Out-of-bounds read in Linux kernel

1) Out-of-bounds read

EUVDB-ID: #VU95653

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-2004-2607

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

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

A numeric casting discrepancy in sdla_xfer in Linux kernel 2.6.x up to 2.6.5 and 2.4 up to 2.4.29-rc1 allows local users to read portions of kernel memory via a large len argument, which is received as an int but cast to a short, which prevents a read loop from filling a buffer.

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://secunia.com/advisories/18977
https://secunia.com/advisories/19369
https://www.debian.org/security/2006/dsa-1018
https://www.mandriva.com/security/advisories?name=MDKSA-2006:072
https://www.securityfocus.com/bid/16759
https://www.uwsg.iu.edu/hypermail/linux/kernel/0404.2/0313.html
https://www.uwsg.iu.edu/hypermail/linux/kernel/0404.2/0743.html
https://wwwnew.mandriva.com/security/advisories?name=MDKSA-2006:044

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.