PT-2021-8258 · Linux+2 · Linux Kernel+2

David Awogbemila · Published 2021-05-17 · Updated 2024-12-20 · CVE-2021-47141

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

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

Description The issue is related to a NULL pointer dereference in the Linux kernel's gve component. When freeing notification blocks, the kernel indexes priv->msix vectors. If the allocation of priv->msix vectors fails, this could lead to a NULL pointer dereference when the driver is unloaded, potentially causing a denial of service.

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

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

BDU:2025-00796

CVE-2021-47141

OPENSUSE-SU-2024_1489-1

SUSE-SU-2024:1454-1

SUSE-SU-2024:1465-1

SUSE-SU-2024:1489-1

SUSE-SU-2024:1643-1

SUSE-SU-2024:1646-1

SUSE-SU-2024:1870-1

Affected Products

Astra Linux

Linux Kernel

Suse

References · 612

• https://osv.dev/vulnerability/SUSE-SU-2024:1489-1 · Vendor Advisory
• https://git.kernel.org/stable/c/821149ee88c206fa37e79c1868cc270518484876 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2024:1646-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-47141 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-47141 · Security Note
• https://git.kernel.org/stable/c/da21a35c00ff1a1794d4f166d3b3fa8db4d0f6fb · Patch
• https://osv.dev/vulnerability/SUSE-SU-2024:1870-1 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se81-bulletin-20241206SE81 · Vendor Advisory
• https://git.kernel.org/stable/c/5218e919c8d06279884aa0baf76778a6817d5b93 · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-47141 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2024:1643-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2021-47141 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-47141 · Security Note
• https://git.kernel.org/stable/c/5278c75266c5094d3c0958793bf12fc90300e580 · Patch
• https://osv.dev/vulnerability/CVE-2021-47141 · Vendor Advisory