Race condition in Linux kernel - CVE-2022-44032

Vulnerability identifier: #VU77323

CSH Severity: Low

CVSS v4: 7 [CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2022-44032

CWE-ID: CWE-362

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows an attacker to escalate privileges on the system.

The vulnerability exists due to a race condition in drivers/char/pcmcia/cm4000_cs.c in Linux kernel. An attacker with physical access to device can remove the PCMCIA device while calling open() to trigger a use-after-free error and execute arbitrary code on the system.

Linux kernel
SUSE Linux Enterprise Server
kernel-default
kernel-default-base
kernel-default-devel
kernel-ec2
kernel-ec2-base
kernel-ec2-devel
kernel-source
kernel-syms
kernel-trace
kernel-trace-base
kernel-trace-devel
kernel-xen
kernel-xen-base
kernel-xen-devel

Install updates from vendor's website.

kernel-default - update to 3.0.101-108.138.1
kernel-default-base - update to 3.0.101-108.138.1
kernel-default-devel - update to 3.0.101-108.138.1
kernel-ec2 - update to 3.0.101-108.138.1
kernel-ec2-base - update to 3.0.101-108.138.1
kernel-ec2-devel - update to 3.0.101-108.138.1
kernel-source - update to 3.0.101-108.138.1
kernel-syms - update to 3.0.101-108.138.1
kernel-trace - update to 3.0.101-108.138.1
kernel-trace-base - update to 3.0.101-108.138.1
kernel-trace-devel - update to 3.0.101-108.138.1
kernel-xen - update to 3.0.101-108.138.1
kernel-xen-base - update to 3.0.101-108.138.1
kernel-xen-devel - update to 3.0.101-108.138.1

• https://lore.kernel.org/lkml/20220915020834.GA110086@ubuntu/
• https://lore.kernel.org/lkml/20220919040701.GA302806@ubuntu/

• Privilege escalation in Linux kernel PCMCIA
• SUSE update for the Linux Kernel