#VU100007 Resource management errors in Linux kernel - CVE-2001-0907

Vulnerability identifier: #VU100007

Vulnerability risk: Low

CVSSv4.0: 1.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2001-0907

CWE-ID: CWE-399

Exploitation vector: Local

Exploit availability: Yes

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: Linux Foundation

Description

The vulnerability allows a local user to perform service disruption.

Linux kernel 2.2.1 through 2.2.19, and 2.4.1 through 2.4.10, allows local users to cause a denial of service via a series of deeply nested symlinks, which causes the kernel to spend extra time when trying to access the link.

Mitigation
Install update from vendor's repository.

Vulnerable software versions

Linux kernel: All versions

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External links
https:ftp://ftp.caldera.com/pub/security/OpenLinux/CSSA-2001-036.0.txt
https://download.immunix.org/ImmunixOS/7.0/updates/IMNX-2001-70-035-01
https://frontal2.mandriva.com/security/advisories?name=MDKSA-2001:079
https://marc.info/?l=bugtraq&m=100343090106914&w=2
https://marc.info/?l=bugtraq&m=100350685431610&w=2
https://www.iss.net/security_center/static/7312.php
https://www.linux-mandrake.com/en/security/2001/MDKSA-2001-082.php3
https://www.linuxsecurity.com/advisories/other_advisory-1650.html
https://www.novell.com/linux/security/advisories/2001_036_kernel_txt.html
https://www.securityfocus.com/bid/3444

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.