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Vulnerability Intelligence

CVE-2019-11487

HIGH7.8

The Linux kernel before 5

Published Apr 23, 2019

Modified 1 years ago

No fix available

Details

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.

References

ADVISORYhttp://lists.opensuse.org/opensuse-security-announce/2019-06/msg00039.html ADVISORYhttp://lists.opensuse.org/opensuse-security-announce/2019-06/msg00040.html ADVISORYhttp://lists.opensuse.org/opensuse-security-announce/2019-06/msg00048.html WEBhttp://www.openwall.com/lists/oss-security/2019/04/29/1 WEBhttp://www.securityfocus.com/bid/108054 ADVISORYhttps://access.redhat.com/errata/RHSA-2019:2703 ADVISORYhttps://access.redhat.com/errata/RHSA-2019:2741 ADVISORYhttps://access.redhat.com/errata/RHSA-2020:0174 WEBhttps://bugs.chromium.org/p/project-zero/issues/detail?id=1752 WEBhttps://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=15fab63e1e57be9fdb5eec1bbc5916e9825e9acb WEBhttps://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6b3a707736301c2128ca85ce85fb13f60b5e350a WEBhttps://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=88b1a17dfc3ed7728316478fae0f5ad508f50397 WEBhttps://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8fde12ca79aff9b5ba951fce1a2641901b8d8e64 WEBhttps://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f958d7b528b1b40c44cfda5eabe2d82760d868c3 WEBhttps://github.com/torvalds/linux/commit/15fab63e1e57be9fdb5eec1bbc5916e9825e9acb WEBhttps://github.com/torvalds/linux/commit/6b3a707736301c2128ca85ce85fb13f60b5e350a WEBhttps://github.com/torvalds/linux/commit/88b1a17dfc3ed7728316478fae0f5ad508f50397 WEBhttps://github.com/torvalds/linux/commit/8fde12ca79aff9b5ba951fce1a2641901b8d8e64 WEBhttps://github.com/torvalds/linux/commit/f958d7b528b1b40c44cfda5eabe2d82760d868c3 WEBhttps://lists.debian.org/debian-lts-announce/2019/09/msg00014.html WEBhttps://lists.debian.org/debian-lts-announce/2019/09/msg00015.html WEBhttps://lwn.net/Articles/786044/WEBhttps://security.netapp.com/advisory/ntap-20190517-0005/WEBhttps://support.f5.com/csp/article/K14255532 ADVISORYhttps://usn.ubuntu.com/4069-1/ADVISORYhttps://usn.ubuntu.com/4069-2/ADVISORYhttps://usn.ubuntu.com/4115-1/ADVISORYhttps://usn.ubuntu.com/4118-1/ADVISORYhttps://usn.ubuntu.com/4145-1/ADVISORYhttps://www.cve.org/CVERecord?id=CVE-2019-11487 WEBhttps://www.oracle.com/security-alerts/cpuApr2021.html

CVSS Analysis

CVSS v3.1

7.8

Exploitability

Attack Vector

LocalAV:L

Attack Complexity

LowAC:L

Privileges Required

LowPR:L

User Interaction

NoneUI:N

Scope

Scope

UnchangedS:U

Impact

Confidentiality

HighC:H

Integrity

HighI:H

Availability

HighA:H

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

Ecosystems

Timeline

PublishedApr 23, 2019

ModifiedAug 4, 2024

CVE-2019-11487 | Mondoo Vulnerability Intelligence