CVE-2020-8428

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Summary

CVECVE-2020-8428
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-01-29 00:15:00 UTC
Updated2020-06-10 20:15:00 UTC
Descriptionfs/namei.c in the Linux kernel before 5.5 has a may_create_in_sticky use-after-free, which allows local users to cause a denial of service (OOPS) or possibly obtain sensitive information from kernel memory, aka CID-d0cb50185ae9. One attack vector may be an open system call for a UNIX domain socket, if the socket is being moved to a new parent directory and its old parent directory is being removed.

Risk And Classification

Problem Types: CWE-416

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All
Operating System Linux Linux Kernel All All All All

References

ReferenceSourceLinkTags
USN-4319-1: Linux kernel vulnerabilities | Ubuntu security notices UBUNTU usn.ubuntu.com
USN-4324-1: Linux kernel vulnerabilities | Ubuntu security notices UBUNTU usn.ubuntu.com
do_last(): fetch directory ->i_mode and ->i_uid before it's too late · torvalds/linux@d0cb501 · GitHub MISC github.com Patch, Third Party Advisory
[security-announce] openSUSE-SU-2020:0336-1: important: Security update SUSE lists.opensuse.org
kernel/git/torvalds/linux.git - Linux kernel source tree MISC git.kernel.org Mailing List, Patch, Vendor Advisory
USN-4318-1: Linux kernel vulnerabilities | Ubuntu security notices UBUNTU usn.ubuntu.com
Kernel Live Patch Security Notice LSN-0065-1 ≈ Packet Storm MISC packetstormsecurity.com
oss-security - Re: Linux kernel: user-triggerable read-after-free crash or 1-bit infoleak oracle in open(2) MLIST www.openwall.com Mailing List, Third Party Advisory
oss-security - Linux kernel: user-triggerable read-after-free crash or 1-bit infoleak oracle in open(2) MISC www.openwall.com Mailing List, Third Party Advisory
Debian -- Security Information -- DSA-4667-1 linux DEBIAN www.debian.org
[SECURITY] [DLA 2242-1] linux-4.9 security update MLIST lists.debian.org
USN-4325-1: Linux kernel vulnerabilities | Ubuntu security notices UBUNTU usn.ubuntu.com
USN-4320-1: Linux kernel vulnerability | Ubuntu security notices UBUNTU usn.ubuntu.com
oss-security - Re: Linux kernel: user-triggerable read-after-free crash or 1-bit infoleak oracle in open(2) MLIST www.openwall.com
Debian -- Security Information -- DSA-4698-1 linux DEBIAN www.debian.org
February 2020 Linux Kernel Vulnerabilities in NetApp Products | NetApp Product Security CONFIRM security.netapp.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 377065 Alibaba Cloud Linux Security Update for cloud-kernel (ALINUX2-SA-2020:0113)
  • 900078 CBL-Mariner Linux Security Update for kernel 5.4.91
  • 902965 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (3460)
  • 906093 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (3460-1)
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