SB2023102069 - openEuler 20.03 LTS SP3 update for kernel

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Out-of-bounds read (CVE-ID: CVE-2023-39189)

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

The vulnerability exists due to a boundary condition within the nfnl_osf_add_callback() function in Linux kernel Netfilter. A local user with CAP_NET_ADMIN capability can trigger an out-of-bounds read error and execute arbitrary code with elevated privileges.

2) Out-of-bounds read (CVE-ID: CVE-2023-39193)

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

The vulnerability exists due to a boundary condition within the sctp_mt_check() function in Netfilter subsystem in Linux kernel. A local user with CAP_NET_ADMIN capability can trigger an out-of-bounds read error and read contents of memory on the system.

Remediation

Install update from vendor's website.

References

• https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2023-1760