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Vulnerability Details : CVE-2012-2625

The PyGrub boot loader in Xen unstable before changeset 25589:60f09d1ab1fe, 4.2.x, and 4.1.x allows local para-virtualized guest users to cause a denial of service (memory consumption) via a large (1) bzip2 or (2) lzma compressed kernel image.
Publish Date : 2012-10-31 Last Update Date : 2018-04-13
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- CVSS Scores & Vulnerability Types

CVSS Score
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Single system (The vulnerability requires an attacker to be logged into the system (such as at a command line or via a desktop session or web interface).)
Gained Access None
Vulnerability Type(s) Denial Of Service

- Additional Vendor Supplied Data

Vendor Impact CVSS Score CVSS Vector Report Date Publish Date
Redhat moderate
AV:A/AC:L/Au:S/C:N/I:N/A:P 2012-05-02 2012-05-04
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- Related OVAL Definitions

Title Definition Id Class Family
DEPRECATED: ELSA-2012-1130 -- xen security update (moderate) oval:org.mitre.oval:def:27844 unix
ELSA-2012:1130: xen security update (Moderate) oval:org.mitre.oval:def:23412 unix
RHSA-2012:1130: xen security update (Moderate) oval:org.mitre.oval:def:21551 unix
RHSA-2012:1130: xen security update (Moderate) oval:com.redhat.rhsa:def:20121130 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2012-2625

# Product Type Vendor Product Version Update Edition Language
1 OS XEN XEN 4.1.0 Version Details Vulnerabilities
2 OS XEN XEN 4.1.1 Version Details Vulnerabilities
3 OS XEN XEN 4.1.2 Version Details Vulnerabilities
4 OS XEN XEN 4.1.3 Version Details Vulnerabilities
5 OS XEN XEN 4.2.0 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions

- References For CVE-2012-2625
SUSE SUSE-SU-2012:1043
BID 53650 Xen PyGrub Kernel Decompression Local Denial Of Service Vulnerability Release Date:2012-11-26
SECTRACK 1027090
SUSE openSUSE-SU-2012:1573
MLIST [oss-security] 20121026 Xen Security Advisory 25 (CVE-2012-4544) - Xen domain builder Out-of-memory due to malicious kernel/ramdisk
REDHAT RHSA-2012:1130
SUSE openSUSE-SU-2012:1572
SUSE openSUSE-SU-2012:1174
SUSE openSUSE-SU-2012:1172
SUSE SUSE-SU-2012:1044

- Metasploit Modules Related To CVE-2012-2625

There are not any metasploit modules related to this CVE entry (Please visit for more information)

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