PT-2022-4880 · Linux · Linux Kernel

Published 2022-08-24 · Updated 2022-12-08 · CVE-2022-3170

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description The issue is related to an out-of-bounds access in the Linux kernel sound subsystem, specifically with the get ctl id hash() function. This occurs when the id->name parameter does not end with a null character (0). A local user with privileges could potentially exploit this by passing a specially crafted name through the ioctl() system call, leading to a system crash or possible privilege escalation.

Recommendations For Linux kernel, as a temporary workaround, consider restricting access to the ioctl() interface until a patch is available. Avoid using the id->name parameter in the affected sound subsystem until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

AZL-10924

BDU:2022-06018

CVE-2022-3170

Affected Products

Linux Kernel

References · 16

• https://github.com/torvalds/linux/commit/5934d9a0383619c14df91af8fd76261dc3de2f5f · Patch
• https://github.com/torvalds/linux/commit/6ab55ec0a938c7f943a4edba3d6514f775983887 · Patch
• https://cve.org/CVERecord?id=CVE-2022-3170 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-3170 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-3170 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-3170 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-3170 · Vendor Advisory
• https://osv.dev/vulnerability/AZL-10924 · Vendor Advisory
• https://bdu.fstec.ru/vul/2022-06018 · Security Note
• https://git.kernel.org/linus/6ab55ec0a938c7f943a4edba3d6514f775983887 · Note
• https://vuldb.com/ru/?id.208405 · Note
• https://lore.kernel.org/all/YwjgNh%2FgkG1hH7po@kili · Note
• https://bugzilla.redhat.com/show_bug.cgi?id=2125879 · Note
• https://git.kernel.org/linus/5934d9a0383619c14df91af8fd76261dc3de2f5f · Note
• https://access.redhat.com/security/cve/cve-2022-3170 · Note