Red Hat Enterprise Linux 7.6 Update Services for SAP Solutions update for kpatch-patch

1) Use-after-free

EUVDB-ID: #VU64668

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2022-32250

CWE-ID:

Exploit availability:

Description

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

The vulnerability exists due to a use-after-free incorrect NFT_STATEFUL_EXPR in net/netfilter/nf_tables_api.c in Linux kernel. A local user with ability to create user/net namespaces can execute arbitrary code with root privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

kpatch-patch-3_10_0-957_92_1 (Red Hat package): 1-1.el7

kpatch-patch-3_10_0-957_88_1 (Red Hat package): 1-1.el7 - 1-2.el7

kpatch-patch-3_10_0-957_84_1 (Red Hat package): 1-1.el7 - 1-4.el7

kpatch-patch-3_10_0-957_80_1 (Red Hat package): 1-1.el7 - 1-5.el7

Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions: 7.6

Red Hat Enterprise Linux Server - AUS: 7.6

kpatch-patch-3_10_0-957_94_1 (Red Hat package): before 1-1.el7

Fixed software versions

CPE2.3

• cpe:2.3:o:red_hat:kpatch-patch-3_10_0-957_92_1:1-1.el7:*:*:*:*:red_hat_enterprise_linux:*:*

External links

http://access.redhat.com/errata/RHSA-2022:5804

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?