| 1 |
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
| 2 |
Gentoo Linux Security Advisory GLSA 200807-01 |
| 3 |
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
| 4 |
http://security.gentoo.org/ |
| 5 |
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
| 6 |
|
| 7 |
Severity: Normal |
| 8 |
Title: Python: Multiple integer overflows |
| 9 |
Date: July 01, 2008 |
| 10 |
Bugs: #216673, #217221 |
| 11 |
ID: 200807-01 |
| 12 |
|
| 13 |
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
| 14 |
|
| 15 |
Synopsis |
| 16 |
======== |
| 17 |
|
| 18 |
Multiple integer overflows may allow for Denial of Service. |
| 19 |
|
| 20 |
Background |
| 21 |
========== |
| 22 |
|
| 23 |
Python is an interpreted, interactive, object-oriented programming |
| 24 |
language. |
| 25 |
|
| 26 |
Affected packages |
| 27 |
================= |
| 28 |
|
| 29 |
------------------------------------------------------------------- |
| 30 |
Package / Vulnerable / Unaffected |
| 31 |
------------------------------------------------------------------- |
| 32 |
1 dev-lang/python < 2.4.4-r13 *>= 2.3.6-r6 |
| 33 |
>= 2.4.4-r13 |
| 34 |
|
| 35 |
Description |
| 36 |
=========== |
| 37 |
|
| 38 |
Multiple vulnerabilities were discovered in Python: |
| 39 |
|
| 40 |
* David Remahl reported multiple integer overflows in the file |
| 41 |
imageop.c, leading to a heap-based buffer overflow (CVE-2008-1679). |
| 42 |
This issue is due to an incomplete fix for CVE-2007-4965. |
| 43 |
|
| 44 |
* Justin Ferguson discovered that an integer signedness error in the |
| 45 |
zlib extension module might trigger insufficient memory allocation |
| 46 |
and a buffer overflow via a negative signed integer (CVE-2008-1721). |
| 47 |
|
| 48 |
* Justin Ferguson discovered that insufficient input validation in |
| 49 |
the PyString_FromStringAndSize() function might lead to a buffer |
| 50 |
overflow (CVE-2008-1887). |
| 51 |
|
| 52 |
Impact |
| 53 |
====== |
| 54 |
|
| 55 |
A remote attacker could exploit these vulnerabilities to cause a Denial |
| 56 |
of Service or possibly the remote execution of arbitrary code with the |
| 57 |
privileges of the user running Python. |
| 58 |
|
| 59 |
Workaround |
| 60 |
========== |
| 61 |
|
| 62 |
There is no known workaround at this time. |
| 63 |
|
| 64 |
Resolution |
| 65 |
========== |
| 66 |
|
| 67 |
The imageop module is no longer built in the unaffected versions. |
| 68 |
|
| 69 |
All Python 2.3 users should upgrade to the latest version: |
| 70 |
|
| 71 |
# emerge --sync |
| 72 |
# emerge --ask --oneshot --verbose ">=dev-lang/python-2.3.6-r6" |
| 73 |
|
| 74 |
All Python 2.4 users should upgrade to the latest version: |
| 75 |
|
| 76 |
# emerge --sync |
| 77 |
# emerge --ask --oneshot --verbose ">=dev-lang/python-2.4.4-r13" |
| 78 |
|
| 79 |
References |
| 80 |
========== |
| 81 |
|
| 82 |
[ 1 ] CVE-2008-1679 |
| 83 |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1679 |
| 84 |
[ 2 ] CVE-2008-1721 |
| 85 |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1721 |
| 86 |
[ 3 ] CVE-2008-1887 |
| 87 |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1887 |
| 88 |
|
| 89 |
Availability |
| 90 |
============ |
| 91 |
|
| 92 |
This GLSA and any updates to it are available for viewing at |
| 93 |
the Gentoo Security Website: |
| 94 |
|
| 95 |
http://security.gentoo.org/glsa/glsa-200807-01.xml |
| 96 |
|
| 97 |
Concerns? |
| 98 |
========= |
| 99 |
|
| 100 |
Security is a primary focus of Gentoo Linux and ensuring the |
| 101 |
confidentiality and security of our users machines is of utmost |
| 102 |
importance to us. Any security concerns should be addressed to |
| 103 |
security@g.o or alternatively, you may file a bug at |
| 104 |
http://bugs.gentoo.org. |
| 105 |
|
| 106 |
License |
| 107 |
======= |
| 108 |
|
| 109 |
Copyright 2008 Gentoo Foundation, Inc; referenced text |
| 110 |
belongs to its owner(s). |
| 111 |
|
| 112 |
The contents of this document are licensed under the |
| 113 |
Creative Commons - Attribution / Share Alike license. |
| 114 |
|
| 115 |
http://creativecommons.org/licenses/by-sa/2.5 |
Archives