CVE-2021-4209

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Summary

CVECVE-2021-4209
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2022-08-24 16:15:00 UTC
Updated2022-10-27 16:57:00 UTC
DescriptionA NULL pointer dereference flaw was found in GnuTLS. As Nettle's hash update functions internally call memcpy, providing zero-length input may cause undefined behavior. This flaw leads to a denial of service after authentication in rare circumstances.

Risk And Classification

Problem Types: CWE-476

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Gnu Gnutls All All All All
Application Netapp Active Iq Unified Manager - All All All
Application Netapp Hci Bootstrap Os - All All All
Hardware Netapp Hci Compute Node - All All All
Application Netapp Solidfire Hci Management Node - All All All
Operating System Redhat Enterprise Linux 8.0 All All All

References

ReferenceSourceLinkTags
Null pointer dereference in MD_UPDATE (#1306) · Issues · gnutls / GnuTLS · GitLab MISC gitlab.com
Red Hat Customer Portal - Access to 24x7 support and knowledge MISC access.redhat.com
wrap_nettle_hash_fast: avoid calling _update with zero-length input (!1503) · Merge requests · gnutls / GnuTLS · GitLab MISC gitlab.com
CVE-2021-4209 GnuTLS Vulnerability in NetApp Products | NetApp Product Security CONFIRM security.netapp.com
wrap_nettle_hash_fast: avoid calling _update with zero-length input (3db35273) · Commits · gnutls / GnuTLS · GitLab MISC gitlab.com
2044156 – (CVE-2021-4209) CVE-2021-4209 GnuTLS: Null pointer dereference in MD_UPDATE 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

  • 180842 Debian Security Update for gnutls28 (CVE-2021-4209)
  • 180936 Debian Security Update for gnutls28 (DLA 3070-1)
  • 198887 Ubuntu Security Notification for GnuTLS Vulnerabilities (USN-5550-1)
  • 591406 Siemens SIMATIC S7-1500 CPU GNU/Linux subsystem Multiple Vulnerabilities (SSB-439005, ICSA-22-104-13)
  • 672285 EulerOS Security Update for gnutls (EulerOS-SA-2022-2650)
  • 672289 EulerOS Security Update for gnutls (EulerOS-SA-2022-2682)
  • 672333 EulerOS Security Update for gnutls (EulerOS-SA-2022-2730)
  • 672364 EulerOS Security Update for gnutls (EulerOS-SA-2022-2765)
  • 672584 EulerOS Security Update for gnutls (EulerOS-SA-2023-1316)
  • 672721 EulerOS Security Update for gnutls (EulerOS-SA-2023-1504)
  • 751774 SUSE Enterprise Linux Security Update for gnutls (SUSE-SU-2022:0678-1)
  • 751775 SUSE Enterprise Linux Security Update for gnutls (SUSE-SU-2022:0677-1)
  • 751813 OpenSUSE Security Update for gnutls (openSUSE-SU-2022:0717-1)
  • 752000 SUSE Enterprise Linux Security Update for gnutls (SUSE-SU-2022:0717-1)
  • 752481 SUSE Enterprise Linux Security Update for gnutls (SUSE-SU-2022:2830-1)
  • 903766 Common Base Linux Mariner (CBL-Mariner) Security Update for gnutls (10700)
  • 904180 Common Base Linux Mariner (CBL-Mariner) Security Update for gnutls (10700-1)
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