CVE-2012-2121

MediumCVSS 4.9/10Last modified Jun 16, 2026

Description

The KVM implementation in the Linux kernel before 3.3.4 does not properly manage the relationships between memory slots and the iommu, which allows guest OS users to cause a denial of service (memory leak and host OS crash) by leveraging administrative access to the guest OS to conduct hotunplug and hotplug operations on devices.

Metrics

CVSS 2.0 4.9/10AV:L/AC:L/Au:N/C:N/I:N/A:C

Weakness enumeration

CWE-264

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

Timeline

Published: May 17, 2012
Last modified: Jun 16, 2026
NVD status: Modified

Related CVEs from 2012

CVE-2012-21225.1sql/password.c in Oracle MySQL 5.1.x before 5.1.63, 5.5.x before 5.5.24, and 5.6.x before 5.6.6, and MariaDB 5.1.x before 5.1.62, 5.2.x befo CVE-2012-21237.2The cap_bprm_set_creds function in security/commoncap.c in the Linux kernel before 3.3.3 does not properly handle the use of file system cap CVE-2012-21245.0functions/imap_general.php in SquirrelMail, as used in Red Hat Enterprise Linux (RHEL) 4 and 5, does not properly handle 8-bit characters in CVE-2012-21255.8RubyGems before 1.8.23 can redirect HTTPS connections to HTTP, which makes it easier for remote attackers to observe or modify a gem during CVE-2012-21264.3RubyGems before 1.8.23 does not verify an SSL certificate, which allows remote attackers to modify a gem during installation via a man-in-th CVE-2012-21275.0fs/proc/root.c in the procfs implementation in the Linux kernel before 3.2 does not properly interact with CLONE_NEWPID clone system calls, CVE-2012-21286.8Cross-site request forgery (CSRF) vulnerability in doku.php in DokuWiki 2012-01-25 Angua allows remote attackers to hijack the authenticatio CVE-2012-21294.3Cross-site scripting (XSS) vulnerability in doku.php in DokuWiki 2012-01-25 Angua allows remote attackers to inject arbitrary web script or CVE-2012-21307.4A Security Bypass vulnerability exists in PolarSSL 0.99pre4 through 1.1.1 due to a weak encryption error when generating Diffie-Hellman valu CVE-2012-21317.5Multiple integer signedness errors in crypto/buffer/buffer.c in OpenSSL 0.9.8v allow remote attackers to conduct buffer overflow attacks, an CVE-2012-21325.0libsoup 2.32.2 and earlier does not validate certificates or clear the trust flag when the ssl-ca-file does not exist, which allows remote a CVE-2012-21334.0Use-after-free vulnerability in the Linux kernel before 3.3.6, when huge pages are enabled, allows local users to cause a denial of service