CVE-2019-19252
published 2019-11-25CVE-2019-19252: vcs_write in drivers/tty/vt/vc_screen.c in the Linux kernel through 5.3.13 does not prevent write access to vcsu devices, aka CID-0c9acb1af77a.
PriorityP339high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.42%
34.8th percentile
vcs_write in drivers/tty/vt/vc_screen.c in the Linux kernel through 5.3.13 does not prevent write access to vcsu devices, aka CID-0c9acb1af77a.
Affected
6 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 5.4.6-1 (bookworm) | linux 5.4.6-1 (bookworm) |
| linux | linux_kernel | <= 5.3.13 | — |
| linux | linux_kernel | >= 0 < 5.4.6-1 | 5.4.6-1 |
| linux | linux_kernel | >= 0 < 5.4.6-1 | 5.4.6-1 |
| linux | linux_kernel | >= 0 < 5.4.6-1 | 5.4.6-1 |
| linux | linux_kernel | >= 0 < 5.4.6-1 | 5.4.6-1 |
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvdv2.04.6MEDIUMAV:L/AC:L/Au:N/C:P/I:P/A:P
osv7.8HIGH
vendor_debian7.8HIGH
vendor_redhat7.8HIGH
vendor_ubuntu7.5HIGH
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Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2020-02-19·CVSS 5.5
CVE-2019-15291 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
It was discovered that the Linux kernel did not properly clear data
structures on context switches for certain Intel graphics processors. A
local attacker could use this to expose sensitive information.
(CVE-2019-14615)
It was discovered that the Atheros 802.11ac wireless USB device driver in
the Linux kernel did not properly validate device metadata. A physically
proximate attacker could use this to cause a denial of service (system
crash). (CVE-2019-15099)
It was discovered that the HSA Linux kernel driver for AMD GPU devices did
not properly check for errors in certain situations, leading to a NULL
pointer dereference. A local attacker could possibly use this to cause a
denial of ser
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2020-01-29·CVSS 7.5
CVE-2019-15099 [HIGH] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
It was discovered that the Atheros 802.11ac wireless USB device driver in
the Linux kernel did not properly validate device metadata. A physically
proximate attacker could use this to cause a denial of service (system
crash). (CVE-2019-15099)
It was discovered that a race condition existed in the Virtual Video Test
Driver in the Linux kernel. An attacker with write access to /dev/video0 on
a system with the vivid module loaded could possibly use this to gain
administrative privileges. (CVE-2019-18683)
It was discovered that the btrfs file system in the Linux kernel did not
properly validate metadata, leading to a NULL pointer dereference. An
attacker could use this to specially craft a
Red Hat
kernel: vcs_write in drivers/tty/vt/vc_screen.c does not prevent write access to vcsu devices
vendor_redhat·2019-11-25·CVSS 7.8
CVE-2019-19252 [HIGH] CWE-862 kernel: vcs_write in drivers/tty/vt/vc_screen.c does not prevent write access to vcsu devices
kernel: vcs_write in drivers/tty/vt/vc_screen.c does not prevent write access to vcsu devices
vcs_write in drivers/tty/vt/vc_screen.c in the Linux kernel through 5.3.13 does not prevent write access to vcsu devices, aka CID-0c9acb1af77a.
A flaw was found in the Linux kernel’s virtual console implementation of Unicode usage. This flaw allows a local attacker with permissions on the /dev/vcsu* devices to crash the system or corrupt memory.
Mitigation: At this time there is no workaround that is suitable for a production system that would completely mitigate this flaw.
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
Debian
CVE-2019-19252: linux - vcs_write in drivers/tty/vt/vc_screen.c in the Linux kernel through 5.3.13 does ...
vendor_debian·2019·CVSS 7.8
CVE-2019-19252 [HIGH] CVE-2019-19252: linux - vcs_write in drivers/tty/vt/vc_screen.c in the Linux kernel through 5.3.13 does ...
vcs_write in drivers/tty/vt/vc_screen.c in the Linux kernel through 5.3.13 does not prevent write access to vcsu devices, aka CID-0c9acb1af77a.
Scope: local
bookworm: resolved (fixed in 5.4.6-1)
bullseye: resolved (fixed in 5.4.6-1)
forky: resolved (fixed in 5.4.6-1)
sid: resolved (fixed in 5.4.6-1)
trixie: resolved (fixed in 5.4.6-1)
GHSA
GHSA-3xcq-2f3r-vpwr: vcs_write in drivers/tty/vt/vc_screen
ghsa_unreviewed·2022-05-24
CVE-2019-19252 [MEDIUM] GHSA-3xcq-2f3r-vpwr: vcs_write in drivers/tty/vt/vc_screen
vcs_write in drivers/tty/vt/vc_screen.c in the Linux kernel through 5.3.13 does not prevent write access to vcsu devices.
OSV
linux, linux-aws, linux-azure, linux-azure-5.3, linux-gcp, linux-gcp-5.3, linux-hwe, linux-kvm, linux-oracle, linux-raspi2, linux-raspi2-5.3 vulnerabilities
osv·2020-02-19·CVSS 5.5
CVE-2019-14615 [MEDIUM] linux, linux-aws, linux-azure, linux-azure-5.3, linux-gcp, linux-gcp-5.3, linux-hwe, linux-kvm, linux-oracle, linux-raspi2, linux-raspi2-5.3 vulnerabilities
linux, linux-aws, linux-azure, linux-azure-5.3, linux-gcp, linux-gcp-5.3, linux-hwe, linux-kvm, linux-oracle, linux-raspi2, linux-raspi2-5.3 vulnerabilities
It was discovered that the Linux kernel did not properly clear data
structures on context switches for certain Intel graphics processors. A
local attacker could use this to expose sensitive information.
(CVE-2019-14615)
It was discovered that the Atheros 802.11ac wireless USB device driver in
the Linux kernel did not properly validate device metadata. A physically
proximate attacker could use this to cause a denial of service (system
crash). (CVE-2019-15099)
It was discovered that the HSA Linux kernel driver for AMD GPU devices did
not properly check for errors in certain situations, leading to a NULL
pointer dereference. A local at
OSV
linux-aws-5.0, linux-gcp, linux-gke-5.0, linux-oracle-5.0 vulnerabilities
osv·2020-01-29·CVSS 7.5
CVE-2019-15099 [HIGH] linux-aws-5.0, linux-gcp, linux-gke-5.0, linux-oracle-5.0 vulnerabilities
linux-aws-5.0, linux-gcp, linux-gke-5.0, linux-oracle-5.0 vulnerabilities
It was discovered that the Atheros 802.11ac wireless USB device driver in
the Linux kernel did not properly validate device metadata. A physically
proximate attacker could use this to cause a denial of service (system
crash). (CVE-2019-15099)
It was discovered that a race condition existed in the Virtual Video Test
Driver in the Linux kernel. An attacker with write access to /dev/video0 on
a system with the vivid module loaded could possibly use this to gain
administrative privileges. (CVE-2019-18683)
It was discovered that the btrfs file system in the Linux kernel did not
properly validate metadata, leading to a NULL pointer dereference. An
attacker could use this to specially craft a file system image that, when
OSV
CVE-2019-19252: vcs_write in drivers/tty/vt/vc_screen
osv·2019-11-25·CVSS 7.8
CVE-2019-19252 [HIGH] CVE-2019-19252: vcs_write in drivers/tty/vt/vc_screen
vcs_write in drivers/tty/vt/vc_screen.c in the Linux kernel through 5.3.13 does not prevent write access to vcsu devices, aka CID-0c9acb1af77a.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2019-19252 kernel: vcs_write in drivers/tty/vt/vc_screen.c does not prevent write access to vcsu devices
bugzilla·2019-12-02·CVSS 7.8
CVE-2019-19252 [HIGH] CVE-2019-19252 kernel: vcs_write in drivers/tty/vt/vc_screen.c does not prevent write access to vcsu devices
CVE-2019-19252 kernel: vcs_write in drivers/tty/vt/vc_screen.c does not prevent write access to vcsu devices
A flaw was found in the Linux kernels virtual console system which attempted to implement Unicode support. The read and write support for Unicode on virtual consoles were implemented with different commits and attempting to write to a virtual console which did not implement Unicode characters could allow for memory corruption and possibly other issues.
Reference and upstream commit:
https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git/commit/?h=tty-testing&id=0c9acb1af77a3cb8707e43f45b72c95266903cee
Discussion:
Created kernel tracking bugs for this issue:
Affects: fedora-all [bug 1778861]
---
This flaw is rated as moderate, the attacker requires a local account wit
Bugzilla
CVE-2019-19252 kernel: vcs_write in drivers/tty/vt/vc_screen.c does not prevent write access to vcsu devices [fedora-all]
bugzilla·2019-12-02·CVSS 7.8
CVE-2019-19252 [HIGH] CVE-2019-19252 kernel: vcs_write in drivers/tty/vt/vc_screen.c does not prevent write access to vcsu devices [fedora-all]
CVE-2019-19252 kernel: vcs_write in drivers/tty/vt/vc_screen.c does not prevent write access to vcsu devices [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: th
https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git/commit/?h=tty-testing&id=0c9acb1af77a3cb8707e43f45b72c95266903ceehttps://lore.kernel.org/lkml/c30fc539-68a8-65d7-226c-6f8e6fd8bdfb%40suse.com/https://security.netapp.com/advisory/ntap-20200103-0001/https://usn.ubuntu.com/4258-1/https://usn.ubuntu.com/4284-1/https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git/commit/?h=tty-testing&id=0c9acb1af77a3cb8707e43f45b72c95266903ceehttps://lore.kernel.org/lkml/c30fc539-68a8-65d7-226c-6f8e6fd8bdfb%40suse.com/https://security.netapp.com/advisory/ntap-20200103-0001/https://usn.ubuntu.com/4258-1/https://usn.ubuntu.com/4284-1/
2019-11-25
Published