Input validation error in Linux kernel



| Updated: 2020-08-10
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2014-3645
CWE-ID CWE-20
Exploitation vector Network
Public exploit N/A
Vulnerable software
 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: #VU41142

Risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2014-3645

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

arch/x86/kvm/vmx.c in the KVM subsystem in the Linux kernel before 3.12 does not have an exit handler for the INVEPT instruction, which allows guest OS users to cause a denial of service (guest OS crash) via a crafted application.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: 3.0 - 3.11.6

CPE2.3 External links

https://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=bfd0a56b90005f8c8a004baf407ad90045c2b11e
https://rhn.redhat.com/errata/RHSA-2015-0126.html
https://rhn.redhat.com/errata/RHSA-2015-0284.html
https://www.debian.org/security/2014/dsa-3060
https://www.openwall.com/lists/oss-security/2014/10/24/9
https://www.ubuntu.com/usn/USN-2417-1
https://www.ubuntu.com/usn/USN-2418-1
https://bugzilla.redhat.com/show_bug.cgi?id=1144835
https://github.com/torvalds/linux/commit/bfd0a56b90005f8c8a004baf407ad90045c2b11e


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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



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