Resource management errors in Linux kernel



| Updated: 2024-06-20
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2009-1046
CWE-ID CWE-399
Exploitation vector Local
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
 Linux kernel
Operating systems & Components / Operating system

Vendor Linux Foundation

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Resource management errors

EUVDB-ID: #VU92843

Risk: Low

CVSSv4.0: 5.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2009-1046

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: Yes

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The console selection feature in the Linux kernel 2.6.28 before 2.6.28.4, 2.6.25, and possibly earlier versions, when the UTF-8 console is used, allows physically proximate attackers to cause a denial of service (memory corruption) by selecting a small number of 3-byte UTF-8 characters, which triggers an 'off-by-two memory error.' NOTE: it is not clear whether this issue crosses privilege boundaries.

Mitigation

Install update from vendor's repository.

Vulnerable software versions

Linux kernel: All versions

CPE2.3 External links

https://lists.openwall.net/linux-kernel/2009/01/30/333
https://lists.openwall.net/linux-kernel/2009/02/02/364
https://secunia.com/advisories/34917
https://secunia.com/advisories/34981
https://secunia.com/advisories/35121
https://www.debian.org/security/2009/dsa-1787
https://www.debian.org/security/2009/dsa-1800
https://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.28.4
https://www.openwall.com/lists/oss-security/2009/02/12/10
https://www.openwall.com/lists/oss-security/2009/02/12/11
https://www.openwall.com/lists/oss-security/2009/02/12/9
https://www.redhat.com/support/errata/RHSA-2009-0451.html
https://www.securityfocus.com/bid/33672
https://www.ubuntu.com/usn/usn-751-1


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.



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