| 1 |
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
| 2 |
Gentoo Linux Security Advisory GLSA 200907-08 |
| 3 |
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
| 4 |
http://security.gentoo.org/ |
| 5 |
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
| 6 |
|
| 7 |
Severity: High |
| 8 |
Title: Multiple Ralink wireless drivers: Execution of arbitrary |
| 9 |
code |
| 10 |
Date: July 12, 2009 |
| 11 |
Bugs: #257023 |
| 12 |
ID: 200907-08 |
| 13 |
|
| 14 |
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
| 15 |
|
| 16 |
Synopsis |
| 17 |
======== |
| 18 |
|
| 19 |
An integer overflow in multiple Ralink wireless drivers might lead to |
| 20 |
the execution of arbitrary code with elevated privileges. |
| 21 |
|
| 22 |
Background |
| 23 |
========== |
| 24 |
|
| 25 |
All listed packages are external kernel modules that provide drivers |
| 26 |
for multiple Ralink devices. ralink-rt61 is released by ralinktech.com, |
| 27 |
the other packages by the rt2x00.serialmonkey.com project. |
| 28 |
|
| 29 |
Affected packages |
| 30 |
================= |
| 31 |
|
| 32 |
------------------------------------------------------------------- |
| 33 |
Package / Vulnerable / Unaffected |
| 34 |
------------------------------------------------------------------- |
| 35 |
1 rt2400 <= 1.2.2_beta3 Vulnerable! |
| 36 |
2 rt2500 <= 1.1.0_pre2007071515 Vulnerable! |
| 37 |
3 rt2570 <= 20070209 Vulnerable! |
| 38 |
4 rt61 <= 1.1.0_beta2 Vulnerable! |
| 39 |
5 ralink-rt61 <= 1.1.1.0 Vulnerable! |
| 40 |
------------------------------------------------------------------- |
| 41 |
NOTE: Certain packages are still vulnerable. Users should migrate |
| 42 |
to another package if one is available or wait for the |
| 43 |
existing packages to be marked stable by their |
| 44 |
architecture maintainers. |
| 45 |
------------------------------------------------------------------- |
| 46 |
5 affected packages on all of their supported architectures. |
| 47 |
------------------------------------------------------------------- |
| 48 |
|
| 49 |
Description |
| 50 |
=========== |
| 51 |
|
| 52 |
Aviv reported an integer overflow in multiple Ralink wireless card |
| 53 |
drivers when processing a probe request packet with a long SSID, |
| 54 |
possibly related to an integer signedness error. |
| 55 |
|
| 56 |
Impact |
| 57 |
====== |
| 58 |
|
| 59 |
A physically proximate attacker could send specially crafted packets to |
| 60 |
a user who has wireless networking enabled, possibly resulting in the |
| 61 |
execution of arbitrary code with root privileges. |
| 62 |
|
| 63 |
Workaround |
| 64 |
========== |
| 65 |
|
| 66 |
Unload the kernel modules. |
| 67 |
|
| 68 |
Resolution |
| 69 |
========== |
| 70 |
|
| 71 |
All external kernel modules have been masked and we recommend that |
| 72 |
users unmerge those drivers. The Linux mainline kernel has equivalent |
| 73 |
support for these devices and the vulnerability has been resolved in |
| 74 |
stable versions of sys-kernel/gentoo-sources. |
| 75 |
|
| 76 |
# emerge --unmerge "net-wireless/rt2400" |
| 77 |
# emerge --unmerge "net-wireless/rt2500" |
| 78 |
# emerge --unmerge "net-wireless/rt2570" |
| 79 |
# emerge --unmerge "net-wireless/rt61" |
| 80 |
# emerge --unmerge "net-wireless/ralink-rt61" |
| 81 |
|
| 82 |
References |
| 83 |
========== |
| 84 |
|
| 85 |
[ 1 ] CVE-2009-0282 |
| 86 |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0282 |
| 87 |
|
| 88 |
Availability |
| 89 |
============ |
| 90 |
|
| 91 |
This GLSA and any updates to it are available for viewing at |
| 92 |
the Gentoo Security Website: |
| 93 |
|
| 94 |
http://security.gentoo.org/glsa/glsa-200907-08.xml |
| 95 |
|
| 96 |
Concerns? |
| 97 |
========= |
| 98 |
|
| 99 |
Security is a primary focus of Gentoo Linux and ensuring the |
| 100 |
confidentiality and security of our users machines is of utmost |
| 101 |
importance to us. Any security concerns should be addressed to |
| 102 |
security@g.o or alternatively, you may file a bug at |
| 103 |
http://bugs.gentoo.org. |
| 104 |
|
| 105 |
License |
| 106 |
======= |
| 107 |
|
| 108 |
Copyright 2009 Gentoo Foundation, Inc; referenced text |
| 109 |
belongs to its owner(s). |
| 110 |
|
| 111 |
The contents of this document are licensed under the |
| 112 |
Creative Commons - Attribution / Share Alike license. |
| 113 |
|
| 114 |
http://creativecommons.org/licenses/by-sa/2.5 |
Archives