CVE-2021-3420

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Summary

CVECVE-2021-3420
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-03-05 21:15:00 UTC
Updated2023-11-07 03:37:00 UTC
DescriptionA flaw was found in newlib in versions prior to 4.0.0. Improper overflow validation in the memory allocation functions mEMALIGn, pvALLOc, nano_memalign, nano_valloc, nano_pvalloc could case an integer overflow, leading to an allocation of a small buffer and then to a heap-based buffer overflow.

Risk And Classification

Problem Types: CWE-190

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Fedoraproject Fedora 32 All All All
Operating System Fedoraproject Fedora 33 All All All
Operating System Fedoraproject Fedora 34 All All All
Operating System Fedoraproject Fedora 33 All All All
Application Newlib Project Newlib All All All All
Application Newlib Project Newlib All All All All

References

ReferenceSourceLinkTags
[SECURITY] Fedora 32 Update: arm-none-eabi-newlib-4.1.0-1.fc32 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
[SECURITY] Fedora 32 Update: arm-none-eabi-newlib-4.1.0-1.fc32 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
[SECURITY] Fedora 34 Update: arm-none-eabi-newlib-4.1.0-1.fc34 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
[SECURITY] Fedora 34 Update: arm-none-eabi-newlib-4.1.0-1.fc34 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
[SECURITY] Fedora 33 Update: arm-none-eabi-newlib-4.1.0-1.fc33 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
[SECURITY] Fedora 33 Update: arm-none-eabi-newlib-4.1.0-1.fc33 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
1934088 – (CVE-2021-3420) CVE-2021-3420 newlib: improper validation in memory allocation functions could lead to heap-based buffer overflow MISC bugzilla.redhat.com Broken Link, Issue Tracking, Patch, Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 180040 Debian Security Update for picolibc (CVE-2021-3420)
  • 281555 Fedora Security Update for arm (FEDORA-2021-267c08cc40)
  • 281556 Fedora Security Update for arm (FEDORA-2021-0fa2f42d3c)
  • 281557 Fedora Security Update for arm (FEDORA-2021-332fb9c796)
  • 501883 Alpine Linux Security Update for newlib
  • 505089 Alpine Linux Security Update for newlib

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