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ubuntucveUbuntu.comUB:CVE-2019-11599
HistoryApr 29, 2019 - 12:00 a.m.

CVE-2019-11599

2019-04-2900:00:00
ubuntu.com
ubuntu.com
29

7 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

6.9 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

0.001 Low

EPSS

Percentile

20.5%

The coredump implementation in the Linux kernel before 5.0.10 does not use
locking or other mechanisms to prevent vma layout or vma flags changes
while it runs, which allows local users to obtain sensitive information,
cause a denial of service, or possibly have unspecified other impact by
triggering a race condition with mmget_not_zero or get_task_mm calls. This
is related to fs/userfaultfd.c, mm/mmap.c, fs/proc/task_mmu.c, and
drivers/infiniband/core/uverbs_main.c.

Bugs

Notes

Author Note
tyhicks While the upstream commit has a Fixes tag that suggests the flaw was introduced in v4.3, the commit message makes it clear that the issue exists since before the kernel was stored in git.
OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchlinux< 4.15.0-60.67UNKNOWN
ubuntu19.04noarchlinux< 5.0.0-21.22UNKNOWN
ubuntu16.04noarchlinux< 4.4.0-159.187UNKNOWN
ubuntu18.04noarchlinux-aws< 4.15.0-1047.49UNKNOWN
ubuntu19.04noarchlinux-aws< 5.0.0-1011.12UNKNOWN
ubuntu16.04noarchlinux-aws< 4.4.0-1090.101UNKNOWN
ubuntu16.04noarchlinux-aws-hwe< 4.15.0-1047.49~16.04.1UNKNOWN
ubuntu18.04noarchlinux-azure< 5.0.0-1014.14~18.04.1UNKNOWN
ubuntu19.04noarchlinux-azure< 5.0.0-1012.12UNKNOWN
ubuntu16.04noarchlinux-azure< 4.15.0-1056.61UNKNOWN
Rows per page:
1-10 of 361

7 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

6.9 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

0.001 Low

EPSS

Percentile

20.5%