#VU63840 Code Injection in Linux kernel - CVE-2021-38300
Published: May 31, 2022
Vulnerability identifier: #VU63840
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-38300
CWE-ID: CWE-94
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 execute arbitrary code on the target system.
The vulnerability exists due to improper input validation in the arch/mips/net/bpf_jit.c in the Linux kernel. A local user can send a specially crafted request and execute arbitrary code on the target system.
Remediation
Install updates from vendor's website.
External links
- http://www.openwall.com/lists/oss-security/2021/09/15/5
- https://security.netapp.com/advisory/ntap-20211008-0003/
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=37cb28ec7d3a36a5bace7063a3dba633ab110f8b
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.10
- https://bugzilla.redhat.com/show_bug.cgi?id=2002750