CVE-2018-16884
published 2018-12-18CVE-2018-16884: A flaw was found in the Linux kernel's NFS41+ subsystem. NFS41+ shares mounted in different network namespaces at the same time can make bc_svc_process() use…
PriorityP341high8CVSS 3.1
AVAACLPRLUINSUCHIHAH
EPSS
1.46%
70.5th percentile
A flaw was found in the Linux kernel's NFS41+ subsystem. NFS41+ shares mounted in different network namespaces at the same time can make bc_svc_process() use wrong back-channel IDs and cause a use-after-free vulnerability. Thus a malicious container user can cause a host kernel memory corruption and a system panic. Due to the nature of the flaw, privilege escalation cannot be fully ruled out.
Affected
19 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| debian | debian_linux | — | — |
| debian | linux | < linux 4.19.16-1 (bookworm) | linux 4.19.16-1 (bookworm) |
| linux | linux_kernel | >= 0 < 4.19.16-1 | 4.19.16-1 |
| linux | linux_kernel | >= 0 < 4.19.16-1 | 4.19.16-1 |
| linux | linux_kernel | >= 0 < 4.19.16-1 | 4.19.16-1 |
| linux | linux_kernel | >= 0 < 4.19.16-1 | 4.19.16-1 |
| linux | linux_kernel | >= 0 < 4.4.0-145.171 | 4.4.0-145.171 |
| linux | linux_kernel | >= 0 < 4.15.0-50.54 | 4.15.0-50.54 |
| linux | linux_kernel | >= 3.17 < 3.18.133 | 3.18.133 |
| linux | linux_kernel | >= 3.19 < 4.4.171 | 4.4.171 |
| linux | linux_kernel | >= 3.7 < 3.16.65 | 3.16.65 |
| linux | linux_kernel | >= 4.10 < 4.14.94 | 4.14.94 |
| linux | linux_kernel | >= 4.15 < 4.19.16 | 4.19.16 |
| linux | linux_kernel | >= 4.20 < 4.20.3 | 4.20.3 |
| linux | linux_kernel | >= 4.5 < 4.9.151 | 4.9.151 |
| redhat | enterprise_linux | — | — |
| redhat | enterprise_mrg | — | — |
CVSS provenance
nvdv3.18.0HIGHCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvdv3.06.5MEDIUMCVSS:3.0/AV:A/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:H
nvdv2.06.7MEDIUMAV:A/AC:L/Au:S/C:P/I:P/A:C
osv8.0HIGH
vendor_debian8.0HIGH
vendor_redhat8.0HIGH
vendor_ubuntu7.0HIGH
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GHSA
GHSA-cxqg-5c27-qx45: A flaw was found in the Linux kernel's NFS41+ subsystem
ghsa_unreviewed·2022-05-13
CVE-2018-16884 [HIGH] CWE-416 GHSA-cxqg-5c27-qx45: A flaw was found in the Linux kernel's NFS41+ subsystem
A flaw was found in the Linux kernel's NFS41+ subsystem. NFS41+ shares mounted in different network namespaces at the same time can make bc_svc_process() use wrong back-channel IDs and cause a use-after-free vulnerability. Thus a malicious container user can cause a host kernel memory corruption and a system panic. Due to the nature of the flaw, privilege escalation cannot be fully ruled out.
OSV
linux-hwe, linux-azure, linux-gcp, linux-oracle vulnerabilities
osv·2019-05-15·CVSS 5.6
[MEDIUM] linux-hwe, linux-azure, linux-gcp, linux-oracle vulnerabilities
linux-hwe, linux-azure, linux-gcp, linux-oracle vulnerabilities
USN-3981-1 fixed vulnerabilities in the Linux kernel for Ubuntu 18.04
LTS. This update provides the corresponding updates for the Linux
Hardware Enablement (HWE) kernel from Ubuntu 18.04 LTS for Ubuntu
16.04 LTS and for the Linux Azure kernel for Ubuntu 14.04 LTS.
Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Giorgi Maisuradze, Dan
Horea Lutas, Andrei Lutas, Volodymyr Pikhur, Stephan van Schaik, Alyssa
Milburn, Sebastian Österlund, Pietro Frigo, Kaveh Razavi, Herbert Bos,
Cristiano Giuffrida, Moritz Lipp, Michael Schwarz, and Daniel Gruss
discovered that memory previously stored in microarchitectural fill buffers
of an Intel CPU core may be exposed to a malicious process that is
executing on the same CPU core. A local
OSV
linux-hwe, linux-azure vulnerabilities
osv·2019-05-14·CVSS 5.6
[MEDIUM] linux-hwe, linux-azure vulnerabilities
linux-hwe, linux-azure vulnerabilities
USN-3980-1 fixed vulnerabilities in the Linux kernel for Ubuntu 18.10.
This update provides the corresponding updates for the Linux
Hardware Enablement (HWE) kernel from Ubuntu 18.10 for Ubuntu
18.04 LTS.
Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Giorgi Maisuradze, Dan
Horea Lutas, Andrei Lutas, Volodymyr Pikhur, Stephan van Schaik, Alyssa
Milburn, Sebastian Österlund, Pietro Frigo, Kaveh Razavi, Herbert Bos,
Cristiano Giuffrida, Moritz Lipp, Michael Schwarz, and Daniel Gruss
discovered that memory previously stored in microarchitectural fill buffers
of an Intel CPU core may be exposed to a malicious process that is
executing on the same CPU core. A local attacker could use this to expose
sensitive information. (CVE-2018-12130)
Brandon F
OSV
linux, linux-aws, linux-gcp, linux-kvm, linux-oem, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities
osv·2019-05-14·CVSS 5.6
[MEDIUM] linux, linux-aws, linux-gcp, linux-kvm, linux-oem, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities
linux, linux-aws, linux-gcp, linux-kvm, linux-oem, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities
Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Giorgi Maisuradze, Dan
Horea Lutas, Andrei Lutas, Volodymyr Pikhur, Stephan van Schaik, Alyssa
Milburn, Sebastian Österlund, Pietro Frigo, Kaveh Razavi, Herbert Bos,
Cristiano Giuffrida, Moritz Lipp, Michael Schwarz, and Daniel Gruss
discovered that memory previously stored in microarchitectural fill buffers
of an Intel CPU core may be exposed to a malicious process that is
executing on the same CPU core. A local attacker could use this to expose
sensitive information. (CVE-2018-12130)
Brandon Falk, Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Stephan
van Schaik, Alyssa Milburn, Sebastian Österlund, Pietro Frigo, Kave
OSV
linux-lts-xenial, linux-aws vulnerabilities
osv·2019-04-02·CVSS 7.0
CVE-2017-18249 [HIGH] linux-lts-xenial, linux-aws vulnerabilities
linux-lts-xenial, linux-aws vulnerabilities
USN-3932-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04
LTS. This update provides the corresponding updates for the Linux
Hardware Enablement (HWE) kernel from Ubuntu 16.04 LTS for Ubuntu
14.04 LTS.
It was discovered that a race condition existed in the f2fs file system
implementation in the Linux kernel. A local attacker could use this to
cause a denial of service. (CVE-2017-18249)
Wen Xu discovered that the f2fs file system implementation in the Linux
kernel did not properly validate metadata. An attacker could use this to
construct a malicious f2fs image that, when mounted, could cause a denial
of service (system crash). (CVE-2018-13097, CVE-2018-13099, CVE-2018-13100,
CVE-2018-14614, CVE-2018-14616)
Wen Xu and Po-Ning Tseng
OSV
linux, linux-aws, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities
osv·2019-04-02·CVSS 7.0
CVE-2017-18249 [HIGH] linux, linux-aws, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities
linux, linux-aws, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities
It was discovered that a race condition existed in the f2fs file system
implementation in the Linux kernel. A local attacker could use this to
cause a denial of service. (CVE-2017-18249)
Wen Xu discovered that the f2fs file system implementation in the Linux
kernel did not properly validate metadata. An attacker could use this to
construct a malicious f2fs image that, when mounted, could cause a denial
of service (system crash). (CVE-2018-13097, CVE-2018-13099, CVE-2018-13100,
CVE-2018-14614, CVE-2018-14616)
Wen Xu and Po-Ning Tseng discovered that btrfs file system implementation
in the Linux kernel did not properly validate metadata. An attacker could
use this to construct a malicious btrfs image that, when mo
OSV
CVE-2018-16884: A flaw was found in the Linux kernel's NFS41+ subsystem
osv·2018-12-18·CVSS 8.0
CVE-2018-16884 [HIGH] CVE-2018-16884: A flaw was found in the Linux kernel's NFS41+ subsystem
A flaw was found in the Linux kernel's NFS41+ subsystem. NFS41+ shares mounted in different network namespaces at the same time can make bc_svc_process() use wrong back-channel IDs and cause a use-after-free vulnerability. Thus a malicious container user can cause a host kernel memory corruption and a system panic. Due to the nature of the flaw, privilege escalation cannot be fully ruled out.
Ubuntu
Linux kernel (HWE) vulnerabilities
vendor_ubuntu·2019-05-15·CVSS 5.6
CVE-2018-12126 [MEDIUM] Linux kernel (HWE) vulnerabilities
Title: Linux kernel (HWE) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
USN-3981-1 fixed vulnerabilities in the Linux kernel for Ubuntu 18.04
LTS. This update provides the corresponding updates for the Linux
Hardware Enablement (HWE) kernel from Ubuntu 18.04 LTS for Ubuntu
16.04 LTS and for the Linux Azure kernel for Ubuntu 14.04 LTS.
Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Giorgi Maisuradze, Dan
Horea Lutas, Andrei Lutas, Volodymyr Pikhur, Stephan van Schaik, Alyssa
Milburn, Sebastian Österlund, Pietro Frigo, Kaveh Razavi, Herbert Bos,
Cristiano Giuffrida, Moritz Lipp, Michael Schwarz, and Daniel Gruss
discovered that memory previously stored in microarchitectural fill buffers
of an Intel CPU core may be exposed to a malicious process tha
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2019-05-14·CVSS 5.6
CVE-2018-12126 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Giorgi Maisuradze, Dan
Horea Lutas, Andrei Lutas, Volodymyr Pikhur, Stephan van Schaik, Alyssa
Milburn, Sebastian Österlund, Pietro Frigo, Kaveh Razavi, Herbert Bos,
Cristiano Giuffrida, Moritz Lipp, Michael Schwarz, and Daniel Gruss
discovered that memory previously stored in microarchitectural fill buffers
of an Intel CPU core may be exposed to a malicious process that is
executing on the same CPU core. A local attacker could use this to expose
sensitive information. (CVE-2018-12130)
Brandon Falk, Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Stephan
van Schaik, Alyssa Milburn, Sebastian Österlund, Pietro Frigo, Kaveh
Razavi,
Ubuntu
Linux kernel (HWE) vulnerabilities
vendor_ubuntu·2019-05-14·CVSS 5.6
CVE-2018-12126 [MEDIUM] Linux kernel (HWE) vulnerabilities
Title: Linux kernel (HWE) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
USN-3980-1 fixed vulnerabilities in the Linux kernel for Ubuntu 18.10.
This update provides the corresponding updates for the Linux
Hardware Enablement (HWE) kernel from Ubuntu 18.10 for Ubuntu
18.04 LTS.
Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Giorgi Maisuradze, Dan
Horea Lutas, Andrei Lutas, Volodymyr Pikhur, Stephan van Schaik, Alyssa
Milburn, Sebastian Österlund, Pietro Frigo, Kaveh Razavi, Herbert Bos,
Cristiano Giuffrida, Moritz Lipp, Michael Schwarz, and Daniel Gruss
discovered that memory previously stored in microarchitectural fill buffers
of an Intel CPU core may be exposed to a malicious process that is
executing on the same CPU core. A local attacker could
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2019-05-14·CVSS 5.6
CVE-2018-12126 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Giorgi Maisuradze, Dan
Horea Lutas, Andrei Lutas, Volodymyr Pikhur, Stephan van Schaik, Alyssa
Milburn, Sebastian Österlund, Pietro Frigo, Kaveh Razavi, Herbert Bos,
Cristiano Giuffrida, Moritz Lipp, Michael Schwarz, and Daniel Gruss
discovered that memory previously stored in microarchitectural fill buffers
of an Intel CPU core may be exposed to a malicious process that is
executing on the same CPU core. A local attacker could use this to expose
sensitive information. (CVE-2018-12130)
Brandon Falk, Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Stephan
van Schaik, Alyssa Milburn, Sebastian Österlund, Pietro Frigo, Kaveh
Razavi,
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2019-04-02·CVSS 7.0
CVE-2017-18249 [HIGH] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
It was discovered that a race condition existed in the f2fs file system
implementation in the Linux kernel. A local attacker could use this to
cause a denial of service. (CVE-2017-18249)
Wen Xu discovered that the f2fs file system implementation in the Linux
kernel did not properly validate metadata. An attacker could use this to
construct a malicious f2fs image that, when mounted, could cause a denial
of service (system crash). (CVE-2018-13097, CVE-2018-13099, CVE-2018-13100,
CVE-2018-14614, CVE-2018-14616)
Wen Xu and Po-Ning Tseng discovered that btrfs file system implementation
in the Linux kernel did not properly validate metadata. An attacker could
use this to construct a malicious
Ubuntu
Linux kernel (Xenial HWE) vulnerabilities
vendor_ubuntu·2019-04-02·CVSS 7.0
CVE-2017-18249 [HIGH] Linux kernel (Xenial HWE) vulnerabilities
Title: Linux kernel (Xenial HWE) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
USN-3932-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04
LTS. This update provides the corresponding updates for the Linux
Hardware Enablement (HWE) kernel from Ubuntu 16.04 LTS for Ubuntu
14.04 LTS.
It was discovered that a race condition existed in the f2fs file system
implementation in the Linux kernel. A local attacker could use this to
cause a denial of service. (CVE-2017-18249)
Wen Xu discovered that the f2fs file system implementation in the Linux
kernel did not properly validate metadata. An attacker could use this to
construct a malicious f2fs image that, when mounted, could cause a denial
of service (system crash). (CVE-2018-13097, CVE-2018-13099, CVE
Red Hat
kernel: nfs: use-after-free in svc_process_common()
vendor_redhat·2018-11-27·CVSS 8.0
CVE-2018-16884 [HIGH] CWE-416 kernel: nfs: use-after-free in svc_process_common()
kernel: nfs: use-after-free in svc_process_common()
A flaw was found in the Linux kernel's NFS41+ subsystem. NFS41+ shares mounted in different network namespaces at the same time can make bc_svc_process() use wrong back-channel IDs and cause a use-after-free vulnerability. Thus a malicious container user can cause a host kernel memory corruption and a system panic. Due to the nature of the flaw, privilege escalation cannot be fully ruled out.
A flaw was found in the Linux kernel's NFS41+ subsystem. NFS41+ shares mounted in different network namespaces at the same time can make bc_svc_process() use wrong back-channel IDs and cause a use-after-free vulnerability. Thus a malicious container user can cause a host kernel memory corruption and a system panic. Due to the nature of the flaw, pr
Debian
CVE-2018-16884: linux - A flaw was found in the Linux kernel's NFS41+ subsystem. NFS41+ shares mounted i...
vendor_debian·2018·CVSS 8.0
CVE-2018-16884 [HIGH] CVE-2018-16884: linux - A flaw was found in the Linux kernel's NFS41+ subsystem. NFS41+ shares mounted i...
A flaw was found in the Linux kernel's NFS41+ subsystem. NFS41+ shares mounted in different network namespaces at the same time can make bc_svc_process() use wrong back-channel IDs and cause a use-after-free vulnerability. Thus a malicious container user can cause a host kernel memory corruption and a system panic. Due to the nature of the flaw, privilege escalation cannot be fully ruled out.
Scope: local
bookworm: resolved (fixed in 4.19.16-1)
bullseye: resolved (fixed in 4.19.16-1)
forky: resolved (fixed in 4.19.16-1)
sid: resolved (fixed in 4.19.16-1)
trixie: resolved (fixed in 4.19.16-1)
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2018-16884 kernel: nfs: use-after-free in svc_process_common() [fedora-all]
bugzilla·2018-12-19·CVSS 8.0
CVE-2018-16884 [HIGH] CVE-2018-16884 kernel: nfs: use-after-free in svc_process_common() [fedora-all]
CVE-2018-16884 kernel: nfs: use-after-free in svc_process_common() [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 supported versio
Bugzilla
CVE-2018-16884 kernel: nfs: use-after-free in svc_process_common()
bugzilla·2018-12-18·CVSS 8.0
CVE-2018-16884 [HIGH] CVE-2018-16884 kernel: nfs: use-after-free in svc_process_common()
CVE-2018-16884 kernel: nfs: use-after-free in svc_process_common()
A flaw was found in the Linux kernel in the NFS41+ subsystem. NFS41+ shares mounted in different network namespaces at the same time can make bc_svc_process() use wrong back-channel id and cause a use-after-free. Thus a malicious container user can cause a host kernel memory corruption and a system panic. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although we believe it is unlikely.
References:
https://seclists.org/oss-sec/2018/q4/267
A proposed patchset:
https://patchwork.kernel.org/cover/10733767/
https://patchwork.kernel.org/patch/10733769/
Discussion:
Acknowledgements:
Name: Vasily Averin (Virtuozzo), Evgenii Shatokhin (Virtuozzo)
---
Created kernel tracking bugs for this i
http://www.securityfocus.com/bid/106253https://access.redhat.com/errata/RHSA-2019:1873https://access.redhat.com/errata/RHSA-2019:1891https://access.redhat.com/errata/RHSA-2019:2696https://access.redhat.com/errata/RHSA-2019:2730https://access.redhat.com/errata/RHSA-2019:3309https://access.redhat.com/errata/RHSA-2019:3517https://access.redhat.com/errata/RHSA-2020:0204https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16884https://lists.debian.org/debian-lts-announce/2019/03/msg00034.htmlhttps://lists.debian.org/debian-lts-announce/2019/04/msg00004.htmlhttps://lists.debian.org/debian-lts-announce/2019/05/msg00002.htmlhttps://patchwork.kernel.org/cover/10733767/https://patchwork.kernel.org/patch/10733769/https://support.f5.com/csp/article/K21430012https://usn.ubuntu.com/3932-1/https://usn.ubuntu.com/3932-2/https://usn.ubuntu.com/3980-1/https://usn.ubuntu.com/3980-2/https://usn.ubuntu.com/3981-1/https://usn.ubuntu.com/3981-2/https://www.oracle.com/security-alerts/cpuApr2021.htmlhttp://www.securityfocus.com/bid/106253https://access.redhat.com/errata/RHSA-2019:1873https://access.redhat.com/errata/RHSA-2019:1891https://access.redhat.com/errata/RHSA-2019:2696https://access.redhat.com/errata/RHSA-2019:2730https://access.redhat.com/errata/RHSA-2019:3309https://access.redhat.com/errata/RHSA-2019:3517https://access.redhat.com/errata/RHSA-2020:0204https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16884https://lists.debian.org/debian-lts-announce/2019/03/msg00034.htmlhttps://lists.debian.org/debian-lts-announce/2019/04/msg00004.htmlhttps://lists.debian.org/debian-lts-announce/2019/05/msg00002.htmlhttps://patchwork.kernel.org/cover/10733767/https://patchwork.kernel.org/patch/10733769/https://support.f5.com/csp/article/K21430012https://usn.ubuntu.com/3932-1/https://usn.ubuntu.com/3932-2/https://usn.ubuntu.com/3980-1/https://usn.ubuntu.com/3980-2/https://usn.ubuntu.com/3981-1/https://usn.ubuntu.com/3981-2/https://www.oracle.com/security-alerts/cpuApr2021.html
2018-12-18
Published