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Python 2.2: Buffer overflow in getaddrinfo()


1.  Gentoo Linux Security Advisory

Version Information

Advisory Reference GLSA 200409-03 / Python
Release Date September 02, 2004
Latest Revision September 02, 2004: 01
Impact high
Exploitable remote
Package Vulnerable versions Unaffected versions Architecture(s)
dev-lang/python < 2.2.2 >= 2.2.2, < 2.2 All supported architectures

Related bugreports: #62440


Python 2.2 has a vulnerability in DNS handling when IPV6 is disabled and a malformed IPV6 address is encountered by getaddrinfo().

2.  Impact Information


Python is an interpreted, interactive, object-oriented, cross-platform programming language.


If IPV6 is disabled in Python 2.2, getaddrinfo() is not able to handle IPV6 DNS requests properly and a buffer overflow occurs.


An attacker can execute arbitrary code as the user running python.

3.  Resolution Information


Users with IPV6 enabled are not affected by this vulnerability.


All Python 2.2 users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge sync
# emerge -pv ">=dev-lang/python-2.2.2"
# emerge ">=dev-lang/python-2.2.2"

4.  References


Page updated September 02, 2004

Summary: This is a Gentoo Linux Security Advisory

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