Upstream information

CVE-2015-3291 at MITRE

Description

arch/x86/entry/entry_64.S in the Linux kernel before 4.1.6 on the x86_64 platform does not properly determine when nested NMI processing is occurring, which allows local users to cause a denial of service (skipped NMI) by modifying the rsp register, issuing a syscall instruction, and triggering an NMI.

SUSE information

Overall state of this security issue: Pending

This issue is currently rated as having low severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 2.1
Vector AV:L/AC:L/Au:N/C:N/I:N/A:P
Access Vector Local
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial

Note from the SUSE Security Team

This problem existed since around Linux Kernel 3.3 and so does likely not affect SUSE Linux Enterprise 11 or older kernels. It also has minimal impact on the system, loss of NMIs can likely only affect the attacker itself. Due to difficulty of backport we do not plan to this minor issue.

SUSE Bugzilla entries: 937969 [RESOLVED / FIXED], 937970 [RESOLVED], 938706 [RESOLVED / FIXED]

No SUSE Security Announcements cross referenced.


Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification.

Product(s) Source package State
SUSE Linux Enterprise Desktop 11 SP3 kernel-source Affected
SUSE Linux Enterprise Desktop 11 SP4 kernel-source Affected
SUSE Linux Enterprise Desktop 12 GA kernel-source Affected
SUSE Linux Enterprise Server 11 SP3 kernel-source Affected
SUSE Linux Enterprise Server 11 SP4 kernel-source Affected
SUSE Linux Enterprise Server 12 GA kernel-source Affected
SUSE Linux Enterprise Server for VMWare 11 SP3 kernel-source Affected