| 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 |
Archives