Photon OS 4.0: Linux PHSA-2021-4.0-0126

high Nessus Plugin ID 155326

Synopsis

The remote PhotonOS host is missing multiple security updates.

Description

An update of the linux package has been released.

- loop_rw_iter in fs/io_uring.c in the Linux kernel 5.10 through 5.14.6 allows local users to gain privileges by using IORING_OP_PROVIDE_BUFFERS to trigger a free of a kernel buffer, as demonstrated by using /proc/<pid>/maps for exploitation. (CVE-2021-41073)

- Use-after-free vulnerability in the Linux kernel exploitable by a local attacker due to reuse of a DCCP socket with an attached dccps_hc_tx_ccid object as a listener after being released. Fixed in Ubuntu Linux kernel 5.4.0-51.56, 5.3.0-68.63, 4.15.0-121.123, 4.4.0-193.224, 3.13.0.182.191 and 3.2.0-149.196.
(CVE-2020-16119)

- A race condition was discovered in ext4_write_inline_data_end in fs/ext4/inline.c in the ext4 subsystem in the Linux kernel through 5.13.13. (CVE-2021-40490)

- prealloc_elems_and_freelist in kernel/bpf/stackmap.c in the Linux kernel through 5.14.9 allows unprivileged users to trigger an eBPF multiplication integer overflow with a resultant out-of-bounds write. (CVE-2021-41864)

- An issue was discovered in aspeed_lpc_ctrl_mmap in drivers/soc/aspeed/aspeed-lpc-ctrl.c in the Linux kernel before 5.14.6. Local attackers able to access the Aspeed LPC control interface could overwrite memory in the kernel and potentially execute privileges, aka CID-b49a0e69a7b1. This occurs because a certain comparison uses values that are not memory sizes. (CVE-2021-42252)

Solution

Update the affected Linux packages.

Plugin Details

Severity: High

ID: 155326

File Name: PhotonOS_PHSA-2021-4_0-0126_linux.nasl

Version: 1.4

Type: local

Family: PhotonOS Local Security Checks

Published: 11/12/2021

Updated: 11/23/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2021-41073

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS Score Source: CVE-2021-42252

Vulnerability Information

CPE: p-cpe:/a:vmware:photonos:linux, cpe:/o:vmware:photonos:4.0

Required KB Items: Host/local_checks_enabled, Host/PhotonOS/release, Host/PhotonOS/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 11/10/2021

Vulnerability Publication Date: 10/15/2020

Reference Information

CVE: CVE-2020-16119, CVE-2021-40490, CVE-2021-41073, CVE-2021-41864, CVE-2021-42252

Detections

Analytics