Linux Kernel up to 2.4.32-pre1/2.6.7 IA32 Compatibility execve memory corruption

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5.7$0-$5k0.00

A vulnerability was found in Linux Kernel up to 2.4.32-pre1/2.6.7 (Operating System). It has been rated as problematic. Affected by this issue is the function execve of the component IA32 Compatibility Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Race condition in the ia32 compatibility code for the execve system call in Linux kernel 2.4 before 2.4.31 and 2.6 before 2.6.6 allows local users to cause a denial of service (kernel panic) and possibly execute arbitrary code via a concurrent thread that increments a pointer count after the nargs function has counted the pointers, but before the count is copied from user space to kernel space, which leads to a buffer overflow.

The bug was discovered 07/11/2005. The weakness was disclosed 07/11/2005 by Ilja van Sprundel with Suresec (Website). The advisory is shared for download at kernel.org. This vulnerability is handled as CVE-2005-1768 since 05/31/2005. The attack needs to be done within the local network. No form of authentication is required for exploitation. There are known technical details, but no exploit is available.

It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 21849 (CentOS 3 : kernel (CESA-2005:663)), 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 117852 (CentOS Security Update for Kernel (CESA-2005:663)).

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 3 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (21314) and Tenable (21849). The entries 1105, 1106, 1104 and 1234 are pretty similar.

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: 6.3
VulDB Meta Temp Score: 5.7

VulDB Base Score: 6.3
VulDB Temp Score: 5.7
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: Partially

Availability: 🔍
Status: Proof-of-Concept

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EPSS Percentile: 🔍

Price Prediction: 🔍
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Nessus ID: 21849
Nessus Name: CentOS 3 : kernel (CESA-2005:663)
Nessus File: 🔍
Nessus Risk: 🔍
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Nessus Context: 🔍

OpenVAS ID: 56013
OpenVAS Name: Debian Security Advisory DSA 921-1 (kernel-source-2.4.27)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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Patch: kernel.org

Timelineinfo

05/31/2005 🔍
07/11/2005 +41 days 🔍
07/11/2005 +0 days 🔍
07/11/2005 +0 days 🔍
07/11/2005 +0 days 🔍
07/11/2005 +0 days 🔍
07/11/2005 +0 days 🔍
07/12/2005 +0 days 🔍
09/28/2005 +78 days 🔍
11/14/2005 +47 days 🔍
07/03/2006 +231 days 🔍
07/03/2019 +4748 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: kernel.org
Researcher: Ilja van Sprundel
Organization: Suresec
Status: Confirmed

CVE: CVE-2005-1768 (🔍)
OVAL: 🔍

X-Force: 21314
SecurityTracker: 1014442
Vulnerability Center: 9614 - Linux Kernel Local Privileges Escalation via Race Condition in ia32 Code for Execcve System, High
SecurityFocus: 14205 - Linux Kernel IA32 ExecVE Local Buffer Overflow Vulnerability
Secunia: 15980 - Linux Kernel IA32 Compatibility "execve()" Buffer Overflow, Less Critical
OSVDB: 17803 - Linux Kernel IA32 Compatibility execve() Function Local Overflow
Vupen: ADV-2005-1878

See also: 🔍

Entryinfo

Created: 07/12/2005 10:32
Updated: 07/03/2019 15:42
Changes: 07/12/2005 10:32 (92), 07/03/2019 15:42 (8)
Complete: 🔍

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