MEDIUM 5.5 Microsoft
CVE-2021-45402
The check_alu_op() function in kernel/bpf/verifier.c in the Linux kernel through v5.16-rc5 did not properly update bounds while handling the mov32 instruction which allows local users to obtain potentially sensitive address information aka a "pointer leak."
Microsoft Security Update 2022-Feb: The check_alu_op() function in kernel/bpf/verifier.c in the Linux kernel through v5.16-rc5 did not properly update bounds while handling the mov32 instruction which allows local users to obtain potentially sensitive address information aka a "pointer leak."
Affected Products
- cm1 kernel 5.10.102.1-1 on CBL Mariner 1.0
- cbl2 kernel 5.15.26.1-1 on CBL Mariner 2.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-45402
- https://nvd.nist.gov/vuln/detail/CVE-2021-45402
This medium severity vulnerability with a CVSS score of 5.5 was published on 2022-02-08 via Microsoft. Affected: cm1 kernel 5.10.102.1-1 on CBL Mariner 1.0, cbl2 kernel 5.15.26.1-1 on CBL Mariner 2.0.
vulnfeed aggregates 10539 vulnerabilities from NVD, CISA KEV,
Ubuntu, Debian, Red Hat, Kubernetes, Exploit-DB, OSS-Security, GitHub and OpenStack — updated every 4 hours.