| 1 |
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
| 2 |
Gentoo Linux Security Advisory GLSA 200805-03 |
| 3 |
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
| 4 |
http://security.gentoo.org/ |
| 5 |
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
| 6 |
|
| 7 |
Severity: Normal |
| 8 |
Title: Multiple X11 terminals: Local privilege escalation |
| 9 |
Date: May 07, 2008 |
| 10 |
Bugs: #216833, #217819, #219746, #219750, #219754, #219760, #219762 |
| 11 |
ID: 200805-03 |
| 12 |
|
| 13 |
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
| 14 |
|
| 15 |
Synopsis |
| 16 |
======== |
| 17 |
|
| 18 |
A vulnerability was found in aterm, Eterm, Mrxvt, multi-aterm, RXVT, |
| 19 |
rxvt-unicode, and wterm, allowing for local privilege escalation. |
| 20 |
|
| 21 |
Background |
| 22 |
========== |
| 23 |
|
| 24 |
Aterm, Eterm, Mrxvt, multi-aterm, RXVT, rxvt-unicode, and wterm are X11 |
| 25 |
terminal emulators. |
| 26 |
|
| 27 |
Affected packages |
| 28 |
================= |
| 29 |
|
| 30 |
------------------------------------------------------------------- |
| 31 |
Package / Vulnerable / Unaffected |
| 32 |
------------------------------------------------------------------- |
| 33 |
1 x11-terms/aterm < 1.0.1-r1 >= 1.0.1-r1 |
| 34 |
2 x11-terms/eterm < 0.9.4-r1 >= 0.9.4-r1 |
| 35 |
3 x11-terms/mrxvt < 0.5.3-r2 >= 0.5.3-r2 |
| 36 |
4 x11-terms/multi-aterm < 0.2.1-r1 >= 0.2.1-r1 |
| 37 |
5 x11-terms/rxvt < 2.7.10-r4 >= 2.7.10-r4 |
| 38 |
6 x11-terms/rxvt-unicode < 9.02-r1 >= 9.02-r1 |
| 39 |
7 x11-terms/wterm < 6.2.9-r3 >= 6.2.9-r3 |
| 40 |
------------------------------------------------------------------- |
| 41 |
7 affected packages on all of their supported architectures. |
| 42 |
------------------------------------------------------------------- |
| 43 |
|
| 44 |
Description |
| 45 |
=========== |
| 46 |
|
| 47 |
Bernhard R. Link discovered that Eterm opens a terminal on :0 if the |
| 48 |
"-display" option is not specified and the DISPLAY environment variable |
| 49 |
is not set. Further research by the Gentoo Security Team has shown that |
| 50 |
aterm, Mrxvt, multi-aterm, RXVT, rxvt-unicode, and wterm are also |
| 51 |
affected. |
| 52 |
|
| 53 |
Impact |
| 54 |
====== |
| 55 |
|
| 56 |
A local attacker could exploit this vulnerability to hijack X11 |
| 57 |
terminals of other users. |
| 58 |
|
| 59 |
Workaround |
| 60 |
========== |
| 61 |
|
| 62 |
There is no known workaround at this time. |
| 63 |
|
| 64 |
Resolution |
| 65 |
========== |
| 66 |
|
| 67 |
All aterm users should upgrade to the latest version: |
| 68 |
|
| 69 |
# emerge --sync |
| 70 |
# emerge --ask --oneshot --verbose ">=x11-terms/aterm-1.0.1-r1" |
| 71 |
|
| 72 |
All Eterm users should upgrade to the latest version: |
| 73 |
|
| 74 |
# emerge --sync |
| 75 |
# emerge --ask --oneshot --verbose ">=x11-terms/eterm-0.9.4-r1" |
| 76 |
|
| 77 |
All Mrxvt users should upgrade to the latest version: |
| 78 |
|
| 79 |
# emerge --sync |
| 80 |
# emerge --ask --oneshot --verbose ">=x11-terms/mrxvt-0.5.3-r2" |
| 81 |
|
| 82 |
All multi-aterm users should upgrade to the latest version: |
| 83 |
|
| 84 |
# emerge --sync |
| 85 |
# emerge --ask --oneshot --verbose ">=x11-terms/multi-aterm-0.2.1-r1" |
| 86 |
|
| 87 |
All RXVT users should upgrade to the latest version: |
| 88 |
|
| 89 |
# emerge --sync |
| 90 |
# emerge --ask --oneshot --verbose ">=x11-terms/rxvt-2.7.10-r4" |
| 91 |
|
| 92 |
All rxvt-unicode users should upgrade to the latest version: |
| 93 |
|
| 94 |
# emerge --sync |
| 95 |
# emerge --ask --oneshot --verbose ">=x11-terms/rxvt-unicode-9.02-r1" |
| 96 |
|
| 97 |
All wterm users should upgrade to the latest version: |
| 98 |
|
| 99 |
# emerge --sync |
| 100 |
# emerge --ask --oneshot --verbose ">=x11-terms/wterm-6.2.9-r3" |
| 101 |
|
| 102 |
References |
| 103 |
========== |
| 104 |
|
| 105 |
[ 1 ] CVE-2008-1142 |
| 106 |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1142 |
| 107 |
[ 2 ] CVE-2008-1692 |
| 108 |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1692 |
| 109 |
|
| 110 |
Availability |
| 111 |
============ |
| 112 |
|
| 113 |
This GLSA and any updates to it are available for viewing at |
| 114 |
the Gentoo Security Website: |
| 115 |
|
| 116 |
http://security.gentoo.org/glsa/glsa-200805-03.xml |
| 117 |
|
| 118 |
Concerns? |
| 119 |
========= |
| 120 |
|
| 121 |
Security is a primary focus of Gentoo Linux and ensuring the |
| 122 |
confidentiality and security of our users machines is of utmost |
| 123 |
importance to us. Any security concerns should be addressed to |
| 124 |
security@g.o or alternatively, you may file a bug at |
| 125 |
http://bugs.gentoo.org. |
| 126 |
|
| 127 |
License |
| 128 |
======= |
| 129 |
|
| 130 |
Copyright 2008 Gentoo Foundation, Inc; referenced text |
| 131 |
belongs to its owner(s). |
| 132 |
|
| 133 |
The contents of this document are licensed under the |
| 134 |
Creative Commons - Attribution / Share Alike license. |
| 135 |
|
| 136 |
http://creativecommons.org/licenses/by-sa/2.5 |
Archives