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CVE-2019-11487

CVE information

Published

4 years ago

Last Modified

1 year ago

CVSSv2.0 Severity

High

CVSSv3.1 Severity

High

Impact Analysis

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Description

The Linux kernel before 5.1-rc5 allows page->_refcount reference count overflow, with resultant use-after-free issues, if about 140 GiB of RAM exists. This is related to fs/fuse/dev.c, fs/pipe.c, fs/splice.c, include/linux/mm.h, include/linux/pipe_fs_i.h, kernel/trace/trace.c, mm/gup.c, and mm/hugetlb.c. It can occur with FUSE requests..

CVSSv2.0 Score

Severity
High
Base Score
7.2/10
Exploit Score
3.9/10
Access Vector
Local
Access Complexity
Low
Authentication Required
None
Impact Score
10/10
Confidentiality Impact
Complete
Availability Impact
Complete
Integrity Impact
Complete

CVSSv3.1 Score

Severity
High
Base Score
7.8/10
Exploit Score
1.8/10
Access Vector
Local
Access Complexity
Low
Privileges Required
Low
Impact Score
5.9/10
Confidentiality Impact
High
Availability Impact
High
Integrity Impact
High
Scope
Unchanged
User Interaction
None

Products Affected

CPE Affected Vulnerable Excluding Edit
cpe:2.3:o:linux:linux_kernel:5.1:rc2:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:linux:linux_kernel:5.1:rc3:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:linux:linux_kernel:5.1:rc4:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:linux:linux_kernel:5.1:rc1:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
  Yes
4.5 4.9.181
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
  Yes
- 4.4.216
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
  Yes
4.10 4.14.116
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
  Yes
4.15 4.19.39
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
  Yes
4.20 5.0.12
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
  Yes
- -
cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
  Yes
- -

References