Summary
It was discovered that the Traffic-Control Index (TCINDEX) implementation
in the Linux kernel did not properly perform filter deactivation in some
situations. A local attacker could possibly use this to gain elevated
privileges. Please note that with the fix for this CVE, kernel support for
the TCINDEX classifier has been removed. (CVE-2023-1829)
William Zhao discovered that the Traffic Control (TC) subsystem in the
Linux kernel did not properly handle network packet retransmission in
certain situations. A local attacker could use this to cause a denial of
service (kernel deadlock). (CVE-2022-4269)
Thadeu Cascardo discovered that the io_uring subsystem contained a double-
free vulnerability in certain memory allocation error conditions. A local
attacker could possibly use this to cause a denial of service (system
crash). (CVE-2023-1032)
It was discovered that the TUN/TAP driver in the Linux kernel did not
properly initialize socket data. A local attacker could use this to cause a
denial of service (system crash). (CVE-2023-1076)
It was discovered that the Real-Time Scheduling Class implementation in the
Linux kernel contained a type confusion vulnerability in some situations. A
local attacker could use this to cause a denial of service (system crash).
(CVE-2023-1077)
It was discovered that the ASUS HID driver in the Linux kernel did not
properly handle device removal, leading to a use-after-free vulnerability.
A local attacker with physical access could plug in a specially crafted USB
device to cause a denial of service (system crash). (CVE-2023-1079)
It was discovered that the io_uring subsystem in the Linux kernel did not
properly perform file table updates in some situations, leading to a null
pointer dereference vulnerability. A local attacker could use this to cause
a denial of service (system crash). (CVE-2023-1583)
It was discovered that the Xircom PCMCIA network device driver in the Linux
kernel did not properly handle device removal events. A physically
proximate attacker could use this to cause a denial of service (system
crash). (CVE-2023-1670)
It was discovered that the APM X-Gene SoC hardware monitoring driver in the
Linux kernel contained a race condition, leading to a use-after-free
vulnerability. A local attacker could use this to cause a denial of service
(system crash) or expose sensitive information (kernel memory).
(CVE-2023-1855)
It was discovered that a race condition existed in the Bluetooth HCI SDIO
driver, leading to a use-after-free vulnerability. A local attacker could
use this to cause a denial of service (system crash). (CVE-2023-1989)
It was discovered that the ST NCI NFC driver did not properly handle device
removal events. A physically proximate attacker could use this to cause a
denial of service (system crash). (CVE-2023-1990)
Jose Oliveira and Rodrigo Branco discovered that the Spectre Variant 2
mitigations with prctl syscall were insufficient in some situations. A
local attacker could possibly use this to expose sensitive information.
(CVE-2023-1998)
It was discovered that the BigBen Interactive Kids' gamepad driver in the
Linux kernel did not properly handle device removal, leading to a use-
after-free vulnerability. A local attacker with physical access could plug
in a specially crafted USB device to cause a denial of service (system
crash). (CVE-2023-25012)
It was discovered that a race condition existed in the TLS subsystem in the
Linux kernel, leading to a use-after-free or a null pointer dereference
vulnerability. A local attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code. (CVE-2023-28466)
It was discovered that the Bluetooth subsystem in the Linux kernel did not
properly initialize some data structures, leading to an out-of-bounds
access vulnerability in certain situations. An attacker could use this to
expose sensitive information (kernel memory). (CVE-2023-28866)
Reima Ishii discovered that the nested KVM implementation for Intel x86
processors in the Linux kernel did not properly validate control registers
in certain situations. An attacker in a guest VM could use this to cause a
denial of service (guest crash). (CVE-2023-30456)
Duoming Zhou discovered that a race condition existed in the infrared
receiver/transceiver driver in the Linux kernel, leading to a use-after-
free vulnerability. A privileged attacker could use this to cause a denial
of service (system crash) or possibly execute arbitrary code.
(CVE-2023-1118)
Fixed packages 1
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · 22.04 LTS 22.04:LTS | linux-oem-6.1 | 6.1.0-1009.9 |
Vulnerabilities 17
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High 7.8
A flaw use after free in the Linux kernel integrated infrared receiver/transceiver driver was found in the way user det…
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High 7.8
A flaw use after free in the Linux kernel Xircom 16-bit PCMCIA (PC-card) Ethernet driver was found.A local user could u…
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High 7.8CVE-2023-1829 Public exploit
Use-after-free in tcindex (traffic control index filter) in the Linux Kernel
A use-after-free vulnerability in the Linux Kernel traffic control index filter (tcindex) can be exploited to achieve local privilege escalation. The tcindex_delete function which does not properly deactivate filters in case of a perfect hashes while deleting…
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High 7.0
Kernel: use after free bug in btsdio_remove due to race condition
A use-after-free flaw was found in btsdio_remove in drivers\bluetooth\btsdio.c in the Linux Kernel. A call to btsdio_remove with an unfinished job may cause a race problem which leads to a UAF on hdev devices.
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High 7.0
do_tls_getsockopt in net/tls/tls_main.c in the Linux kernel through 6.2.6 lacks a lock_sock call, leading to a race con…
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Medium 6.8
A flaw was found in the Linux kernel. A use-after-free may be triggered in asus_kbd_backlight_set when plugging/disconn…
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Medium 6.5
An issue was discovered in arch/x86/kvm/vmx/nested.c in the Linux kernel before 6.2.8. nVMX on x86_64 lacks consistency…
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Medium 6.3
A use-after-free flaw was found in xgene_hwmon_remove in drivers/hwmon/xgene-hwmon.c in the Hardware Monitoring Linux K…
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Medium 5.6CVE-2023-1998 Public exploit
Spectre v2 SMT mitigations problem in Linux kernel
The Linux kernel allows userspace processes to enable mitigations by calling prctl with PR_SET_SPECULATION_CTRL which disables the speculation feature as well as by using seccomp. We had noticed that on VMs of at least one major cloud provider, the kernel sti…
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Medium 5.5
A flaw was found in the Linux kernel Traffic Control (TC) subsystem. Using a specific networking configuration (redirec…
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Medium 5.5
A flaw was found in the Linux Kernel. The tun/tap sockets have their socket UID hardcoded to 0 due to a type confusion …
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Medium 5.5
A NULL pointer dereference was found in io_file_bitmap_get in io_uring/filetable.c in the io_uring sub-component in the…
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Medium 5.3
In the Linux kernel through 6.2.8, net/bluetooth/hci_sync.c allows out-of-bounds access because amp_init1[] and amp_ini…
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Medium 4.7
The Linux kernel io_uring IORING_OP_SOCKET operation contained a double free in function __sys_socket_file() in file ne…
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Medium 4.7
A use-after-free flaw was found in ndlc_remove in drivers/nfc/st-nci/ndlc.c in the Linux Kernel. This flaw could allow …
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Medium 4.6
The Linux kernel through 6.1.9 has a Use-After-Free in bigben_remove in drivers/hid/hid-bigbenff.c via a crafted USB de…
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Unscored —
In the Linux kernel, pick_next_rt_entity() may return a type confused entry, not detected by the BUG_ON condition, as t…
References
-
report
https://ubuntu.com/security/CVE-2022-4269
-
report
https://ubuntu.com/security/CVE-2023-1032
-
report
https://ubuntu.com/security/CVE-2023-1076
-
report
https://ubuntu.com/security/CVE-2023-1077
-
report
https://ubuntu.com/security/CVE-2023-1079
-
report
https://ubuntu.com/security/CVE-2023-1118
-
report
https://ubuntu.com/security/CVE-2023-1583
-
report
https://ubuntu.com/security/CVE-2023-1670
-
report
https://ubuntu.com/security/CVE-2023-1829
-
report
https://ubuntu.com/security/CVE-2023-1855
-
report
https://ubuntu.com/security/CVE-2023-1989
-
report
https://ubuntu.com/security/CVE-2023-1990
-
report
https://ubuntu.com/security/CVE-2023-1998
-
report
https://ubuntu.com/security/CVE-2023-25012
-
report
https://ubuntu.com/security/CVE-2023-28466
-
report
https://ubuntu.com/security/CVE-2023-28866
-
report
https://ubuntu.com/security/CVE-2023-30456