GLSA-200810-01 : WordNet: Execution of arbitrary code

This script is Copyright (C) 2008-2014 Tenable Network Security, Inc.


Synopsis :

The remote Gentoo host is missing one or more security-related
patches.

Description :

The remote host is affected by the vulnerability described in GLSA-200810-01
(WordNet: Execution of arbitrary code)

Jukka Ruohonen initially reported a boundary error within the
searchwn() function in src/wn.c. A thorough investigation by the oCERT
team revealed several other vulnerabilities in WordNet:
Jukka Ruohonen and Rob Holland (oCERT) reported multiple boundary
errors within the searchwn() function in src/wn.c, the wngrep()
function in lib/search.c, the morphstr() and morphword() functions in
lib/morph.c, and the getindex() in lib/search.c, which lead to
stack-based buffer overflows.
Rob Holland (oCERT) reported two
boundary errors within the do_init() function in lib/morph.c, which
lead to stack-based buffer overflows via specially crafted
'WNSEARCHDIR' or 'WNHOME' environment variables.
Rob Holland
(oCERT) reported multiple boundary errors in the bin_search() and
bin_search_key() functions in binsrch.c, which lead to stack-based
buffer overflows via specially crafted data files.
Rob Holland
(oCERT) reported a boundary error within the parse_index() function in
lib/search.c, which leads to a heap-based buffer overflow via specially
crafted data files.

Impact :

In case the application is accessible e.g. via a web server,
a remote attacker could pass overly long strings as arguments to the
'wm' binary, possibly leading to the execution of arbitrary code.
A local attacker could exploit the second vulnerability via
specially crafted 'WNSEARCHDIR' or 'WNHOME' environment variables,
possibly leading to the execution of arbitrary code with escalated
privileges.
A local attacker could exploit the third and
fourth vulnerability by making the application use specially crafted
data files, possibly leading to the execution of arbitrary code.

Workaround :

There is no known workaround at this time.

See also :

http://www.gentoo.org/security/en/glsa/glsa-200810-01.xml

Solution :

All WordNet users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=app-dicts/wordnet-3.0-r2'

Risk factor :

Critical / CVSS Base Score : 10.0
(CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C)

Family: Gentoo Local Security Checks

Nessus Plugin ID: 34365 (gentoo_GLSA-200810-01.nasl)

Bugtraq ID:

CVE ID: CVE-2008-2149
CVE-2008-3908