this version:

• The SPNEGO dissector could segfault while parsing an invalid ASN.1 value.
• The RMI dissector handled strings improperly

as these modules are not present.

For the stable distribution (woody) these problems have been fixed in version 0.9.4-1woody5.

For the old stable distribution (potato) these problems will be fixed in a future advisory.

For the unstable distribution (sid) these problems are fixed in version 0.9.13-1.

We recommend that you update your ethereal package.

Fixed in:

Debian GNU/Linux 3.0 (woody)

Source:

http://security.debian.org/pool/updates/main/e/ethereal/ethereal_0.9.4-1woody5.dsc

http://security.debian.org/pool/updates/main/e/ethereal/ethereal_0.9.4-1woody5.diff.gz

http://security.debian.org/pool/updates/main/e/ethereal/ethereal_0.9.4.orig.tar.gz

Alpha:

http://security.debian.org/pool/updates/main/e/ethereal/ethereal_0.9.4-1woody5_alpha.deb

http://security.debian.org/pool/updates/main/e/ethereal/ethereal-common_0.9.4-1woody5_alpha.deb

http://security.debian.org/pool/updates/main/e/ethereal/ethereal-dev_0.9.4-1woody5_alpha.deb

http://security.debian.org/pool/updates/main/e/ethereal/tethereal_0.9.4-1woody5_alpha.deb

ARM:

http://security.debian.org/pool/updates/main/e/ethereal/ethereal_0.9.4-1woody5_arm.deb

http://security.debian.org/pool/updates/main/e/ethereal/ethereal-common_0.9.4-1woody5_arm.deb

http://security.debian.org/pool/updates/main/e/ethereal/ethereal-dev_0.9.4-1woody5_arm.deb

http://security.debian.org/pool/updates/main/e/ethereal/tethereal_0.9.4-1woody5_arm.deb

Intel IA-32:

http://security.debian.org/pool/updates/main/e/ethereal/ethereal_0.9.4-1woody5_i386.deb

http://security.debian.org/pool/updates/main/e/ethereal/ethereal-common_0.9.4-1woody5_i386.deb

http://security.debian.org/pool/updates/main/e/ethereal/ethereal-dev_0.9.4-1woody5_i386.deb

http://security.debian.org/pool/updates/main/e/ethereal/tethereal_0.9.4-1woody5_i386.deb

Intel IA-64:

http://security.debian.org/pool/updates/main/e/ethereal/ethereal_0.9.4-1woody5_ia64.deb

http://security.debian.org/pool/updates/main/e/ethereal/ethereal-common_0.9.4-1woody5_ia64.deb

http://security.debian.org/pool/updates/main/e/ethereal/ethereal-dev_0.9.4-1woody5_ia64.deb

http://security.debian.org/pool/updates/main/e/ethereal/tethereal_0.9.4-1woody5_ia64.deb

HPPA:

http://security.debian.org/pool/updates/main/e/ethereal/ethereal_0.9.4-1woody5_hppa.deb

http://security.debian.org/pool/updates/main/e/ethereal/ethereal-common_0.9.4-1woody5_hppa.deb

http://security.debian.org/pool/updates/main/e/ethereal/ethereal-dev_0.9.4-1woody5_hppa.deb

http://security.debian.org/pool/updates/main/e/ethereal/tethereal_0.9.4-1woody5_hppa.deb

Motorola 680x0:

http://security.debian.org/pool/updates/main/e/ethereal/ethereal_0.9.4-1woody5_m68k.deb

http://security.debian.org/pool/updates/main/e/ethereal/ethereal-common_0.9.4-1woody5_m68k.deb

http://security.debian.org/pool/updates/main/e/ethereal/ethereal-dev_0.9.4-1woody5_m68k.deb

http://security.debian.org/pool/updates/main/e/ethereal/tethereal_0.9.4-1woody5_m68k.deb

Big endian MIPS:

http://security.debian.org/pool/updates/main/e/ethereal/ethereal_0.9.4-1woody5_mips.deb

http://security.debian.org/pool/updates/main/e/ethereal/ethereal-common_0.9.4-1woody5_mips.deb

http://security.debian.org/pool/updates/main/e/ethereal/ethereal-dev_0.9.4-1woody5_mips.deb

http://security.debian.org/pool/updates/main/e/ethereal/tethereal_0.9.4-1woody5_mips.deb

Little endian MIPS:

http://security.debian.org/pool/updates/main/e/ethereal/ethereal_0.9.4-1woody5_mipsel.deb

http://security.debian.org/pool/updates/main/e/ethereal/ethereal-common_0.9.4-1woody5_mipsel.deb

http://security.debian.org/pool/updates/main/e/ethereal/ethereal-dev_0.9.4-1woody5_mipsel.deb

http://security.debian.org/pool/updates/main/e/ethereal/tethereal_0.9.4-1woody5_mipsel.deb

PowerPC:

http://security.debian.org/pool/updates/main/e/ethereal/ethereal_0.9.4-1woody5_powerpc.deb

http://security.debian.org/pool/updates/main/e/ethereal/ethereal-common_0.9.4-1woody5_powerpc.deb

http://security.debian.org/pool/updates/main/e/ethereal/ethereal-dev_0.9.4-1woody5_powerpc.deb

http://security.debian.org/pool/updates/main/e/ethereal/tethereal_0.9.4-1woody5_powerpc.deb

IBM S/390:

http://security.debian.org/pool/updates/main/e/ethereal/ethereal_0.9.4-1woody5_s390.deb

http://security.debian.org/pool/updates/main/e/ethereal/ethereal-common_0.9.4-1woody5_s390.deb

http://security.debian.org/pool/updates/main/e/ethereal/ethereal-dev_0.9.4-1woody5_s390.deb

http://security.debian.org/pool/updates/main/e/ethereal/tethereal_0.9.4-1woody5_s390.deb

Sun Sparc:

http://security.debian.org/pool/updates/main/e/ethereal/ethereal_0.9.4-1woody5_sparc.deb

http://security.debian.org/pool/updates/main/e/ethereal/ethereal-common_0.9.4-1woody5_sparc.deb

http://security.debian.org/pool/updates/main/e/ethereal/ethereal-dev_0.9.4-1woody5_sparc.deb

http://security.debian.org/pool/updates/main/e/ethereal/tethereal_0.9.4-1woody5_sparc.deb

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