Integer underflow in Linux kernel

1) Integer underflow

EUVDB-ID: #VU100009

Risk: Low

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

CVE-ID: CVE-2001-0316

CWE-ID: CWE-191 - Integer underflow

Exploit availability: Yes

Description

The vulnerability allows a local user to read and manipulate data.

Linux kernel 2.4 and 2.2 allows local users to read kernel memory and possibly gain privileges via a negative argument to the sysctl call.

Mitigation

Install update from vendor's repository.

Vulnerable software versions

Linux kernel: All versions

CPE2.3

• cpe:2.3:o:linux_foundation:linux_kernel:*:*:*:*:*:*:*:*

External links

https://archives.neohapsis.com/archives/bugtraq/2001-02/0267.html
https://www.caldera.com/support/security/advisories/CSSA-2001-009.0.txt
https://www.osvdb.org/6017
https://www.redhat.com/support/errata/RHSA-2001-013.html
https://www.securityfocus.com/bid/2364
https://exchange.xforce.ibmcloud.com/vulnerabilities/6079

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.