| 1 |
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
| 2 |
Gentoo Linux Security Advisory GLSA 200810-01 |
| 3 |
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
| 4 |
http://security.gentoo.org/ |
| 5 |
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
| 6 |
|
| 7 |
Severity: Normal |
| 8 |
Title: WordNet: Execution of arbitrary code |
| 9 |
Date: October 07, 2008 |
| 10 |
Bugs: #211491 |
| 11 |
ID: 200810-01 |
| 12 |
|
| 13 |
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
| 14 |
|
| 15 |
Synopsis |
| 16 |
======== |
| 17 |
|
| 18 |
Multiple vulnerabilities were found in WordNet, possibly allowing for |
| 19 |
the execution of arbitrary code. |
| 20 |
|
| 21 |
Background |
| 22 |
========== |
| 23 |
|
| 24 |
WordNet is a large lexical database of English. |
| 25 |
|
| 26 |
Affected packages |
| 27 |
================= |
| 28 |
|
| 29 |
------------------------------------------------------------------- |
| 30 |
Package / Vulnerable / Unaffected |
| 31 |
------------------------------------------------------------------- |
| 32 |
1 app-dicts/wordnet < 3.0-r2 >= 3.0-r2 |
| 33 |
|
| 34 |
Description |
| 35 |
=========== |
| 36 |
|
| 37 |
Jukka Ruohonen initially reported a boundary error within the |
| 38 |
searchwn() function in src/wn.c. A thorough investigation by the oCERT |
| 39 |
team revealed several other vulnerabilities in WordNet: |
| 40 |
|
| 41 |
* Jukka Ruohonen and Rob Holland (oCERT) reported multiple boundary |
| 42 |
errors within the searchwn() function in src/wn.c, the wngrep() |
| 43 |
function in lib/search.c, the morphstr() and morphword() functions in |
| 44 |
lib/morph.c, and the getindex() in lib/search.c, which lead to |
| 45 |
stack-based buffer overflows. |
| 46 |
|
| 47 |
* Rob Holland (oCERT) reported two boundary errors within the |
| 48 |
do_init() function in lib/morph.c, which lead to stack-based buffer |
| 49 |
overflows via specially crafted "WNSEARCHDIR" or "WNHOME" environment |
| 50 |
variables. |
| 51 |
|
| 52 |
* Rob Holland (oCERT) reported multiple boundary errors in the |
| 53 |
bin_search() and bin_search_key() functions in binsrch.c, which lead |
| 54 |
to stack-based buffer overflows via specially crafted data files. |
| 55 |
|
| 56 |
* Rob Holland (oCERT) reported a boundary error within the |
| 57 |
parse_index() function in lib/search.c, which leads to a heap-based |
| 58 |
buffer overflow via specially crafted data files. |
| 59 |
|
| 60 |
Impact |
| 61 |
====== |
| 62 |
|
| 63 |
* In case the application is accessible e.g. via a web server, a |
| 64 |
remote attacker could pass overly long strings as arguments to the |
| 65 |
"wm" binary, possibly leading to the execution of arbitrary code. |
| 66 |
|
| 67 |
* A local attacker could exploit the second vulnerability via |
| 68 |
specially crafted "WNSEARCHDIR" or "WNHOME" environment variables, |
| 69 |
possibly leading to the execution of arbitrary code with escalated |
| 70 |
privileges. |
| 71 |
|
| 72 |
* A local attacker could exploit the third and fourth vulnerability |
| 73 |
by making the application use specially crafted data files, possibly |
| 74 |
leading to the execution of arbitrary code. |
| 75 |
|
| 76 |
Workaround |
| 77 |
========== |
| 78 |
|
| 79 |
There is no known workaround at this time. |
| 80 |
|
| 81 |
Resolution |
| 82 |
========== |
| 83 |
|
| 84 |
All WordNet users should upgrade to the latest version: |
| 85 |
|
| 86 |
# emerge --sync |
| 87 |
# emerge --ask --oneshot --verbose ">=app-dicts/wordnet-3.0-r2" |
| 88 |
|
| 89 |
References |
| 90 |
========== |
| 91 |
|
| 92 |
[ 1 ] CVE-2008-2149 |
| 93 |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2149 |
| 94 |
[ 2 ] CVE-2008-3908 |
| 95 |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3908 |
| 96 |
|
| 97 |
Availability |
| 98 |
============ |
| 99 |
|
| 100 |
This GLSA and any updates to it are available for viewing at |
| 101 |
the Gentoo Security Website: |
| 102 |
|
| 103 |
http://security.gentoo.org/glsa/glsa-200810-01.xml |
| 104 |
|
| 105 |
Concerns? |
| 106 |
========= |
| 107 |
|
| 108 |
Security is a primary focus of Gentoo Linux and ensuring the |
| 109 |
confidentiality and security of our users machines is of utmost |
| 110 |
importance to us. Any security concerns should be addressed to |
| 111 |
security@g.o or alternatively, you may file a bug at |
| 112 |
http://bugs.gentoo.org. |
| 113 |
|
| 114 |
License |
| 115 |
======= |
| 116 |
|
| 117 |
Copyright 2008 Gentoo Foundation, Inc; referenced text |
| 118 |
belongs to its owner(s). |
| 119 |
|
| 120 |
The contents of this document are licensed under the |
| 121 |
Creative Commons - Attribution / Share Alike license. |
| 122 |
|
| 123 |
http://creativecommons.org/licenses/by-sa/2.5 |
Archives