#VU95578 Out-of-bounds read in Linux kernel - CVE-2006-5174

Cybersecurity Help s.r.o.

Published: 2006-10-10 | Updated: 2018-10-30

Vulnerability identifier: #VU95578

Vulnerability risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2006-5174

CWE-ID: CWE-125

Exploitation vector: Local

Exploit availability: No

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

Vendor: Linux Foundation

Description

The vulnerability allows a local user to gain access to sensitive information.

The copy_from_user function in the uaccess code in Linux kernel 2.6 before 2.6.19-rc1, when running on s390, does not properly clear a kernel buffer, which allows local user space programs to read portions of kernel memory by 'appending to a file from a bad address,' which triggers a fault that prevents the unused memory from being cleared in the kernel buffer. This vulnerability is addressed in the following product update: Linux, Linux kernel, 2.6.19 rc1

Mitigation
Install update from vendor's repository.

Vulnerable software versions

Linux kernel: All versions

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.

Latest bulletins with this vulnerability

Out-of-bounds read in Linux kernel