Vulnerability CVE-2010-0306


Published: 2010-02-12   Modified: 2012-02-13

Description:
The x86 emulator in KVM 83, when a guest is configured for Symmetric Multiprocessing (SMP), does not use the Current Privilege Level (CPL) and I/O Privilege Level (IOPL) to restrict instruction execution, which allows guest OS users to cause a denial of service (guest OS crash) or gain privileges on the guest OS by leveraging access to a (1) IO port or (2) MMIO region, and replacing an instruction in between emulator entry and instruction fetch, a related issue to CVE-2010-0298.

Type:

CWE-264

(Permissions, Privileges, and Access Controls)

Vendor: Kvm qumranet
Product: KVM 
Version: 83;

CVSS2 => (AV:L/AC:M/Au:S/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.1/10
6.4/10
2.7/10
Exploit range
Attack complexity
Authentication
Local
Medium
Single time
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial

 References:
https://rhn.redhat.com/errata/RHSA-2010-0095.html
https://rhn.redhat.com/errata/RHSA-2010-0088.html
https://bugzilla.redhat.com/show_bug.cgi?id=560654
http://www.securityfocus.com/bid/38158
http://www.debian.org/security/2010/dsa-1996
http://secunia.com/advisories/38499
http://secunia.com/advisories/38492
http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:10953

Related CVE
CVE-2010-0419
The x86 emulator in KVM 83, when a guest is configured for Symmetric Multiprocessing (SMP), does not properly restrict writing of segment selectors to segment registers, which might allow guest OS users to cause a denial of service (guest OS crash) o...
CVE-2008-4539
Heap-based buffer overflow in the Cirrus VGA implementation in (1) KVM before kvm-82 and (2) QEMU on Debian GNU/Linux and Ubuntu might allow local users to gain privileges by using the VNC console for a connection, aka the LGD-54XX "bitblt" heap over...
CVE-2008-2382
The protocol_client_msg function in vnc.c in the VNC server in (1) Qemu 0.9.1 and earlier and (2) KVM kvm-79 and earlier allows remote attackers to cause a denial of service (infinite loop) via a certain message.

Copyright 2019, cxsecurity.com

 

Back to Top