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CVE-2019-11487

Good to know:

Date: April 23, 2019

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.

Language: C

Severity Score

7.8

Related Resources (35)

Url: http://www.openwall.com/lists/oss-security/2019/04/29/1

Url: https://www.oracle.com/security-alerts/cpuApr2021.html

Url: https://github.com/torvalds/linux/commit/88b1a17dfc3ed7728316478fae0f5ad508f50397

Url: http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00039.html

Url: https://access.redhat.com/errata/RHSA-2019:2741

Url: https://access.redhat.com/errata/RHSA-2020:0174

Url: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f958d7b528b1b40c44cfda5eabe2d82760d868c3

Url: https://github.com/torvalds/linux/commit/6b3a707736301c2128ca85ce85fb13f60b5e350a

Url: https://github.com/torvalds/linux/commit/f958d7b528b1b40c44cfda5eabe2d82760d868c3

Url: https://people.canonical.com/~ubuntu-security/cve/CVE-2019-11487

Url: http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00048.html

Url: https://usn.ubuntu.com/4069-2/

Url: https://github.com/torvalds/linux/commit/15fab63e1e57be9fdb5eec1bbc5916e9825e9acb

Url: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8fde12ca79aff9b5ba951fce1a2641901b8d8e64

Url: https://lwn.net/Articles/786044/

Url: https://lists.debian.org/debian-lts-announce/2019/09/msg00014.html

Url: https://access.redhat.com/security/cve/CVE-2019-11487

Url: https://usn.ubuntu.com/4118-1/

Url: https://nvd.nist.gov/vuln/detail/CVE-2019-11487

Url: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=15fab63e1e57be9fdb5eec1bbc5916e9825e9acb

Url: https://usn.ubuntu.com/4145-1/

Url: http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00040.html

Url: https://support.f5.com/csp/article/K14255532

Url: https://security.netapp.com/advisory/ntap-20190517-0005/

Url: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=88b1a17dfc3ed7728316478fae0f5ad508f50397

Url: https://security-tracker.debian.org/tracker/CVE-2019-11487

Url: http://www.securityfocus.com/bid/108054

Url: https://bugs.chromium.org/p/project-zero/issues/detail?id=1752

Url: https://lists.debian.org/debian-lts-announce/2019/09/msg00015.html

Url: https://usn.ubuntu.com/4069-1/

Url: https://access.redhat.com/errata/RHSA-2019:2703

Url: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6b3a707736301c2128ca85ce85fb13f60b5e350a

Url: https://github.com/torvalds/linux/commit/8fde12ca79aff9b5ba951fce1a2641901b8d8e64

Url: https://usn.ubuntu.com/4115-1/

Url: https://www.mend.io/vulnerability-database/CVE-2019-11487

Severity Score

7.8

Weakness Type (CWE)

Use After Free

CWE-416

Top Fix

Upgrade Version

Upgrade to version v5.1-rc5

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CVSS v3.1

Base Score:	7.8
Attack Vector (AV):	LOCAL
Attack Complexity (AC):	LOW
Privileges Required (PR):	LOW
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	HIGH
Integrity (I):	HIGH
Availability (A):	HIGH

CVSS v2

Base Score:	7.2
Access Vector (AV):	LOCAL
Access Complexity (AC):	LOW
Authentication (AU):	NONE
Confidentiality (C):	COMPLETE
Integrity (I):	COMPLETE
Availability (A):	COMPLETE
Additional information:

Mend.io Vulnerability Database

We found results for “”

CVE-2019-11487

Good to know:

Date: April 23, 2019

Language: C

Severity Score

Related Resources (35)

Severity Score

Weakness Type (CWE)

Top Fix

Upgrade Version

CVSS v3.1

CVSS v2

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