4.7
MEDIUM
CVE-2009-1046
Apache Linux Console UTF-8 Denial of Service
Description

The console selection feature in the Linux kernel 2.6.28 before 2.6.28.4, 2.6.25, and possibly earlier versions, when the UTF-8 console is used, allows physically proximate attackers to cause a denial of service (memory corruption) by selecting a small number of 3-byte UTF-8 characters, which triggers an "off-by-two memory error." NOTE: it is not clear whether this issue crosses privilege boundaries.

INFO

Published Date :

March 23, 2009, 4:30 p.m.

Last Modified :

Nov. 21, 2024, 1:01 a.m.

Remotely Exploitable :

No

Impact Score :

6.9

Exploitability Score :

3.4
Public PoC/Exploit Available at Github

CVE-2009-1046 has a 5 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2009-1046 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2009-1046.

URL Resource
http://lists.openwall.net/linux-kernel/2009/01/30/333 Patch
http://lists.openwall.net/linux-kernel/2009/02/02/364 Patch
http://secunia.com/advisories/34917
http://secunia.com/advisories/34981
http://secunia.com/advisories/35121
http://www.debian.org/security/2009/dsa-1787
http://www.debian.org/security/2009/dsa-1800
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.28.4
http://www.openwall.com/lists/oss-security/2009/02/12/10
http://www.openwall.com/lists/oss-security/2009/02/12/11
http://www.openwall.com/lists/oss-security/2009/02/12/9
http://www.redhat.com/support/errata/RHSA-2009-0451.html
http://www.securityfocus.com/bid/33672 Patch
http://www.ubuntu.com/usn/usn-751-1
http://lists.openwall.net/linux-kernel/2009/01/30/333 Patch
http://lists.openwall.net/linux-kernel/2009/02/02/364 Patch
http://secunia.com/advisories/34917
http://secunia.com/advisories/34981
http://secunia.com/advisories/35121
http://www.debian.org/security/2009/dsa-1787
http://www.debian.org/security/2009/dsa-1800
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.28.4
http://www.openwall.com/lists/oss-security/2009/02/12/10
http://www.openwall.com/lists/oss-security/2009/02/12/11
http://www.openwall.com/lists/oss-security/2009/02/12/9
http://www.redhat.com/support/errata/RHSA-2009-0451.html
http://www.securityfocus.com/bid/33672 Patch
http://www.ubuntu.com/usn/usn-751-1

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

None

Updated: 3 months ago
6 stars 0 fork 0 watcher
Born at : Feb. 25, 2023, 10:40 a.m. This repo has been linked 178 different CVEs too.

A bunch of links related to Linux kernel exploitation

Updated: 9 months, 3 weeks ago
21 stars 4 fork 4 watcher
Born at : Aug. 8, 2018, 8 a.m. This repo has been linked 65 different CVEs too.

Not ready yet

Updated: 4 years, 2 months ago
4 stars 1 fork 1 watcher
Born at : April 29, 2018, 3:43 p.m. This repo has been linked 64 different CVEs too.

Great article related to Linux kernel fuzzing and exploitation

Updated: 8 months, 1 week ago
9 stars 2 fork 2 watcher
Born at : July 10, 2017, 6 p.m. This repo has been linked 54 different CVEs too.

A collection of links related to Linux kernel security and exploitation

linux-kernel kernel-exploitation exploit privilege-escalation security

Updated: 1 day, 12 hours ago
5639 stars 911 fork 911 watcher
Born at : Nov. 13, 2016, 10:21 p.m. This repo has been linked 239 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2009-1046 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2009-1046 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Translated by [email protected]

    Apr. 06, 2016

    Action Type Old Value New Value
    Removed Translation La característica de selección de consola en el Kernel de Linux v2.6.28 anteriores a v2.6.28.4, 2.6.25, y posiblemente otras anteriores, cuando se usa la consola UTF-8, permite a atacantes próximos fisicamente, provocar una denegación de servicio (corrupción de memoria) seleccionando un número pequeño de 3-Bytes de caracteres UTF-8, lo que provoca un "error de memoria off-by-two". NOTA: No queda claro si este hecho se refiere también a una situación de traspaso de frontera de privilegios.
    Added Translation La funcionalidad de selección de consola en el kernel de Linux 2.6.28 en versiones anteriores a 2.6.28.4, 2.6.25 y posiblemente versiones anteriores, cuando se utiliza la consola UTF-8, permite a atacantes físicamente próximos causar una denegación de servicio (corrupción de memoria) seleccionando un número pequeño de carácteres de 3 bytes UTF-8, lo que desencadena un "error de memoria off-by-two". NOTA: no queda claro si el problema traspasa límites de privilegio.
  • CVE Modified by [email protected]

    Apr. 06, 2016

    Action Type Old Value New Value
    Changed Description The console selection feature in the Linux kernel 2.6.28 before 2.6.28.4, 2.6.25, and possibly earlier versions, when the UTF-8 console is used, allows physically proximate attackers to cause a denial of service (memory corruption) by selecting a small number of 3-byte UTF-8 characters, which triggers an "an off-by-two memory error." NOTE: it is not clear whether this issue crosses privilege boundaries. The console selection feature in the Linux kernel 2.6.28 before 2.6.28.4, 2.6.25, and possibly earlier versions, when the UTF-8 console is used, allows physically proximate attackers to cause a denial of service (memory corruption) by selecting a small number of 3-byte UTF-8 characters, which triggers an "off-by-two memory error." NOTE: it is not clear whether this issue crosses privilege boundaries.
  • Initial Analysis by [email protected]

    Mar. 23, 2009

    Action Type Old Value New Value
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2009-1046 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2009-1046 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.07 }} 0.00%

score

0.28994

percentile

CVSS2 - Vulnerability Scoring System
Access Vector
Access Complexity
Authentication
Confidentiality
Integrity
Availability