1 |
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
2 |
Gentoo Linux Security Advisory GLSA 200407-18 |
3 |
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
4 |
http://security.gentoo.org/ |
5 |
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
6 |
|
7 |
Severity: Normal |
8 |
Title: mod_ssl: Format string vulnerability |
9 |
Date: July 22, 2004 |
10 |
Bugs: #57379 |
11 |
ID: 200407-18 |
12 |
|
13 |
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
14 |
|
15 |
Synopsis |
16 |
======== |
17 |
|
18 |
A bug in mod_ssl may allow a remote attacker to execute arbitrary code |
19 |
when Apache is configured to use mod_ssl and mod_proxy. |
20 |
|
21 |
Background |
22 |
========== |
23 |
|
24 |
mod_ssl provides Secure Sockets Layer encryption and authentication to |
25 |
Apache 1.3. |
26 |
|
27 |
Affected packages |
28 |
================= |
29 |
|
30 |
------------------------------------------------------------------- |
31 |
Package / Vulnerable / Unaffected |
32 |
------------------------------------------------------------------- |
33 |
1 net-www/mod_ssl <= 2.8.18 >= 2.8.19 |
34 |
|
35 |
Description |
36 |
=========== |
37 |
|
38 |
A bug in ssl_engine_ext.c makes mod_ssl vulnerable to a ssl_log() |
39 |
related format string vulnerability in the mod_proxy hook functions. |
40 |
|
41 |
Impact |
42 |
====== |
43 |
|
44 |
Given the right server configuration, an attacker could execute code as |
45 |
the user running Apache, usually "apache". |
46 |
|
47 |
Workaround |
48 |
========== |
49 |
|
50 |
A server should not be vulnerable if it is not using both mod_ssl and |
51 |
mod_proxy. Otherwise there is no workaround other than to disable |
52 |
mod_ssl. |
53 |
|
54 |
Resolution |
55 |
========== |
56 |
|
57 |
All mod_ssl users should upgrade to the latest version: |
58 |
|
59 |
# emerge sync |
60 |
|
61 |
# emerge -pv ">=net-www/mod_ssl-2.8.19" |
62 |
# emerge ">=net-www/mod_ssl-2.8.19" |
63 |
|
64 |
References |
65 |
========== |
66 |
|
67 |
[ 1 ] mod_ssl Announcement |
68 |
http://marc.theaimsgroup.com/?l=apache-modssl&m=109001100906749&w=2 |
69 |
|
70 |
Availability |
71 |
============ |
72 |
|
73 |
This GLSA and any updates to it are available for viewing at |
74 |
the Gentoo Security Website: |
75 |
|
76 |
http://security.gentoo.org/glsa/glsa-200407-18.xml |
77 |
|
78 |
Concerns? |
79 |
========= |
80 |
|
81 |
Security is a primary focus of Gentoo Linux and ensuring the |
82 |
confidentiality and security of our users machines is of utmost |
83 |
importance to us. Any security concerns should be addressed to |
84 |
security@g.o or alternatively, you may file a bug at |
85 |
http://bugs.gentoo.org. |
86 |
|
87 |
License |
88 |
======= |
89 |
|
90 |
Copyright 2004 Gentoo Foundation, Inc; referenced text |
91 |
belongs to its owner(s). |
92 |
|
93 |
The contents of this document are licensed under the |
94 |
Creative Commons - Attribution / Share Alike license. |
95 |
|
96 |
http://creativecommons.org/licenses/by-sa/1.0 |