| 1 |
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
| 2 |
Gentoo Linux Security Advisory GLSA 200807-16 |
| 3 |
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
| 4 |
http://security.gentoo.org/ |
| 5 |
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
| 6 |
|
| 7 |
Severity: Normal |
| 8 |
Title: Python: Multiple vulnerabilities |
| 9 |
Date: July 31, 2008 |
| 10 |
Bugs: #230640, #232137 |
| 11 |
ID: 200807-16 |
| 12 |
|
| 13 |
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
| 14 |
|
| 15 |
Synopsis |
| 16 |
======== |
| 17 |
|
| 18 |
Multiple vulnerabilities in Python may allow for the execution of |
| 19 |
arbitrary code. |
| 20 |
|
| 21 |
Background |
| 22 |
========== |
| 23 |
|
| 24 |
Python is an interpreted, interactive, object-oriented programming |
| 25 |
language. |
| 26 |
|
| 27 |
Affected packages |
| 28 |
================= |
| 29 |
|
| 30 |
------------------------------------------------------------------- |
| 31 |
Package / Vulnerable / Unaffected |
| 32 |
------------------------------------------------------------------- |
| 33 |
1 dev-lang/python < 2.5.2-r6 *>= 2.4.4-r14 |
| 34 |
>= 2.5.2-r6 |
| 35 |
|
| 36 |
Description |
| 37 |
=========== |
| 38 |
|
| 39 |
Multiple vulnerabilities were discovered in Python: |
| 40 |
|
| 41 |
* David Remahl of Apple Product Security reported several integer |
| 42 |
overflows in core modules such as stringobject, unicodeobject, |
| 43 |
bufferobject, longobject, tupleobject, stropmodule, gcmodule, |
| 44 |
mmapmodule (CVE-2008-2315). |
| 45 |
|
| 46 |
* David Remahl of Apple Product Security also reported an integer |
| 47 |
overflow in the hashlib module, leading to unreliable cryptographic |
| 48 |
digest results (CVE-2008-2316). |
| 49 |
|
| 50 |
* Justin Ferguson reported multiple buffer overflows in unicode |
| 51 |
string processing that only affect 32bit systems (CVE-2008-3142). |
| 52 |
|
| 53 |
* The Google Security Team reported multiple integer overflows |
| 54 |
(CVE-2008-3143). |
| 55 |
|
| 56 |
* Justin Ferguson reported multiple integer underflows and overflows |
| 57 |
in the PyOS_vsnprintf() function, and an off-by-one error when |
| 58 |
passing zero-length strings, leading to memory corruption |
| 59 |
(CVE-2008-3144). |
| 60 |
|
| 61 |
Impact |
| 62 |
====== |
| 63 |
|
| 64 |
A remote attacker could exploit these vulnerabilities in Python |
| 65 |
applications or daemons that pass user-controlled input to vulnerable |
| 66 |
functions. Exploitation might lead to the execution of arbitrary code |
| 67 |
or a Denial of Service. Vulnerabilities within the hashlib might lead |
| 68 |
to weakened cryptographic protection of data integrity or authenticity. |
| 69 |
|
| 70 |
Workaround |
| 71 |
========== |
| 72 |
|
| 73 |
There is no known workaround at this time. |
| 74 |
|
| 75 |
Resolution |
| 76 |
========== |
| 77 |
|
| 78 |
All Python 2.4 users should upgrade to the latest version: |
| 79 |
|
| 80 |
# emerge --sync |
| 81 |
# emerge --ask --oneshot --verbose ">=dev-lang/python-2.4.4-r14" |
| 82 |
|
| 83 |
All Python 2.5 users should upgrade to the latest version: |
| 84 |
|
| 85 |
# emerge --sync |
| 86 |
# emerge --ask --oneshot --verbose ">=dev-lang/python-2.5.2-r6" |
| 87 |
|
| 88 |
Please note that Python 2.3 is masked since June 24, and we will not be |
| 89 |
releasing updates to it. It will be removed from the tree in the near |
| 90 |
future. |
| 91 |
|
| 92 |
References |
| 93 |
========== |
| 94 |
|
| 95 |
[ 1 ] CVE-2008-2315 |
| 96 |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2315 |
| 97 |
[ 2 ] CVE-2008-2316 |
| 98 |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2316 |
| 99 |
[ 3 ] CVE-2008-3142 |
| 100 |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3142 |
| 101 |
[ 4 ] CVE-2008-3143 |
| 102 |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3143 |
| 103 |
[ 5 ] CVE-2008-3144 |
| 104 |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3144 |
| 105 |
|
| 106 |
Availability |
| 107 |
============ |
| 108 |
|
| 109 |
This GLSA and any updates to it are available for viewing at |
| 110 |
the Gentoo Security Website: |
| 111 |
|
| 112 |
http://security.gentoo.org/glsa/glsa-200807-16.xml |
| 113 |
|
| 114 |
Concerns? |
| 115 |
========= |
| 116 |
|
| 117 |
Security is a primary focus of Gentoo Linux and ensuring the |
| 118 |
confidentiality and security of our users machines is of utmost |
| 119 |
importance to us. Any security concerns should be addressed to |
| 120 |
security@g.o or alternatively, you may file a bug at |
| 121 |
http://bugs.gentoo.org. |
| 122 |
|
| 123 |
License |
| 124 |
======= |
| 125 |
|
| 126 |
Copyright 2008 Gentoo Foundation, Inc; referenced text |
| 127 |
belongs to its owner(s). |
| 128 |
|
| 129 |
The contents of this document are licensed under the |
| 130 |
Creative Commons - Attribution / Share Alike license. |
| 131 |
|
| 132 |
http://creativecommons.org/licenses/by-sa/2.5 |
Archives