NULL pointer dereference in Novell Opensuse



| Updated: 2020-08-09
Risk Medium
Patch available NO
Number of vulnerabilities 1
CVE-ID CVE-2014-8594
CWE-ID CWE-476
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		Opensuse
Operating systems & Components / Operating system

Debian Linux
Operating systems & Components / Operating system

Xen
Server applications / Virtualization software

Vendor SUSE
Debian
Xen Project

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) NULL pointer dereference

EUVDB-ID: #VU41091

Risk: Medium

CVSSv3.1: 5.4 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:U/RC:C]

CVE-ID: CVE-2014-8594

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

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

The vulnerability exists due to a NULL pointer dereference error in arch/x86/mm.c in Xen 4.x through 4.4.x does not properly restrict updates to only PV page tables, which allows remote PV guests to cause a denial of service (NULL pointer dereference) by leveraging hardware emulation services for HVM guests using Hardware Assisted Paging (HAP). A remote attacker can perform a denial of service (DoS) attack.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

Opensuse: 13.1 - 13.2

Debian Linux: 7.0 - 13.2

Xen: 4.0.0 - 13.2

CPE2.3 External links

http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.html
http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00010.html
http://secunia.com/advisories/62672
http://www.debian.org/security/2015/dsa-3140
http://www.securityfocus.com/bid/71149
http://xenbits.xen.org/xsa/advisory-109.html
http://exchange.xforce.ibmcloud.com/vulnerabilities/98767
http://security.gentoo.org/glsa/201504-04


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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