CVE-2020-11669
published 2020-04-10CVE-2020-11669: An issue was discovered in the Linux kernel before 5.2 on the powerpc platform. arch/powerpc/kernel/idle_book3s.S does not have save/restore functionality for…
PriorityP420medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.48%
38.1th percentile
An issue was discovered in the Linux kernel before 5.2 on the powerpc platform. arch/powerpc/kernel/idle_book3s.S does not have save/restore functionality for PNV_POWERSAVE_AMR, PNV_POWERSAVE_UAMOR, and PNV_POWERSAVE_AMOR, aka CID-53a712bae5dd.
Affected
9 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 5.2.6-1 (bookworm) | linux 5.2.6-1 (bookworm) |
| linux | linux_kernel | < 5.2 | 5.2 |
| linux | linux_kernel | >= 0 < 5.2.6-1 | 5.2.6-1 |
| linux | linux_kernel | >= 0 < 5.2.6-1 | 5.2.6-1 |
| linux | linux_kernel | >= 0 < 5.2.6-1 | 5.2.6-1 |
| linux | linux_kernel | >= 0 < 5.2.6-1 | 5.2.6-1 |
| linux | linux_kernel | >= 0 < 4.15.0-101.102 | 4.15.0-101.102 |
| opensuse | leap | — | — |
| redhat | enterprise_linux | — | — |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
nvdv2.02.1LOWAV:L/AC:L/Au:N/C:N/I:N/A:P
osv6.7MEDIUM
vendor_ubuntu6.7MEDIUM
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-j84w-6r3r-7jvc: An issue was discovered in the Linux kernel before 5
ghsa_unreviewed·2022-05-24
CVE-2020-11669 [MEDIUM] GHSA-j84w-6r3r-7jvc: An issue was discovered in the Linux kernel before 5
An issue was discovered in the Linux kernel before 5.2 on the powerpc platform. arch/powerpc/kernel/idle_book3s.S does not have save/restore functionality for PNV_POWERSAVE_AMR, PNV_POWERSAVE_UAMOR, and PNV_POWERSAVE_AMOR, aka CID-53a712bae5dd.
OSV
linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-gcp, linux-gke-4.15, linux-hwe, linux-kvm, linux-oem, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities
osv·2020-05-28·CVSS 4.4
CVE-2020-11494 [MEDIUM] linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-gcp, linux-gke-4.15, linux-hwe, linux-kvm, linux-oem, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities
linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-gcp, linux-gke-4.15, linux-hwe, linux-kvm, linux-oem, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities
It was discovered that the Serial CAN interface driver in the Linux kernel
did not properly initialize data. A local attacker could use this to expose
sensitive information (kernel memory). (CVE-2020-11494)
It was discovered that the linux kernel did not properly validate certain
mount options to the tmpfs virtual memory file system. A local attacker
with the ability to specify mount options could use this to cause a denial
of service (system crash). (CVE-2020-11565)
David Gibson discovered that the Linux kernel on Power9 CPUs did not
properly save and restore Authority Mask registers state in some
situat
OSV
linux-gke-5.0, linux-oem-osp1 vulnerabilities
osv·2020-05-19·CVSS 6.7
CVE-2019-19769 [MEDIUM] linux-gke-5.0, linux-oem-osp1 vulnerabilities
linux-gke-5.0, linux-oem-osp1 vulnerabilities
Tristan Madani discovered that the file locking implementation in the Linux
kernel contained a race condition. A local attacker could possibly use this
to cause a denial of service or expose sensitive information.
(CVE-2019-19769)
It was discovered that the Serial CAN interface driver in the Linux kernel
did not properly initialize data. A local attacker could use this to expose
sensitive information (kernel memory). (CVE-2020-11494)
It was discovered that the linux kernel did not properly validate certain
mount options to the tmpfs virtual memory file system. A local attacker
with the ability to specify mount options could use this to cause a denial
of service (system crash). (CVE-2020-11565)
It was discovered that the OV51x USB Camera dev
OSV
CVE-2020-11669: An issue was discovered in the Linux kernel before 5
osv·2020-04-10·CVSS 5.5
CVE-2020-11669 [MEDIUM] CVE-2020-11669: An issue was discovered in the Linux kernel before 5
An issue was discovered in the Linux kernel before 5.2 on the powerpc platform. arch/powerpc/kernel/idle_book3s.S does not have save/restore functionality for PNV_POWERSAVE_AMR, PNV_POWERSAVE_UAMOR, and PNV_POWERSAVE_AMOR, aka CID-53a712bae5dd.
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2020-05-28·CVSS 4.4
CVE-2020-11494 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
It was discovered that the Serial CAN interface driver in the Linux kernel
did not properly initialize data. A local attacker could use this to expose
sensitive information (kernel memory). (CVE-2020-11494)
It was discovered that the linux kernel did not properly validate certain
mount options to the tmpfs virtual memory file system. A local attacker
with the ability to specify mount options could use this to cause a denial
of service (system crash). (CVE-2020-11565)
David Gibson discovered that the Linux kernel on Power9 CPUs did not
properly save and restore Authority Mask registers state in some
situations. A local attacker in a guest VM could use this to cause a denial
of service (h
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2020-05-19·CVSS 6.7
CVE-2019-19769 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Tristan Madani discovered that the file locking implementation in the Linux
kernel contained a race condition. A local attacker could possibly use this
to cause a denial of service or expose sensitive information.
(CVE-2019-19769)
It was discovered that the Serial CAN interface driver in the Linux kernel
did not properly initialize data. A local attacker could use this to expose
sensitive information (kernel memory). (CVE-2020-11494)
It was discovered that the linux kernel did not properly validate certain
mount options to the tmpfs virtual memory file system. A local attacker
with the ability to specify mount options could use this to cause a denial
of service (system crash). (CVE-2020
Red Hat
kernel: powerpc: guest can cause DoS on POWER9 KVM hosts
vendor_redhat·2020-04-10·CVSS 5.5
CVE-2020-11669 [MEDIUM] CWE-393 kernel: powerpc: guest can cause DoS on POWER9 KVM hosts
kernel: powerpc: guest can cause DoS on POWER9 KVM hosts
An issue was discovered in the Linux kernel before 5.2 on the powerpc platform. arch/powerpc/kernel/idle_book3s.S does not have save/restore functionality for PNV_POWERSAVE_AMR, PNV_POWERSAVE_UAMOR, and PNV_POWERSAVE_AMOR, aka CID-53a712bae5dd.
A flaw was found in the way Linux kernel running on the Power9 processor saves and restores its registers while going in and coming out of an idle state. The issue occurs when a guest kernel has Kernel Userspace Address Protection (KUAP) feature enabled. The idle_book3s function does not save and restore the Authority Mask Register (AMR), Authority Mask Override Register (AMOR) and User Authority Mask Override Register (UAMOR). A guest user may use this flaw to render the host system unusabl
Debian
CVE-2020-11669: linux - An issue was discovered in the Linux kernel before 5.2 on the powerpc platform. ...
vendor_debian·2020·CVSS 5.5
CVE-2020-11669 [MEDIUM] CVE-2020-11669: linux - An issue was discovered in the Linux kernel before 5.2 on the powerpc platform. ...
An issue was discovered in the Linux kernel before 5.2 on the powerpc platform. arch/powerpc/kernel/idle_book3s.S does not have save/restore functionality for PNV_POWERSAVE_AMR, PNV_POWERSAVE_UAMOR, and PNV_POWERSAVE_AMOR, aka CID-53a712bae5dd.
Scope: local
bookworm: resolved (fixed in 5.2.6-1)
bullseye: resolved (fixed in 5.2.6-1)
forky: resolved (fixed in 5.2.6-1)
sid: resolved (fixed in 5.2.6-1)
trixie: resolved (fixed in 5.2.6-1)
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2020-11669 kernel: powerpc: guest can cause DoS on POWER9 KVM hosts [fedora-all]
bugzilla·2020-04-16·CVSS 5.5
CVE-2020-11669 [MEDIUM] CVE-2020-11669 kernel: powerpc: guest can cause DoS on POWER9 KVM hosts [fedora-all]
CVE-2020-11669 kernel: powerpc: guest can cause DoS on POWER9 KVM hosts [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 v
Bugzilla
CVE-2020-11669 kernel: powerpc: guest can cause DoS on POWER9 KVM hosts
bugzilla·2020-04-16·CVSS 5.5
CVE-2020-11669 [MEDIUM] CVE-2020-11669 kernel: powerpc: guest can cause DoS on POWER9 KVM hosts
CVE-2020-11669 kernel: powerpc: guest can cause DoS on POWER9 KVM hosts
A flaw was found in the way Linux kernel running on the Power9 processor saves and restores its registers while going in and coming out of an idle state. The issue occurs when a guest kernel has Kernel Userspace Address Protection (KUAP) feature enabled. The idle_book3s function does not save and restore the Authority Mask Register (AMR), Authority Mask Override Register (AMOR) and User Authority Mask Override Register (UAMOR). A guest user may use this flaw to render the host system unusable resulting in DoS issue.
Upstream commit:
-> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=53a712bae5dd919521a58d7bad773b949358add0
Reference:
-> http://www.openwall.com/lists/oss-security/2020/04/1
http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00035.htmlhttps://access.redhat.com/errata/RHSA-2019:3517https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.2https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=53a712bae5dd919521a58d7bad773b949358add0https://github.com/torvalds/linux/commit/53a712bae5dd919521a58d7bad773b949358add0https://lists.ozlabs.org/pipermail/linuxppc-dev/2020-April/208660.htmlhttps://lists.ozlabs.org/pipermail/linuxppc-dev/2020-April/208661.htmlhttps://lists.ozlabs.org/pipermail/linuxppc-dev/2020-April/208663.htmlhttps://security.netapp.com/advisory/ntap-20200430-0001/https://usn.ubuntu.com/4363-1/https://usn.ubuntu.com/4368-1/http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00035.htmlhttps://access.redhat.com/errata/RHSA-2019:3517https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.2https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=53a712bae5dd919521a58d7bad773b949358add0https://github.com/torvalds/linux/commit/53a712bae5dd919521a58d7bad773b949358add0https://lists.ozlabs.org/pipermail/linuxppc-dev/2020-April/208660.htmlhttps://lists.ozlabs.org/pipermail/linuxppc-dev/2020-April/208661.htmlhttps://lists.ozlabs.org/pipermail/linuxppc-dev/2020-April/208663.htmlhttps://security.netapp.com/advisory/ntap-20200430-0001/https://usn.ubuntu.com/4363-1/https://usn.ubuntu.com/4368-1/
2020-04-10
Published