Python PyString_FromStringAndSize() buffer overflow
| python-pystringfromstringandsize-bo (41944) |  High Risk |
Description:
Python is vulnerable to a buffer overflow, caused by improper bounds checking when assert() is disabled. By passing a negative size value to the PyString_FromStringAndSize() function, a remote attacker could overflow a buffer and execute arbitrary code on the system with elevated privileges or cause the application to crash.
*CVSS:
| Base Score: | 7.5 |
| Access Vector: | Network |
| Access Complexity: | Low |
| Authentication: | None |
| Confidentiality Impact: | Partial |
| Integrity Impact: | Partial |
| Availability Impact: | Partial |
| Temporal Score: | 5.5 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Gain Access
Remedy:
Apply the appropriate update for your system. See References.
For Apple Mac OS:
Apply the appropriate update for your system. See References.
For other distributions:
Apply the appropriate update for your system. See References.
References:
- Apple Web site: About the security content of Security Update 2009-001 .
- BugTraq Mailing List, Fri Apr 11 2008 - 15:20:42 CDT: IOActive Security Advisory: Incorrect input validation in PyString_FromStringAndSize() leads to multiple buffer overflows.
- Python Bugs: Issue 2587: PyString_FromStringAndSize() to be considered unsafe.
- ASA-2009-305: python security update (RHSA-2009-1176)
- BID-28749: Python 'stringobject.c' Multiple Remote Buffer Overflow Vulnerabilities
- CVE-2008-1887: Python 2.5.2 and earlier allows context-dependent attackers to execute arbitrary code via multiple vectors that cause a negative size value to be provided to the PyString_FromStringAndSize function, which allocates less memory than expected when assert() is disabled and triggers a buffer overflow.
- DSA-1551: python2.4 -- several vulnerabilities
- DSA-1620: python2.5 -- several vulnerabilities
- GLSA-200807-01: Python: Multiple integer overflows
- MDVSA-2008:085: Updated python packages fix arbitrary code execution vulnerability
- RHSA-2009-1176: Moderate: python security update
- RHSA-2009-1177: Moderate: python security update
- RHSA-2009-1178: Moderate: python security update
- SA33937: Apple Mac OS X Security Update Fixes Multiple Vulnerabilities
- SUSE-SR:2008:017: SUSE Security Summary Report
- USN-632-1: Python vulnerabilities
- VUPEN/ADV-2009-3316: VMware Products Multiple Code Execution and Security Bypass Issues
Platforms Affected:
- Apple Mac OS X 10.4.11
- Apple Mac OS X 10.5.6
- Apple Mac OS X Server 10.4.11
- Apple Mac OS X Server 10.5.6
- Canonical Ubuntu 6.06 LTS
- Canonical Ubuntu 7.04
- Canonical Ubuntu 7.10
- Canonical Ubuntu 8.04 LTS
- Debian Debian Linux 4.0
- Gentoo Linux
- MandrakeSoft Mandrake Linux 2007.1
- MandrakeSoft Mandrake Linux 2007.1 X86_64
- MandrakeSoft Mandrake Linux 2008.0
- MandrakeSoft Mandrake Linux 2008.0 X86_64
- MandrakeSoft Mandrake Linux 2008.1
- MandrakeSoft Mandrake Linux 2008.1 X86_64
- MandrakeSoft Mandrake Linux Corporate Server 3.0 X86_64
- MandrakeSoft Mandrake Linux Corporate Server 3.0
- MandrakeSoft Mandrake Linux Corporate Server 4.0
- MandrakeSoft Mandrake Linux Corporate Server 4.0 X86_64
- MandrakeSoft Mandrake Multi Network Firewall 2.0
- Python Python 1.5.2
- Python Python 1.6
- Python Python 1.6.1
- Python Python 2.0
- Python Python 2.0.1
- Python Python 2.1
- Python Python 2.1.1
- Python Python 2.1.2
- Python Python 2.1.3
- Python Python 2.2
- Python Python 2.2.1
- Python Python 2.2.2
- Python Python 2.2.3
- Python Python 2.3
- Python Python 2.3.1
- Python Python 2.3.2
- Python Python 2.3.3
- Python Python 2.3.4
- Python Python 2.3.5
- Python Python 2.3.6
- Python Python 2.4
- Python Python 2.4.1
- Python Python 2.4.2
- Python Python 2.4.3
- Python Python 2.4.4
- Python Python 2.5 Alpha1
- Python Python 2.5
- Python Python 2.5 rc2
- Python Python 2.5 rc1
- Python Python 2.5 Final
- Python Python 2.5 Beta3
- Python Python 2.5 Beta2
- Python Python 2.5 Beta1
- Python Python 2.5 Alpha2
- Python Python 2.5.1
- Python Python 2.5.2
- RedHat Enterprise Linux 3 Desktop
- RedHat Enterprise Linux 3 ES
- RedHat Enterprise Linux 3 WS
- RedHat Enterprise Linux 3 AS
- RedHat Enterprise Linux 4 Desktop
- RedHat Enterprise Linux 4 ES
- RedHat Enterprise Linux 4 WS
- RedHat Enterprise Linux 4 AS
- RedHat Enterprise Linux 4.8.z ES
- RedHat Enterprise Linux 4.8.z AS
- RedHat Enterprise Linux 5 Client
- RedHat Enterprise Linux 5 Client Workstation
- RedHat Enterprise Linux 5
- RedHat Enterprise Linux 5.3.z EUS
- RedHat Enterprise Linux Long Life 5.3
Reported:
Apr 11, 2008
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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.