CVE-2012-2135

Ubuntu Security Notice USN-1616-1

Severity Score

9.1

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The utf-16 decoder in Python 3.1 through 3.3 does not update the aligned_end variable after calling the unicode_decode_call_errorhandler function, which allows remote attackers to obtain sensitive information (process memory) or cause a denial of service (memory corruption and crash) via unspecified vectors.

El descodificador UTF-16 en Python v3.1 a v3.3 no actualiza la variable aligned_end después de llamar a la función unicode_decode_call_errorhandler, lo que permite a atacantes remotos obtener información sensible (la memoria del proceso) o provocar una denegación de servicio (por corrupción de memoria y caída la aplicación) a través de vectores no especificados.

It was discovered that Python would prepend an empty string to sys.path under certain circumstances. A local attacker with write access to the current working directory could exploit this to execute arbitrary code. This issue only affected Ubuntu 10.04 LTS. It was discovered that the audioop module did not correctly perform input validation. If a user or automated system were tricked into opening a crafted audio file, an attacker could cause a denial of service via application crash. These issues only affected Ubuntu 10.04 LTS. Various other issues were also addressed.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2012-04-04 CVE Reserved
2012-08-14 CVE Published
2024-08-06 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (8)

URL	Tag	Source
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=670389	Third Party Advisory
http://secunia.com/advisories/51087	Third Party Advisory
http://secunia.com/advisories/51089	Third Party Advisory
http://www.openwall.com/lists/oss-security/2012/04/25/2	Mailing List
http://www.openwall.com/lists/oss-security/2012/04/25/4	Mailing List

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://bugs.python.org/issue14579	2023-01-19
http://www.ubuntu.com/usn/USN-1615-1	2023-01-19
http://www.ubuntu.com/usn/USN-1616-1	2023-01-19

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				>= 2.7.0 < 2.7.4 Search vendor "Python" for product "Python" and version " >= 2.7.0 < 2.7.4"		-		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				>= 3.2.0 < 3.2.4 Search vendor "Python" for product "Python" and version " >= 3.2.0 < 3.2.4"		-		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				>= 3.3.0 < 3.3.3 Search vendor "Python" for product "Python" and version " >= 3.3.0 < 3.3.3"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				10.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "10.04"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				11.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "11.04"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				11.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "11.10"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				12.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "12.04"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				12.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "12.10"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				6.0 Search vendor "Debian" for product "Debian Linux" and version "6.0"		-		Affected