Linux Kernel up to 2.4.23 mremap privileges management

CVSS Meta Temp Score
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CTI Interest Score
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6.8$0-$5k0.00

Summaryinfo

A vulnerability has been found in Linux Kernel and classified as critical. This vulnerability affects the function mremap. Performing a manipulation results in privileges management. This vulnerability is known as CVE-2003-0985. Access to the local network is required for this attack. Furthermore, an exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Linux Kernel (Operating System). It has been classified as critical. This affects the function mremap. The manipulation with an unknown input leads to a privileges management vulnerability. CWE is classifying the issue as CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

The mremap system call (do_mremap) in Linux kernel 2.4.x before 2.4.21, and possibly other versions before 2.4.24, does not properly perform bounds checks, which allows local users to cause a denial of service and possibly gain privileges by causing a remapping of a virtual memory area (VMA) to create a zero length VMA, a different vulnerability than CAN-2004-0077.

The bug was discovered 01/05/2004. The weakness was published 01/05/2004 by Paul Starzetz and Wojciech Purczynski with isec (Website). The advisory is shared at isec.pl. This vulnerability is uniquely identified as CVE-2003-0985. The attack needs to be done within the local network. No form of authentication is needed for exploitation. Technical details and a public exploit are known. MITRE ATT&CK project uses the attack technique T1068 for this issue.

The exploit is shared for download at lists.netsys.com. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 18786 (Slackware 8.1 : Slackware 8.1 kernel security update (SSA:2004-008-01)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Slackware Local Security Checks and running in the context l.

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 1 days after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (14135), Exploit-DB (141), Tenable (18786), SecurityFocus (BID 9356†) and OSVDB (3315†). Further details are available at rhn.redhat.com. Similar entry is available at VDB-466. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 6.8

VulDB Base Score: 7.6
VulDB Temp Score: 6.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Privileges management
CWE: CWE-269 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 18786
Nessus Name: Slackware 8.1 : Slackware 8.1 kernel security update (SSA:2004-008-01)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 56784
OpenVAS Name: Debian Security Advisory DSA 1067-1 (kernel 2.4.16)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Patch: kernel.org

Timelineinfo

01/05/2004 🔍
01/05/2004 +0 days 🔍
01/05/2004 +0 days 🔍
01/05/2004 +0 days 🔍
01/05/2004 +0 days 🔍
01/06/2004 +0 days 🔍
01/06/2004 +0 days 🔍
01/15/2004 +9 days 🔍
01/20/2004 +5 days 🔍
07/13/2005 +540 days 🔍
07/25/2005 +12 days 🔍
12/26/2024 +7094 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: isec.pl
Researcher: Paul Starzetz, Wojciech Purczynski
Organization: isec
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2003-0985 (🔍)
GCVE (CVE): GCVE-0-2003-0985
GCVE (VulDB): GCVE-100-465

OVAL: 🔍

CERT: 🔍
X-Force: 14135 - Linux kernel do_mremap allows elevated privileges, High Risk
SecurityFocus: 9356 - Linux Kernel do_mremap Function Boundary Condition Vulnerability
Secunia: 10532 - Linux Kernel "mremap()" Privilege Escalation Vulnerability, Less Critical
OSVDB: 3315 - Linux Kernel do_mremap() Privilege Escalation
SecuriTeam: securiteam.com
Vulnerability Center: 8645 - DoS in Linux Kernel 2.4, 2.6 via Mremap System Call, Medium

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

Entryinfo

Created: 01/06/2004 14:13
Updated: 12/26/2024 20:26
Changes: 01/06/2004 14:13 (105), 06/27/2019 15:17 (1), 11/08/2024 08:45 (17), 12/26/2024 20:26 (1)
Complete: 🔍
Committer: olku
Cache ID: 216:8B8:103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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