CVE-2017-18221
published 2018-03-07CVE-2017-18221: The __munlock_pagevec function in mm/mlock.c in the Linux kernel before 4.11.4 allows local users to cause a denial of service (NR_MLOCK accounting corruption)…
PriorityP419medium5.5CVSS 3.0
AVLACLPRLUINSUCNINAH
EPSS
0.46%
37.7th percentile
The __munlock_pagevec function in mm/mlock.c in the Linux kernel before 4.11.4 allows local users to cause a denial of service (NR_MLOCK accounting corruption) via crafted use of mlockall and munlockall system calls.
Affected
7 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 4.11.6-1 (bookworm) | linux 4.11.6-1 (bookworm) |
| linux | linux_kernel | < 4.11.4 | 4.11.4 |
| linux | linux_kernel | >= 0 < 4.11.6-1 | 4.11.6-1 |
| linux | linux_kernel | >= 0 < 4.11.6-1 | 4.11.6-1 |
| linux | linux_kernel | >= 0 < 4.11.6-1 | 4.11.6-1 |
| linux | linux_kernel | >= 0 < 4.11.6-1 | 4.11.6-1 |
| linux | linux_kernel | >= 0 < 3.13.0-149.199 | 3.13.0-149.199 |
CVSS provenance
nvdv3.05.5MEDIUMCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
nvdv2.04.9MEDIUMAV:L/AC:L/Au:N/C:N/I:N/A:C
osv8.8HIGH
vendor_ubuntu8.8HIGH
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
GHSA
GHSA-286w-m7xc-q3hr: The __munlock_pagevec function in mm/mlock
ghsa_unreviewed·2022-05-14
CVE-2017-18221 [MEDIUM] CWE-20 GHSA-286w-m7xc-q3hr: The __munlock_pagevec function in mm/mlock
The __munlock_pagevec function in mm/mlock.c in the Linux kernel before 4.11.4 allows local users to cause a denial of service (NR_MLOCK accounting corruption) via crafted use of mlockall and munlockall system calls.
OSV
linux vulnerabilities
osv·2018-05-22·CVSS 8.8
CVE-2018-3639 [HIGH] linux vulnerabilities
linux vulnerabilities
Jann Horn and Ken Johnson discovered that microprocessors utilizing
speculative execution of a memory read may allow unauthorized memory
reads via a sidechannel attack. This flaw is known as Spectre
Variant 4. A local attacker could use this to expose sensitive
information, including kernel memory. (CVE-2018-3639)
Jan H. Schönherr discovered that the Xen subsystem did not properly handle
block IO merges correctly in some situations. An attacker in a guest vm
could use this to cause a denial of service (host crash) or possibly gain
administrative privileges in the host. (CVE-2017-12134)
It was discovered that the Bluetooth HIP Protocol implementation in the
Linux kernel did not properly validate HID connection setup information. An
attacker could use this to cause a
OSV
CVE-2017-18221: The __munlock_pagevec function in mm/mlock
osv·2018-03-07·CVSS 5.5
CVE-2017-18221 [MEDIUM] CVE-2017-18221: The __munlock_pagevec function in mm/mlock
The __munlock_pagevec function in mm/mlock.c in the Linux kernel before 4.11.4 allows local users to cause a denial of service (NR_MLOCK accounting corruption) via crafted use of mlockall and munlockall system calls.
Ubuntu
Linux kernel (Trusty HWE) vulnerabilities
vendor_ubuntu·2018-05-22·CVSS 8.8
CVE-2017-12134 [HIGH] Linux kernel (Trusty HWE) vulnerabilities
Title: Linux kernel (Trusty HWE) vulnerabilities
Summary: Several security issues were addressed in the Linux kernel.
USN-3655-1 fixed vulnerabilities and added mitigations in the Linux
kernel for Ubuntu 14.04 LTS. This update provides the corresponding
updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu
14.04 LTS for Ubuntu 12.04 ESM.
Jann Horn and Ken Johnson discovered that microprocessors utilizing
speculative execution of a memory read may allow unauthorized memory
reads via a sidechannel attack. This flaw is known as Spectre
Variant 4. A local attacker could use this to expose sensitive
information, including kernel memory. (CVE-2018-3639)
Jan H. Schönherr discovered that the Xen subsystem did not properly handle
block IO merges correctly in some situations. An att
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2018-05-22·CVSS 8.8
CVE-2017-12134 [HIGH] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were addressed in the Linux kernel.
Jann Horn and Ken Johnson discovered that microprocessors utilizing
speculative execution of a memory read may allow unauthorized memory
reads via a sidechannel attack. This flaw is known as Spectre
Variant 4. A local attacker could use this to expose sensitive
information, including kernel memory. (CVE-2018-3639)
Jan H. Schönherr discovered that the Xen subsystem did not properly handle
block IO merges correctly in some situations. An attacker in a guest vm
could use this to cause a denial of service (host crash) or possibly gain
administrative privileges in the host. (CVE-2017-12134)
It was discovered that the Bluetooth HIP Protocol implementation in the
Linux kernel did not prope
Red Hat
kernel: Race condition in __munlock_pagevec function in mm/mlock.c
vendor_redhat·2018-03-07·CVSS 5.5
CVE-2017-18221 [MEDIUM] CWE-119 kernel: Race condition in __munlock_pagevec function in mm/mlock.c
kernel: Race condition in __munlock_pagevec function in mm/mlock.c
The __munlock_pagevec function in mm/mlock.c in the Linux kernel before 4.11.4 allows local users to cause a denial of service (NR_MLOCK accounting corruption) via crafted use of mlockall and munlockall system calls.
The __munlock_pagevec function in mm/mlock.c in the Linux kernel, before 4.11.4, allows local users to cause a denial of service (NR_MLOCK accounting corruption) via crafted use of mlockall and munlockall system calls.
Package: kernel (Red Hat Enterprise Linux 5) - Not affected
Package: kernel (Red Hat Enterprise Linux 6) - Not affected
Package: kernel (Red Hat Enterprise Linux 7) - Not affected
Package: kernel-alt (Red Hat Enterprise Linux 7) - Affected
Package: kernel-rt (Red Hat Enterprise Linux 7) -
Debian
CVE-2017-18221: linux - The __munlock_pagevec function in mm/mlock.c in the Linux kernel before 4.11.4 a...
vendor_debian·2017·CVSS 5.5
CVE-2017-18221 [MEDIUM] CVE-2017-18221: linux - The __munlock_pagevec function in mm/mlock.c in the Linux kernel before 4.11.4 a...
The __munlock_pagevec function in mm/mlock.c in the Linux kernel before 4.11.4 allows local users to cause a denial of service (NR_MLOCK accounting corruption) via crafted use of mlockall and munlockall system calls.
Scope: local
bookworm: resolved (fixed in 4.11.6-1)
bullseye: resolved (fixed in 4.11.6-1)
forky: resolved (fixed in 4.11.6-1)
sid: resolved (fixed in 4.11.6-1)
trixie: resolved (fixed in 4.11.6-1)
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2017-18221 kernel: Race condition in __munlock_pagevec function in mm/mlock.c [fedora-all]
bugzilla·2018-03-07·CVSS 5.5
CVE-2017-18221 [MEDIUM] CVE-2017-18221 kernel: Race condition in __munlock_pagevec function in mm/mlock.c [fedora-all]
CVE-2017-18221 kernel: Race condition in __munlock_pagevec function in mm/mlock.c [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple s
Bugzilla
CVE-2017-18221 kernel: Race condition in __munlock_pagevec function in mm/mlock.c
bugzilla·2018-03-07·CVSS 5.5
CVE-2017-18221 [MEDIUM] CVE-2017-18221 kernel: Race condition in __munlock_pagevec function in mm/mlock.c
CVE-2017-18221 kernel: Race condition in __munlock_pagevec function in mm/mlock.c
The __munlock_pagevec function in mm/mlock.c in the Linux kernel before 4.11.4 allows local users to cause a denial of service (NR_MLOCK accounting corruption) via crafted use of mlockall and munlockall system calls.
References:
https://marc.info/?t=149567877900001&r=1&w=2
https://marc.info/?t=149569651900001&r=1&w=2
An upsteam patch:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=70feee0e1ef331b22cc51f383d532a0d043fbdcc
Discussion:
Created kernel tracking bugs for this issue:
Affects: fedora-all [bug 1552856]
---
This was fixed for Fedora with the 4.11.4 stable updates.
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=70feee0e1ef331b22cc51f383d532a0d043fbdcchttp://www.securityfocus.com/bid/103321https://github.com/torvalds/linux/commit/70feee0e1ef331b22cc51f383d532a0d043fbdcchttps://usn.ubuntu.com/3655-1/https://usn.ubuntu.com/3655-2/https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.11.4http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=70feee0e1ef331b22cc51f383d532a0d043fbdcchttp://www.securityfocus.com/bid/103321https://github.com/torvalds/linux/commit/70feee0e1ef331b22cc51f383d532a0d043fbdcchttps://usn.ubuntu.com/3655-1/https://usn.ubuntu.com/3655-2/https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.11.4
2018-03-07
Published