Linux Kernel up to 2.6.11 sys_epoll_wait memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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3.9$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 2.6.11. It has been classified as critical. This vulnerability affects the function sys_epoll_wait. This manipulation causes memory corruption. The identification of this vulnerability is CVE-2005-0736. The attack needs to be done within the local network. Furthermore, there is an exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as problematic was found in Linux Kernel up to 2.6.11 (Operating System). Affected by this vulnerability is the function sys_epoll_wait. 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 integrity. The summary by CVE is:

Integer overflow in sys_epoll_wait in eventpoll.c for Linux kernel 2.6 to 2.6.11 allows local users to overwrite kernel memory via a large number of events.

The bug was discovered 03/15/2005. The weakness was shared 03/15/2005 by Georgi Guninski (Website). It is possible to read the advisory at kernel.org. This vulnerability is known as CVE-2005-0736 since 03/12/2005. Access to the local network is required for this attack. The exploitation doesn't need any form of authentication. Technical details and also a public exploit are known.

A public exploit has been developed in ANSI C and been published before and not just after the advisory. It is possible to download the exploit at securityfocus.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 447 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 21923 (CentOS 3 : kernel (CESA-2005:293)), 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 117967 (CentOS Security Update for Kernel (CESA-2005:293)).

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at kernel.org. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published 2 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (19701), Exploit-DB (1397), Tenable (21923), SecurityFocus (BID 12763†) and OSVDB (14777†). The entries VDB-947, VDB-945, VDB-946 and VDB-944 are related to this item. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 3.9

VulDB Base Score: 4.3
VulDB Temp Score: 3.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 21923
Nessus Name: CentOS 3 : kernel (CESA-2005:293)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: kernel.org

Timelineinfo

12/18/2003 🔍
03/09/2005 +447 days 🔍
03/09/2005 +0 days 🔍
03/09/2005 +0 days 🔍
03/09/2005 +0 days 🔍
03/12/2005 +3 days 🔍
03/15/2005 +3 days 🔍
03/15/2005 +0 days 🔍
03/15/2005 +0 days 🔍
03/15/2005 +0 days 🔍
03/21/2005 +5 days 🔍
04/22/2005 +32 days 🔍
05/04/2005 +12 days 🔍
07/05/2006 +427 days 🔍
12/30/2024 +6753 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: kernel.org
Researcher: Georgi Guninski
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2005-0736 (🔍)
GCVE (CVE): GCVE-0-2005-0736
GCVE (VulDB): GCVE-100-1279

OVAL: 🔍

X-Force: 19701
SecurityFocus: 12763 - Linux Kernel SYS_EPoll_Wait Local Integer Overflow Vulnerability
Secunia: 14548 - Linux Kernel "sys_epoll_wait()" Function Integer Overflow, Not Critical
OSVDB: 14777 - Linux Kernel sys_epoll_wait() Function Local Overflow
Vulnerability Center: 7768 - Integer Overflow in Linux Kernel 2.6 - 2.6.11 sys_epoll_wait Function, Medium

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 03/21/2005 11:11
Updated: 12/30/2024 06:19
Changes: 03/21/2005 11:11 (97), 07/01/2019 17:49 (3), 12/30/2024 06:19 (18)
Complete: 🔍
Cache ID: 216::103

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