SB2023070810 - openEuler 20.03 LTS SP1 update for kernel

Description

This security bulletin contains information about 7 secuirty vulnerabilities.

1) Out-of-bounds read (CVE-ID: CVE-2023-2860)

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition within the SR-IPv6 implementation when processing seg6 attributes. A local user can trigger an out-of-bounds read error and read contents of memory on the system.

2) Processor optimization removal or modification of security-critical code (CVE-ID: CVE-2023-3006)

The vulnerability allow a local user to gain access to sensitive information.

The vulnerability exists due to a known cache speculation vulnerability (Spectre-BHB) for the new hw AmpereOne. A local user can gain access to sensitive information.

3) Use-after-free (CVE-ID: CVE-2023-3159)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the outbound_phy_packet_callback() function in driver/firewire in Linux kernel. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.

4) Incorrect calculation (CVE-ID: CVE-2023-3161)

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to incorrect calculation in the Framebuffer Console (fbcon) in the Linux kernel. A local user can perform a denial of service (DoS) attack.

5) Out-of-bounds read (CVE-ID: CVE-2023-34256)

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary condition within crc16 in lib/crc16.c when called from fs/ext4/super.c. A local user can trigger an out-of-bounds read error and crash the kernel.

6) Race condition (CVE-ID: CVE-2023-35823)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a race condition within the saa7134_finidev() function in drivers/media/pci/saa7134/saa7134-core.c. A local user can exploit the race and gain unauthorized access to sensitive information and escalate privileges on the system.

7) Race condition (CVE-ID: CVE-2023-35828)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a race condition within the renesas_usb3_remove() function in drivers/usb/gadget/udc/renesas_usb3.c. A local user can exploit the race and gain unauthorized access to sensitive information and escalate privileges on the system.

Remediation

Install update from vendor's website.

References

• https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2023-1397