Python up to 2.5 Final assert memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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9.0$0-$5k0.00

A vulnerability was found in Python up to 2.5 Final (Programming Language Software). It has been declared as critical. This vulnerability affects the function assert. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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.

The bug was discovered 04/11/2008. The weakness was shared 04/18/2008 by Alex (Website). The advisory is shared for download at securityfocus.com. This vulnerability was named CVE-2008-1887 since 04/18/2008. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available.

It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 7 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 43771 (CentOS 5 : python (CESA-2009:1176)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CentOS Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 116215 (Apple Mac OS X Security Update 2009-001 Not Installed (APPLE-SA-2009-02-12)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 2 years after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (41944) and Tenable (43771). The entries 3868, 3872, 38543 and 42789 are related to this item.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.0

VulDB Base Score: 10.0
VulDB Temp Score: 9.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 43771
Nessus Name: CentOS 5 : python (CESA-2009:1176)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 60798
OpenVAS Name: Debian Security Advisory DSA 1551-1 (python2.4)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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Timelineinfo

04/11/2008 🔍
04/11/2008 +0 days 🔍
04/18/2008 +7 days 🔍
04/18/2008 +0 days 🔍
04/18/2008 +0 days 🔍
04/18/2008 +0 days 🔍
04/28/2008 +10 days 🔍
07/29/2009 +457 days 🔍
01/06/2010 +161 days 🔍
03/16/2015 +1895 days 🔍
08/09/2019 +1607 days 🔍

Sourcesinfo

Advisory: securityfocus.com⛔
Researcher: Alex
Status: Not defined
Confirmation: 🔍

CVE: CVE-2008-1887 (🔍)
OVAL: 🔍

X-Force: 41944
Vulnerability Center: 18281 - Python Stringobject.c Vulnerability Allows Remote Attackers to Execute Arbitrary Code, High
SecurityFocus: 28749 - Python 'stringobject.c' Multiple Remote Buffer Overflow Vulnerabilities
Secunia: 29889
OSVDB: 44730 - CVE-2008-1887 - Python - Buffer Overflow Issues
Vupen: ADV-2009-3316

See also: 🔍

Entryinfo

Created: 03/16/2015 17:00
Updated: 08/09/2019 18:29
Changes: 03/16/2015 17:00 (75), 08/09/2019 18:29 (9)
Complete: 🔍

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