SB2022111164 - openEuler 22.03 LTS update for kernel

Description

This security bulletin contains information about 3 secuirty vulnerabilities.

1) Memory leak (CVE-ID: CVE-2022-3542)

The vulnerability allows a local user to perform DoS attack on the target system.

The vulnerability exists due memory leak within the bnx2x_tpa_stop() function in drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c. A local user can force the system to leak memory and perform denial of service attack.

2) NULL pointer dereference (CVE-ID: CVE-2022-3606)

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 find_prog_by_sec_insn() function in tools/lib/bpf/libbpf.c of the BPF component. A local user can perform a denial of service (DoS) attack.

3) Improper access control (CVE-ID: CVE-2022-40768)

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

The vulnerability exists due to improper access restrictions in the drivers/scsi/stex.c in the Linux kernel. A local user can obtain sensitive information from kernel memory because stex_queuecommand_lck lacks a memset for the PASSTHRU_CMD case.

Remediation

Install update from vendor's website.

References

• https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-2071