VulnerabilityModified
CVE-2011-2519
Xen in the Linux kernel, when running a guest on a host without hardware assisted paging (HAP), allows guest users to cause a denial of service (invalid pointer dereference and hypervisor crash) via the SAHF instruction.
MEDIUM 5.5EPSS 0.67%
Does this matter?
Lower severity and a low EPSS score (0.67%). Track it; it rarely justifies an emergency change on its own.
Description
Xen in the Linux kernel, when running a guest on a host without hardware assisted paging (HAP), allows guest users to cause a denial of service (invalid pointer dereference and hypervisor crash) via the SAHF instruction.
- CVSS 2.0
- 5.5 MEDIUMAV:A/AC:L/Au:S/C:N/I:N/A:C
- EPSS
- 0.67% probability · 50th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- xen/xen · redhat/enterprise linux desktop · redhat/enterprise linux server · redhat/enterprise linux workstation
- Source
- secalert@redhat.com
References
- http://rhn.redhat.com/errata/RHSA-2011-1212.htmlThird Party Advisory
- http://www.openwall.com/lists/oss-security/2011/08/30/1Mailing List, Third Party Advisory
- http://xenbits.xen.org/hg/xen-3.1-testing.hg/rev/15644Patch, Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=718882Issue Tracking, Third Party Advisory
- http://rhn.redhat.com/errata/RHSA-2011-1212.htmlThird Party Advisory
- http://www.openwall.com/lists/oss-security/2011/08/30/1Mailing List, Third Party Advisory
- http://xenbits.xen.org/hg/xen-3.1-testing.hg/rev/15644Patch, Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=718882Issue Tracking, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.