CVE-2019-11487

HIGH
7.8
CVSS Score
Published: April 23, 2019 at 10:00 PM UTC
Updated: June 17, 2026 at 02:13 AM UTC
3 products affected across 3 vendorsLinux KernelDebian LinuxUbuntu Linux

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Severity
HIGH7.8
Exploit prediction
EPSS 0.7%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 4.4.2164.10 ≤ v < 4.14.1164.15 ≤ v < 4.19.394.20 ≤ v < 5.0.124.5 ≤ v < 4.9.1815.1 rc15.1 rc25.1 rc35.1 rc4
Affected range stops below 4.14.116, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.19.39, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.4.216, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.9.181, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.0.12, so it looks safe — our inference, not a vendor statement

References (30)

Vendor Advisoryx_refsource_SUSEMailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00039.html
Vendor Advisoryx_refsource_SUSEMailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00040.html
Vendor Advisoryx_refsource_SUSEMailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00048.html
Mailing Listx_refsource_MLISTThird Party Advisory
http://www.openwall.com/lists/oss-security/2019/04/29/1
VDB Entryx_refsource_BIDThird Party Advisory
http://www.securityfocus.com/bid/108054
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2019:2703
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2019:2741
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2020:0174

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-416

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