SB2023091850 - Ubuntu update for linux-intel-iotg
Published: September 18, 2023
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 8 secuirty vulnerabilities.
1) Release of invalid pointer or reference (CVE-ID: CVE-2022-48425)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to an invalid kfree in fs/ntfs3/inode.c caused by improper validation of MFT flags before replaying logs. A local user can execute arbitrary code with elevated privileges.
2) Use-after-free (CVE-ID: CVE-2023-21255)
The vulnerability allows a local application to escalate privileges on the system.
The
vulnerability exists due to insufficient validation of user-supplied
input within the binder_transaction_buffer_release() function in Binder subsystem in Android kernel. A local application
can trigger a use-after-fee error and execute arbitrary code with elevated privileges.
3) NULL pointer dereference (CVE-ID: CVE-2023-2898)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error within the f2fs_write_end_io() function in fs/f2fs/data.c. A local user can pass specially crafted data to the system and perform a denial of service (DoS) attack.
4) Deadlock (CVE-ID: CVE-2023-31084)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a deadlock in drivers/media/dvb-core/dvb_frontend.c when a task is in !TASK_RUNNING. A local user can trigger a deadlock and crash the kernel.
5) NULL pointer dereference (CVE-ID: CVE-2023-3212)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error within the gfs2 file system in the Linux kernel. A local user can perform a denial of service (DoS) attack.
6) Out-of-bounds read (CVE-ID: CVE-2023-38426)
The vulnerability allows a remote attacker to gain access to potentially sensitive information or perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary condition within the smb2_find_context_vals() function. A remote attacker can send specially crafted data to the server, trigger an out-of-bounds read error and read contents of memory on the system or perform a denial of service (DoS) attack.
7) Out-of-bounds read (CVE-ID: CVE-2023-38428)
The vulnerability allows a remote attacker to gain access to potentially sensitive information or perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary condition in fs/ksmbd/smb2pdu.c. A remote attacker can send specially crafted data to the server, trigger an out-of-bounds read error and read contents of memory on the system or perform a denial of service (DoS) attack.
8) Off-by-one (CVE-ID: CVE-2023-38429)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to an off-by-one error within the ksmbd_smb2_check_message() function in fs/ksmbd/connection.c. A remote attacker can trigger an off-by-one error and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install update from vendor's website.