#VU91081 Out-of-bounds read in Linux kernel - CVE-2021-47478
Published: June 4, 2024 / Updated: May 13, 2025
Vulnerability identifier: #VU91081
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-47478
CWE-ID: CWE-125
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to an out-of-bounds read error within the isofs_read_inode() function in fs/isofs/inode.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
External links
- https://git.kernel.org/stable/c/156ce5bb6cc43a80a743810199defb1dc3f55b7f
- https://git.kernel.org/stable/c/9ec33a9b8790c212cc926a88c5e2105f97f3f57e
- https://git.kernel.org/stable/c/afbd40f425227e661d991757e11cc4db024e761f
- https://git.kernel.org/stable/c/b0ddff8d68f2e43857a84dce54c3deab181c8ae1
- https://git.kernel.org/stable/c/6e80e9314f8bb52d9eabe1907698718ff01120f5
- https://git.kernel.org/stable/c/86d4aedcbc69c0f84551fb70f953c24e396de2d7
- https://git.kernel.org/stable/c/b2fa1f52d22c5455217b294629346ad23a744945
- https://git.kernel.org/stable/c/e7fb722586a2936b37bdff096c095c30ca06404d
- https://git.kernel.org/stable/c/e96a1866b40570b5950cda8602c2819189c62a48
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.255
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.217
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.292
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.290
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.79
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.18
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.2
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.159