Arch Linux update for linux-lts



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2017-2583
CWE-ID CWE-264
Exploitation vector Local network
Public exploit N/A
Vulnerable software
 Arch Linux
Operating systems & Components / Operating system

Vendor Arch Linux

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Denial of service

EUVDB-ID: #VU5183

Risk: Low

CVSSv4.0: 4.6 [CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-2583

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows an adjacent attacker to cause DoS condition.

The weakness exists due to improper emulation of "MOV SS, NULL selector" instruction by the load_segment_descriptor implementation in arch/x86/kvm/emulate.c in the Linux kernel. A quest OS user can use a specially crafted and cause the system to crash.

Successful exploitation of the vulnerability results in denial of service.

Mitigation

Update the affected package linux-lts to version 4.4.44-1.

Vulnerable software versions

Arch Linux: All versions

CPE2.3 External links

https://security.archlinux.org/advisory/ASA-201701-35


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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