#VU91090 Out-of-bounds read in Linux kernel - CVE-2021-47308
Published: June 4, 2024 / Updated: May 13, 2025
Vulnerability identifier: #VU91090
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-2021-47308
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 fc_rport_prli_resp() function in drivers/scsi/libfc/fc_rport.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/44651522941c623e20882b3b443f23f77de1ea8b
- https://git.kernel.org/stable/c/4921b1618045ffab71b1050bf0014df3313a2289
- https://git.kernel.org/stable/c/0fe70c15f9435bb3c50954778245d62ee38b0e03
- https://git.kernel.org/stable/c/a4a54c54af2516caa9c145015844543cfc84316a
- https://git.kernel.org/stable/c/8511293e643a18b248510ae5734e4f360754348c
- https://git.kernel.org/stable/c/b27c4577557045f1ab3cdfeabfc7f3cd24aca1fe
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.241
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.199
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.53
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.5
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.135