CVE-2021-20177

Summary

CVECVE-2021-20177
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-05-26 21:15:00 UTC
Updated2021-06-02 21:02:00 UTC
DescriptionA flaw was found in the Linux kernel's implementation of string matching within a packet. A privileged user (with root or CAP_NET_ADMIN) when inserting iptables rules could insert a rule which can panic the system. Kernel before kernel 5.5-rc1 is affected.

Risk And Classification

Problem Types: CWE-125

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

References

ReferenceSourceLinkTags
1914719 – (CVE-2021-20177) CVE-2021-20177 kernel: iptables string match rule could result in kernel panic MISC bugzilla.redhat.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 179792 Debian Security Update for linux (CVE-2021-20177)
  • 670345 EulerOS Security Update for kernel (EulerOS-SA-2021-1879)
  • 670375 EulerOS Security Update for kernel (EulerOS-SA-2021-1950)
  • 750373 OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2021:0241-1)
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