CVE-2015-8844

MITRE NVD CVE.ORG JSON API Print: PDF PDF

Summary

CVECVE-2015-8844
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2016-04-27 17:59:04 UTC
Updated2026-05-06 22:30:45 UTC
DescriptionThe signal implementation in the Linux kernel before 4.3.5 on powerpc platforms does not check for an MSR with both the S and T bits set, which allows local users to cause a denial of service (TM Bad Thing exception and panic) via a crafted application.

Risk And Classification

Primary CVSS: v3.0 5.5 MEDIUM from [email protected]

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Problem Types: CWE-20 | n/a

VersionSourceTypeScoreSeverityVector
3.0[email protected]Primary5.5MEDIUMCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
2.0[email protected]Primary4.7AV:L/AC:M/Au:N/C:N/I:N/A:C

CVSS v3.0 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CVSS v2.0 Breakdown

Access Vector
Local
Access Complexity
Medium
Authentication
None
Confidentiality
None
Integrity
None
Availability
Complete

AV:L/AC:M/Au:N/C:N/I:N/A:C

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.3.5 af854a3a-2127-422b-91ae-364da2661108 www.kernel.org
powerpc/tm: Block signal return setting invalid MSR state · torvalds/linux@d2b9d2a · GitHub af854a3a-2127-422b-91ae-364da2661108 github.com
kernel/git/torvalds/linux.git - Linux kernel source tree af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Vendor Advisory
Red Hat Customer Portal af854a3a-2127-422b-91ae-364da2661108 rhn.redhat.com
1326540 – (CVE-2015-8844, CVE-2015-8845) CVE-2015-8845 CVE-2015-8844 kernel: incorrect restoration of machine specific registers from userspace af854a3a-2127-422b-91ae-364da2661108 bugzilla.redhat.com
Linux Kernel powerpc Bugs Lets Local Users Cause Denial of Service Conditions on the Target System - SecurityTracker af854a3a-2127-422b-91ae-364da2661108 www.securitytracker.com
oss-security - CVE Request: Linux kernel: incorrect restoration of machine specific registers from signal handler. af854a3a-2127-422b-91ae-364da2661108 www.openwall.com
Red Hat Customer Portal af854a3a-2127-422b-91ae-364da2661108 rhn.redhat.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 671064 EulerOS Security Update for kernel (EulerOS-SA-2019-2599)
© CVE.report 2026 |

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report