CVE-2021-45402

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Summary

CVECVE-2021-45402
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2022-02-11 15:15:00 UTC
Updated2022-02-23 18:12:00 UTC
DescriptionThe 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."

Risk And Classification

Problem Types: CWE-668

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All
Operating System Linux Linux Kernel 5.16 rc1 All All
Operating System Linux Linux Kernel 5.16 rc2 All All
Operating System Linux Linux Kernel 5.16 rc3 All All
Operating System Linux Linux Kernel 5.16 rc4 All All
Operating System Linux Linux Kernel 5.16 rc5 All All

References

ReferenceSourceLinkTags
kernel/git/netdev/net.git - Netdev Group's networking tree MISC git.kernel.org
kernel/git/netdev/net.git - Netdev Group's networking tree MISC git.kernel.org
kernel/git/netdev/net.git - Netdev Group's networking tree MISC git.kernel.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 179507 Debian Security Update for linux (CVE-2021-45402)
  • 198708 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5337-1)
  • 198731 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5368-1)
  • 376925 Alibaba Cloud Linux Security Update for cloud-kernel (ALINUX3-SA-2022:0125)
  • 377124 Alibaba Cloud Linux Security Update for cloud-kernel (ALINUX3-SA-2022:0029)
  • 751952 OpenSUSE Security Update for Linux Kernel (openSUSE-SU-2022:1039-1)
  • 752016 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:1039-1)
  • 752370 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:2520-1)
  • 753148 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:2615-1)
  • 753348 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:1038-1)
  • 753417 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:1163-1)
  • 900711 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (8609)
  • 901652 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (8605-1)
  • 905964 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (8609-1)
  • 906435 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (8605-2)
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