SB2022080563 - openEuler update for kernel

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Out-of-bounds read (CVE-ID: CVE-2022-1508)

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

The vulnerability exists due to an out-of-bounds read error within the io_read() and iov_iter_reexpand() functions in fs/io_uring.c. A local user can access sensitive information or perform a denial of service (DoS) attack.

2) Out-of-bounds write (CVE-ID: CVE-2021-33655)

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

The vulnerability exists due to a boundary error in FBIOPUT_VSCREENINFO IOCTL. A local user can trigger an out-of-bounds write error and execute arbitrary code with elevated privileges.

Remediation

Install update from vendor's website.

References

• https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1802