openEuler 22.03 LTS update for kernel

1) Integer overflow

EUVDB-ID: #VU67867

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-20423

CWE-ID: CWE-190 - Integer overflow

Exploit availability: No

Description

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

The vulnerability exists due to integer overflow within the rndis_set_response() function in drivers/usb/gadget/function/rndis.c in Linux kernel. A local application can trigger ab integer overflow and execute arbitrary code with elevated privileges.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 22.03 LTS

kernel-tools-debuginfo: before 5.10.0-60.61.0.88

kernel-tools-devel: before 5.10.0-60.61.0.88

python3-perf: before 5.10.0-60.61.0.88

python3-perf-debuginfo: before 5.10.0-60.61.0.88

kernel-headers: before 5.10.0-60.61.0.88

kernel-devel: before 5.10.0-60.61.0.88

perf: before 5.10.0-60.61.0.88

bpftool-debuginfo: before 5.10.0-60.61.0.88

perf-debuginfo: before 5.10.0-60.61.0.88

kernel-source: before 5.10.0-60.61.0.88

bpftool: before 5.10.0-60.61.0.88

kernel-tools: before 5.10.0-60.61.0.88

kernel-debuginfo: before 5.10.0-60.61.0.88

kernel-debugsource: before 5.10.0-60.61.0.88

kernel: before 5.10.0-60.61.0.88

External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-2027

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.