PT-2021-8033 · Linux+2 · Linux Kernel+2

Ricardo Ribalda · Published 2021-04-06 · Updated 2024-08-19 · CVE-2021-46943

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 the set fmt error handling in the Linux kernel's intel-ipu3 driver. If an error occurs during a set fmt, the previous sizes are overwritten with the invalid config, leading to v4l2-compliance allocating 4GiB of RAM and causing out-of-memory errors. This can result in a general protection fault. The vulnerability may allow an attacker to impact the confidentiality, integrity, and availability of protected information.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Weakness Enumeration

CWE-131

Related Identifiers

BDU:2024-03689

CVE-2021-46943

OPENSUSE-SU-2024_1489-1

SUSE-SU-2024:1454-1

SUSE-SU-2024:1465-1

SUSE-SU-2024:1489-1

Affected Products

Astra Linux

Linux Kernel

Suse

References · 349

• https://osv.dev/vulnerability/SUSE-SU-2024:1489-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2021-46943 · Vendor Advisory
• https://git.kernel.org/stable/c/c6b81b897f6f9445d57f8d47c4e060ec21556137 · Patch
• https://wiki.astralinux.ru/astra-linux-se81-bulletin-20241206SE81 · Vendor Advisory
• https://git.kernel.org/stable/c/ad91849996f9dd79741a961fd03585a683b08356 · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-46943 · Vendor Advisory
• https://git.kernel.org/stable/c/34892ea938387d83ffcfb7775ec55f0f80767916 · Patch
• https://cve.org/CVERecord?id=CVE-2021-46943 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-46943 · Vendor Advisory
• https://git.kernel.org/stable/c/6fb617e37a39db0a3eca4489431359d0bdf3b9bc · Patch
• https://osv.dev/vulnerability/CVE-2021-46943 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-46943 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2024:1465-1 · Vendor Advisory
• https://git.kernel.org/stable/c/a03fb1e8a110658215a4cefc3e2ad53279e496a6 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2024:1454-1 · Vendor Advisory