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gentooGentoo FoundationGLSA-200807-01
HistoryJul 01, 2008 - 12:00 a.m.

Python: Multiple integer overflows

2008-07-0100:00:00
Gentoo Foundation
security.gentoo.org
13

9.3 High

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:M/Au:N/C:C/I:C/A:C

0.101 Low

EPSS

Percentile

94.8%

Background

Python is an interpreted, interactive, object-oriented programming language.

Description

Multiple vulnerabilities were discovered in Python:

  • David Remahl reported multiple integer overflows in the file imageop.c, leading to a heap-based buffer overflow (CVE-2008-1679). This issue is due to an incomplete fix for CVE-2007-4965.
  • Justin Ferguson discovered that an integer signedness error in the zlib extension module might trigger insufficient memory allocation and a buffer overflow via a negative signed integer (CVE-2008-1721).
  • Justin Ferguson discovered that insufficient input validation in the PyString_FromStringAndSize() function might lead to a buffer overflow (CVE-2008-1887).

Impact

A remote attacker could exploit these vulnerabilities to cause a Denial of Service or possibly the remote execution of arbitrary code with the privileges of the user running Python.

Workaround

There is no known workaround at this time.

Resolution

The imageop module is no longer built in the unaffected versions.

All Python 2.3 users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=dev-lang/python-2.3.6-r6"

All Python 2.4 users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=dev-lang/python-2.4.4-r13"
OSVersionArchitecturePackageVersionFilename
Gentooanyalldev-lang/python<Β 2.4.4-r13UNKNOWN

9.3 High

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:M/Au:N/C:C/I:C/A:C

0.101 Low

EPSS

Percentile

94.8%