Summary
It was discovered that the Traffic-Control Index (TCINDEX) implementation
in the Linux kernel contained a use-after-free vulnerability. A local
attacker could use this to cause a denial of service (system crash) or
possibly execute arbitrary code. (CVE-2023-1281)
Lin Ma discovered a race condition in the io_uring subsystem in the Linux
kernel, leading to a null pointer dereference vulnerability. A local
attacker could use this to cause a denial of service (system crash).
(CVE-2023-0468)
It was discovered that a use-after-free vulnerability existed in the SGI
GRU driver in the Linux kernel. A local attacker could possibly use this to
cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2022-3424)
Hyunwoo Kim discovered that the DVB Core driver in the Linux kernel did not
properly perform reference counting in some situations, leading to a use-
after-free vulnerability. A local attacker could use this to cause a denial
of service (system crash) or possibly execute arbitrary code.
(CVE-2022-41218)
It was discovered that the network queuing discipline implementation in the
Linux kernel contained a null pointer dereference in some situations. A
local attacker could use this to cause a denial of service (system crash).
(CVE-2022-47929)
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 module decompression implementation in the Linux
kernel did not properly handle return values in certain error conditions. A
local attacker could use this to cause a denial of service (system crash).
(CVE-2023-22997)
Lianhui Tang discovered that the MPLS implementation in the Linux kernel
did not properly handle certain sysctl allocation failure conditions,
leading to a double-free vulnerability. An attacker could use this to cause
a denial of service or possibly execute arbitrary code. (CVE-2023-26545)
It was discovered that the NTFS file system implementation in the Linux
kernel did not properly handle a loop termination condition, leading to an
out-of-bounds read vulnerability. A local attacker could use this to cause
a denial of service (system crash) or possibly expose sensitive
information. (CVE-2023-26606)
Wei Chen discovered that the DVB USB AZ6027 driver in the Linux kernel
contained a null pointer dereference when handling certain messages from
user space. A local attacker could use this to cause a denial of service
(system crash). (CVE-2023-28328)
Fixed packages 1
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · 22.04 LTS 22.04:LTS | linux-hwe-5.19 | 5.19.0-40.41~22.04.1 |
Vulnerabilities 10
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High 7.8
A use-after-free flaw was found in the Linux kernel’s SGI GRU driver in the way the first gru_file_unlocked_ioctl funct…
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High 7.8CVE-2023-1281 Public exploit
UAF in Linux kernel's tcindex (traffic control index filter) implementation
Use After Free vulnerability in Linux kernel traffic control index filter (tcindex) allows Privilege Escalation. The imperfect hash area can be updated while packets are traversing, which will cause a use-after-free when 'tcf_exts_exec()' is called with the d…
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High 7.8
In the Linux kernel 6.0.8, there is a use-after-free in ntfs_trim_fs in fs/ntfs3/bitmap.c.
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Medium 5.5CVE-2022-41218 Public exploit
In drivers/media/dvb-core/dmxdev.c in the Linux kernel through 5.19.10, there is a use-after-free caused by refcount ra…
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Medium 5.5
In the Linux kernel before 6.1.6, a NULL pointer dereference bug in the traffic control subsystem allows an unprivilege…
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Medium 5.5
In the Linux kernel before 6.1.2, kernel/module/decompress.c misinterprets the module_get_next_page return value (expec…
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Medium 5.5
A NULL pointer dereference flaw was found in the az6027 driver in drivers/media/usb/dev-usb/az6027.c in the Linux Kerne…
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Medium 4.7
A use-after-free flaw was found in io_uring/poll.c in io_poll_check_events in the io_uring subcomponent in the Linux Ke…
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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
In the Linux kernel before 6.1.13, there is a double free in net/mpls/af_mpls.c upon an allocation failure (for registe…
References
-
report
https://ubuntu.com/security/CVE-2022-3424
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report
https://ubuntu.com/security/CVE-2022-41218
-
report
https://ubuntu.com/security/CVE-2022-47929
-
report
https://ubuntu.com/security/CVE-2023-0468
-
report
https://ubuntu.com/security/CVE-2023-1032
-
report
https://ubuntu.com/security/CVE-2023-1281
-
report
https://ubuntu.com/security/CVE-2023-22997
-
report
https://ubuntu.com/security/CVE-2023-26545
-
report
https://ubuntu.com/security/CVE-2023-26606
-
report
https://ubuntu.com/security/CVE-2023-28328