SB2023051789 - Ubuntu update for linux-raspi
Published: May 17, 2023 Updated: August 22, 2025
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 10 secuirty vulnerabilities.
1) Cross-thread return address predictions (CVE-ID: CVE-2022-27672)
The vulnerability allows a local user to gain access to sensitive information.
The vulnerability exists due to certain AMD processors may speculatively execute instructions at an incorrect return site after an SMT mode switch that may potentially lead to information disclosure.
2) Double Free (CVE-ID: CVE-2022-3707)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error within the intel_gvt_dma_map_guest_page() function in Intel GVT-g graphics driver. A local user can trigger a double free error and crash the kernel.
3) Processor optimization removal or modification of security-critical code (CVE-ID: CVE-2023-0459)
The vulnerability allows a local user to gain access to sensitive information.
The vulnerability exists due to improper implementation of speculative execution barriers in usercopy functions
in certain situations. A local user can gain access to sensitive information.
4) Type Confusion (CVE-ID: CVE-2023-1075)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a type confusion error within the tls_is_tx_ready() function in the net/tls stack of the Linux Kernel. A local user can trigger a type confusion error and execute arbitrary code with elevated privileges.
5) Out-of-bounds write (CVE-ID: CVE-2023-1078)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error within the rds_rm_zerocopy_callback() function in Linux kernel RDS (Reliable Datagram Sockets) protocol. A local user can trigger an out-of-bounds write and execute arbitrary code with elevated privileges.
6) Use-after-free (CVE-ID: CVE-2023-1118)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error in the Linux kernel integrated infrared receiver/transceiver driver "drivers/media/rc/ene_ir.c" when detaching rc device. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.
7) Improper Initialization (CVE-ID: CVE-2023-1513)
The vulnerability allows a local user to gain access to sensitive information.
The vulnerability exists due to improper initialization when calling the KVM_GET_DEBUGREGS ioctl on 32-bit systems. A local user can run a specially crafted application to gain access to sensitive information.
8) Buffer overflow (CVE-ID: CVE-2023-20938)
The vulnerability allows a local application to escalate privileges on the system.
9) Use-after-free (CVE-ID: CVE-2023-2162)
The vulnerability allows a local user to gain access to sensitive information.
The vulnerability exists due to a use-after-free error within the scsi_sw_tcp_session_create() function in drivers/scsi/iscsi_tcp.c in SCSI sub-component in the Linux Kernel. A local user can trigger a use-after-free error and gain access to sensitive information.
10) Use-after-free (CVE-ID: CVE-2023-32269)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error in net/netrom/af_netrom.c. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.
Successful exploitation of the vulnerability requires that the system has netrom routing configured or the attacker must have the CAP_NET_ADMIN capability.
Remediation
Install update from vendor's website.