SB2025101786 - openEuler 22.03 LTS SP4 update for kernel

Description

This security bulletin contains information about 3 vulnerabilities.

1) Buffer overflow (CVE-ID: CVE-2022-50410)

CWE-ID: CWE-119 - Memory corruption

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

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

The vulnerability exists due to memory corruption within the nfsd_proc_read() function in fs/nfsd/nfsproc.c. A local user can escalate privileges on the system.

2) Out-of-bounds read (CVE-ID: CVE-2025-39683)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

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

The vulnerability exists due to an out-of-bounds read error within the trace_get_user() function in kernel/trace/trace.c. A local user can perform a denial of service (DoS) attack.

3) NULL pointer dereference (CVE-ID: CVE-2025-39850)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

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

The vulnerability exists due to NULL pointer dereference within the arp_reduce() and neigh_reduce() functions in drivers/net/vxlan/vxlan_core.c. A local user can perform a denial of service (DoS) attack.

Remediation

Install update from vendor's website.

References

• https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2025-2470