// For flags

CVE-2012-4535

kernel: xen: VCPU timer overflow leads to PCPU deadlock and host death-by-watchdog

Severity Score

1.9
*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Xen 3.4 through 4.2, and possibly earlier versions, allows local guest OS administrators to cause a denial of service (Xen infinite loop and physical CPU consumption) by setting a VCPU with an "inappropriate deadline."

Xen 3.4 hasta 4.2 y posiblemente versiones anteriores permite a los administradores de sistemas operativos clientes locales causar una denegación de servicio (bucle infinito en Xen y consumo de CPU física), configurando un VCPU con una "fecha límite inapropiada".

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Medium
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
Attack Vector
Adjacent
Attack Complexity
Low
Authentication
Single
Confidentiality
None
Integrity
None
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2012-08-21 CVE Reserved
  • 2012-11-21 CVE Published
  • 2023-03-08 EPSS Updated
  • 2024-08-06 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-399: Resource Management Errors
CAPEC
References (25)
URL Tag Source
http://osvdb.org/87298 Vdb Entry
http://secunia.com/advisories/51200 Third Party Advisory
http://secunia.com/advisories/51324 Third Party Advisory
http://secunia.com/advisories/51352 Third Party Advisory
http://secunia.com/advisories/51413 Third Party Advisory
http://secunia.com/advisories/51468 Third Party Advisory
http://secunia.com/advisories/55082 Third Party Advisory
http://www.openwall.com/lists/oss-security/2012/11/13/1 Mailing List
http://www.securityfocus.com/bid/56498 Vdb Entry
http://www.securitytracker.com/id?1027759 Vdb Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/80022 Vdb Entry
URL Date SRC
URL Date SRC
URL Date SRC
http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00008.html 2017-08-29
http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00009.html 2017-08-29
http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00017.html 2017-08-29
http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00018.html 2017-08-29
http://lists.opensuse.org/opensuse-security-announce/2012-12/msg00001.html 2017-08-29
http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html 2017-08-29
http://lists.opensuse.org/opensuse-security-announce/2014-04/msg00000.html 2017-08-29
http://lists.xen.org/archives/html/xen-announce/2012-11/msg00001.html 2017-08-29
http://rhn.redhat.com/errata/RHSA-2012-1540.html 2017-08-29
http://security.gentoo.org/glsa/glsa-201309-24.xml 2017-08-29
http://www.debian.org/security/2012/dsa-2582 2017-08-29
https://security.gentoo.org/glsa/201604-03 2017-08-29
https://access.redhat.com/security/cve/CVE-2012-4535 2012-12-04
https://bugzilla.redhat.com/show_bug.cgi?id=870086 2012-12-04
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Xen
Search vendor "Xen"
 Xen
Search vendor "Xen" for product "Xen"
 3.4.0
Search vendor "Xen" for product "Xen" and version "3.4.0"
-
Affected
Xen
Search vendor "Xen"
 Xen
Search vendor "Xen" for product "Xen"
 3.4.1
Search vendor "Xen" for product "Xen" and version "3.4.1"
-
Affected
Xen
Search vendor "Xen"
 Xen
Search vendor "Xen" for product "Xen"
 3.4.2
Search vendor "Xen" for product "Xen" and version "3.4.2"
-
Affected
Xen
Search vendor "Xen"
 Xen
Search vendor "Xen" for product "Xen"
 3.4.3
Search vendor "Xen" for product "Xen" and version "3.4.3"
-
Affected
Xen
Search vendor "Xen"
 Xen
Search vendor "Xen" for product "Xen"
 3.4.4
Search vendor "Xen" for product "Xen" and version "3.4.4"
-
Affected
Xen
Search vendor "Xen"
 Xen
Search vendor "Xen" for product "Xen"
 4.0.0
Search vendor "Xen" for product "Xen" and version "4.0.0"
-
Affected
Xen
Search vendor "Xen"
 Xen
Search vendor "Xen" for product "Xen"
 4.0.1
Search vendor "Xen" for product "Xen" and version "4.0.1"
-
Affected
Xen
Search vendor "Xen"
 Xen
Search vendor "Xen" for product "Xen"
 4.0.2
Search vendor "Xen" for product "Xen" and version "4.0.2"
-
Affected
Xen
Search vendor "Xen"
 Xen
Search vendor "Xen" for product "Xen"
 4.0.3
Search vendor "Xen" for product "Xen" and version "4.0.3"
-
Affected
Xen
Search vendor "Xen"
 Xen
Search vendor "Xen" for product "Xen"
 4.0.4
Search vendor "Xen" for product "Xen" and version "4.0.4"
-
Affected
Xen
Search vendor "Xen"
 Xen
Search vendor "Xen" for product "Xen"
 4.1.0
Search vendor "Xen" for product "Xen" and version "4.1.0"
-
Affected
Xen
Search vendor "Xen"
 Xen
Search vendor "Xen" for product "Xen"
 4.1.1
Search vendor "Xen" for product "Xen" and version "4.1.1"
-
Affected
Xen
Search vendor "Xen"
 Xen
Search vendor "Xen" for product "Xen"
 4.1.2
Search vendor "Xen" for product "Xen" and version "4.1.2"
-
Affected
Xen
Search vendor "Xen"
 Xen
Search vendor "Xen" for product "Xen"
 4.1.3
Search vendor "Xen" for product "Xen" and version "4.1.3"
-
Affected
Xen
Search vendor "Xen"
 Xen
Search vendor "Xen" for product "Xen"
 4.2.0
Search vendor "Xen" for product "Xen" and version "4.2.0"
-
Affected