Summary
Yu Hao and Weiteng Chen discovered that the Bluetooth HCI UART driver in
the Linux kernel contained a race condition, leading to a null pointer
dereference vulnerability. A local attacker could use this to cause a
denial of service (system crash). (CVE-2023-31083)
Lin Ma discovered that the Netlink Transformation (XFRM) subsystem in the
Linux kernel contained a null pointer dereference vulnerability in some
situations. A local privileged attacker could use this to cause a denial of
service (system crash). (CVE-2023-3772)
Chih-Yen Chang discovered that the KSMBD implementation in the Linux kernel
did not properly validate SMB request protocol IDs, leading to a out-of-
bounds read vulnerability. A remote attacker could possibly use this to
cause a denial of service (system crash). (CVE-2023-38430)
Chih-Yen Chang discovered that the KSMBD implementation in the Linux kernel
did not properly validate command payload size, leading to a out-of-bounds
read vulnerability. A remote attacker could possibly use this to cause a
denial of service (system crash). (CVE-2023-38432)
It was discovered that the NFC implementation in the Linux kernel contained
a use-after-free vulnerability when performing peer-to-peer communication
in certain conditions. A privileged attacker could use this to cause a
denial of service (system crash) or possibly expose sensitive information
(kernel memory). (CVE-2023-3863)
Laurence Wit discovered that the KSMBD implementation in the Linux kernel
did not properly validate a buffer size in certain situations, leading to
an out-of-bounds read vulnerability. A remote attacker could use this to
cause a denial of service (system crash) or possibly expose sensitive
information. (CVE-2023-3865)
Laurence Wit discovered that the KSMBD implementation in the Linux kernel
contained a null pointer dereference vulnerability when handling handling
chained requests. A remote attacker could use this to cause a denial of
service (system crash). (CVE-2023-3866)
It was discovered that the KSMBD implementation in the Linux kernel did not
properly handle session setup requests, leading to an out-of-bounds read
vulnerability. A remote attacker could use this to expose sensitive
information. (CVE-2023-3867)
It was discovered that the Siano USB MDTV receiver device driver in the
Linux kernel did not properly handle device initialization failures in
certain situations, leading to a use-after-free vulnerability. A physically
proximate attacker could use this cause a denial of service (system crash).
(CVE-2023-4132)
It was discovered that a race condition existed in the Cypress touchscreen
driver in the Linux kernel during device removal, leading to a use-after-
free vulnerability. A physically proximate attacker could use this to cause
a denial of service (system crash) or possibly execute arbitrary code.
(CVE-2023-4134)
Thelford Williams discovered that the Ceph file system messenger protocol
implementation in the Linux kernel did not properly validate frame segment
length in certain situation, leading to a buffer overflow vulnerability. A
remote attacker could use this to cause a denial of service (system crash)
or possibly execute arbitrary code. (CVE-2023-44466)
Fixed packages 6
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · 22.04 LTS 22.04:LTS | linux-aws-6.2 | 6.2.0-1015.15~22.04.1 |
| Ubuntu · 22.04 LTS 22.04:LTS | linux-azure-6.2 | 6.2.0-1016.16~22.04.1 |
| Ubuntu · 22.04 LTS 22.04:LTS | linux-azure-fde-6.2 | 6.2.0-1016.16~22.04.1.1 |
| Ubuntu · 22.04 LTS 22.04:LTS | linux-gcp-6.2 | 6.2.0-1018.20~22.04.1 |
| Ubuntu · 22.04 LTS 22.04:LTS | linux-hwe-6.2 | 6.2.0-36.37~22.04.1 |
| Ubuntu · 22.04 LTS 22.04:LTS | linux-lowlatency-hwe-6.2 | 6.2.0-1016.16~22.04.1 |
Vulnerabilities 11
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Critical 9.1
ksmbd: fix out of bounds read in smb2_sess_setup
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix out of bounds read in smb2_sess_setup ksmbd does not consider the case of that smb2 session setup is in compound request. If this is the second payload of the compound, OOB read is…
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High 8.1
ksmbd: fix out-of-bound read in smb2_write
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix out-of-bound read in smb2_write ksmbd_smb2_check_message doesn't validate hdr->NextCommand. If ->NextCommand is bigger than Offset + Length of smb2 write, It will allow oversized s…
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High 7.5CVE-2023-3866 EPSS 13%
ksmbd: validate session id and tree id in the compound request
In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate session id and tree id in the compound request This patch validate session id and tree id in compound request. If first operation in the compound is SMB2 ECHO request, ksmbd b…
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Medium 6.4
Use-after-free in nfc_llcp_find_loca in net/nfc/llcp_core.c
A use-after-free flaw was found in nfc_llcp_find_local in net/nfc/llcp_core.c in NFC in the Linux kernel. This flaw allows a local user with special privileges to impact a kernel information leak issue.
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Medium 5.5
Kernel: xfrm: null pointer dereference in xfrm_update_ae_params()
A flaw was found in the Linux kernel’s IP framework for transforming packets (XFRM subsystem). This issue may allow a malicious user with CAP_NET_ADMIN privileges to directly dereference a NULL pointer in xfrm_update_ae_params(), leading to a possible kernel …
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Medium 5.5
Kernel: smsusb: use-after-free caused by do_submit_urb()
A use-after-free vulnerability was found in the siano smsusb module in the Linux kernel. The bug occurs during device initialization when the siano device is plugged in. This flaw allows a local user to crash the system, causing a denial of service condition.
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Medium 5.5
Kernel: cyttsp4_core: use-after-free in cyttsp4_watchdog_work()
A use-after-free vulnerability was found in the cyttsp4_core driver in the Linux kernel. This issue occurs in the device cleanup routine due to a possible rearming of the watchdog_timer from the workqueue. This could allow a local user to crash the system, ca…
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Unscored —
An issue was discovered in drivers/bluetooth/hci_ldisc.c in the Linux kernel 6.2. In hci_uart_tty_ioctl, there is a rac…
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Unscored —
An issue was discovered in the Linux kernel before 6.3.9. ksmbd does not validate the SMB request protocol ID, leading …
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Unscored —
An issue was discovered in the Linux kernel before 6.3.10. fs/smb/server/smb2misc.c in ksmbd does not validate the rela…
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Unscored —CVE-2023-44466 EPSS 45%
An issue was discovered in net/ceph/messenger_v2.c in the Linux kernel before 6.4.5. There is an integer signedness err…
References
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report
https://ubuntu.com/security/CVE-2023-3772
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report
https://ubuntu.com/security/CVE-2023-3863
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report
https://ubuntu.com/security/CVE-2023-3865
-
report
https://ubuntu.com/security/CVE-2023-3866
-
report
https://ubuntu.com/security/CVE-2023-3867
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report
https://ubuntu.com/security/CVE-2023-4132
-
report
https://ubuntu.com/security/CVE-2023-4134
-
report
https://ubuntu.com/security/CVE-2023-31083
-
report
https://ubuntu.com/security/CVE-2023-38430
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report
https://ubuntu.com/security/CVE-2023-38432
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report
https://ubuntu.com/security/CVE-2023-44466