PT-2022-1354 · Google+1 · Android Kernel+1

Published 2022-04-01 · Updated 2022-05-16 · CVE-2021-0707

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 Android kernel

Description The issue is related to a possible memory corruption due to a use after free in the dma buf release function of dma-buf.c. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

Recommendations For Android kernel, consider applying a patch from the upstream kernel to resolve the issue. As a temporary workaround, consider restricting access to the dma buf release function until a patch is available.

Fix

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

ASB-A-155756045

CVE-2021-0707

OPENSUSE-SU-2022_1676-1

OPENSUSE-SU-2022_1687-1

SUSE-SU-2022:1669-1

SUSE-SU-2022:1676-1

SUSE-SU-2022:1687-1

SUSE-SU-2022_1669-1

SUSE-SU-2022_1676-1

SUSE-SU-2022_1687-1

Affected Products

Android Kernel

Suse

References · 83

• https://cve.org/CVERecord?id=CVE-2021-0707 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2022:1669-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2021-0707 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2022:1687-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-0707 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-0707 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2022:1676-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-0707 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-0707 · Security Note
• https://source.android.com/security/bulletin/2022-04-01 · Vendor Advisory
• https://osv.dev/vulnerability/ASB-A-155756045 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-0707 · Vendor Advisory
• https://suse.com/support/update/announcement/2022/suse-su-20221687-1 · Note
• https://bugzilla.suse.com/1196114 · Note
• https://bugzilla.suse.com/1198825 · Note