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[email protected]CVE-2018-1091

HistoryMar 27, 2018 - 9:29 p.m.

CVE-2018-1091

2018-03-2721:29:00

CWE-391

CWE-119

[email protected]

web.nvd.nist.gov

109

linux kernel

cve-2018-1091

denial of service

security vulnerability

nvd

processor feature check

transactional memory

4.9 Medium

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

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

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

5.7 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

26.7%

JSON

In the flush_tmregs_to_thread function in arch/powerpc/kernel/ptrace.c in the Linux kernel before 4.13.5, a guest kernel crash can be triggered from unprivileged userspace during a core dump on a POWER host due to a missing processor feature check and an erroneous use of transactional memory ™ instructions in the core dump path, leading to a denial of service.

Affected configurations

Vulners

NVD

Node

linuxlinux_kernelRange4.13≥

VendorProductVersionCPE
linuxlinux_kernel*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
linux	linux_kernel	*	cpe:2.3:o:linux:linux_kernel::::::::

CNA Affected

[
  {
    "product": "Linux kernel v4.13 and newer",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "Linux kernel v4.13 and newer"
      }
    ]
  }
]