Huawei EulerOS: CVE-2022-48757: kernel security update

Huawei EulerOS: CVE-2022-48757: kernel security update

Severity

4

CVSS

(AV:L/AC:M/Au:N/C:P/I:P/A:P)

Published

06/20/2024

Created

10/09/2024

Added

10/08/2024

Modified

01/14/2025

Description

In the Linux kernel, the following vulnerability has been resolved: net: fix information leakage in /proc/net/ptype In one net namespace, after creating a packet socket without binding it to a device, users in other net namespaces can observe the new `packet_type` added by this packet socket by reading `/proc/net/ptype` file. This is minor information leakage as packet socket is namespace aware. Add a net pointer in `packet_type` to keep the net namespace of of corresponding packet socket. In `ptype_seq_show`, this net pointer must be checked when it is not NULL.

Solution(s)

• huawei-euleros-2_0_sp10-upgrade-kernel
• huawei-euleros-2_0_sp10-upgrade-kernel-abi-stablelists
• huawei-euleros-2_0_sp10-upgrade-kernel-tools
• huawei-euleros-2_0_sp10-upgrade-kernel-tools-libs
• huawei-euleros-2_0_sp10-upgrade-python3-perf

References

• https://attackerkb.com/topics/cve-2022-48757
• CVE - 2022-48757
• EulerOS-SA-2025-1007