Input validation error in Linux kernel



Published: 2013-03-22 | Updated: 2020-06-01
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2013-1798
CWE-ID CWE-20
Exploitation vector Local network
Public exploit N/A
Vulnerable software
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Linux kernel
Operating systems & Components / Operating system

Vendor Linux Foundation

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Input validation error

EUVDB-ID: #VU28410

Risk: Medium

CVSSv3.1: 5.9 [CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2013-1798

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

The ioapic_read_indirect function in virt/kvm/ioapic.c in the Linux kernel through 3.8.4 does not properly handle a certain combination of invalid IOAPIC_REG_SELECT and IOAPIC_REG_WINDOW operations, which allows guest OS users to obtain sensitive information from host OS memory or cause a denial of service (host OS OOPS) via a crafted application.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: 4.9 - 5.5.19

External links

http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.103
http://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.19
http://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.5.3
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.214
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.171
http://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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