CVE-2021-3715

Summary

CVECVE-2021-3715
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2022-03-02 23:15:00 UTC
Updated2023-01-24 15:07:00 UTC
DescriptionA flaw was found in the "Routing decision" classifier in the Linux kernel's Traffic Control networking subsystem in the way it handled changing of classification filters, leading to a use-after-free condition. This flaw allows unprivileged local users to escalate their privileges on the system. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

Risk And Classification

Problem Types: CWE-416

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

References

ReferenceSourceLinkTags
kernel/git/torvalds/linux.git - Linux kernel source tree MISC git.kernel.org
net_sched: cls_route: remove the right filter from hashtable · torvalds/linux@ef299cc · GitHub MISC github.com
1993988 – (CVE-2021-3715) CVE-2021-3715 kernel: use-after-free in route4_change() in net/sched/cls_route.c MISC bugzilla.redhat.com
oss-security - CVE-2021-3715 Linux kernel: use-after-free in route4_change() in net/sched/cls_route.c MISC www.openwall.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 159378 Oracle Enterprise Linux Security Update for kernel (ELSA-2021-3438)
  • 159403 Oracle Enterprise Linux Security Update for Unbreakable Enterprise kernel (ELSA-2021-9459)
  • 179846 Debian Security Update for linux (CVE-2021-3715)
  • 239612 Red Hat Update for kernel (RHSA-2021:3446)
  • 239613 Red Hat Update for kernel-rt (RHSA-2021:3445)
  • 239614 Red Hat Update for kernel (RHSA-2021:3444)
  • 239615 Red Hat Update for kpatch-patch (RHSA-2021:3443)
  • 239616 Red Hat Update for kpatch-patch (RHSA-2021:3442)
  • 239617 Red Hat Update for kpatch-patch (RHSA-2021:3441)
  • 239619 Red Hat Update for kernel-rt (RHSA-2021:3439)
  • 239620 Red Hat Update for kernel (RHSA-2021:3438)
  • 257115 CentOS Security Update for kernel (CESA-2021:3438)
  • 390248 Oracle Managed Virtualization (VM) Server for x86 Security Update for kernel (OVMSA-2021-0035)
  • 610418 Google Pixel Android June 2022 Security Patch Missing
  • 610422 Google Android July 2022 Security Patch Missing for Huawei EMUI
  • 671051 EulerOS Security Update for kernel (EulerOS-SA-2021-2663)
  • 751238 SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 40 for SLE 12 SP3) (SUSE-SU-2021:3459-1)
  • 751336 OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2021:1460-1)
  • 751342 OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2021:3641-1)
  • 751346 OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2021:3655-1)
  • 751349 OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2021:1477-1)
  • 751353 OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2021:3675-1)
  • 751381 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:3748-1)
  • 751437 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:3876-1)
  • 751441 OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2021:3876-1)
  • 751451 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:3935-1)
  • 751476 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:3972-1)
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