SB2022040207 - openEuler update for kernel

Description

This security bulletin contains information about 4 secuirty vulnerabilities.

1) Buffer overflow (CVE-ID: CVE-2022-26490)

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

The vulnerability exists due to a boundary error within the st21nfca_connectivity_event_received() function in drivers/nfc/st21nfca/se.c in Linux kernel. A local user can run a specially crafted program to trigger buffer overflow and execute arbitrary code with elevated privileges.

2) Memory leak (CVE-ID: CVE-2022-0854)

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

The vulnerability exists due memory leak in the Linux kernel’s DMA subsystem when processing DMA_FROM_DEVICE calls. A local user can trigger a memory leak error and read random memory from the kernel space.

3) Information disclosure (CVE-ID: CVE-2022-0494)

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

The vulnerability exists due to excessive data output in the scsi_ioctl() function in drivers/scsi/scsi_ioctl.c in the Linux kernel. A local user with a special user privilege (CAP_SYS_ADMIN or CAP_SYS_RAWIO) can gain unauthorized access to sensitive information on the system.

4) Heap-based buffer overflow (CVE-ID: CVE-2022-27666)

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

The vulnerability exists due to a boundary error within IPsec ESP transformation code in net/ipv4/esp4.c and net/ipv6/esp6.c in Linux kernel. A local unprivileged user can pass specially crafted data to the system, trigger a heap-based buffer overflow 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-2022-1604