CVE-2021-27645

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Summary

CVECVE-2021-27645
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-02-24 15:15:00 UTC
Updated2023-11-07 03:31:00 UTC
DescriptionThe nameserver caching daemon (nscd) in the GNU C Library (aka glibc or libc6) 2.29 through 2.33, when processing a request for netgroup lookup, may crash due to a double-free, potentially resulting in degraded service or Denial of Service on the local system. This is related to netgroupcache.c.

Risk And Classification

Problem Types: CWE-415

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Debian Debian Linux 10.0 All All All
Operating System Fedoraproject Fedora 33 All All All
Operating System Fedoraproject Fedora 34 All All All
Application Gnu Glibc All All All All

References

ReferenceSourceLinkTags
[SECURITY] Fedora 34 Update: glibc-2.33-5.fc34 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
[SECURITY] Fedora 33 Update: glibc-2.32-6.fc33 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
27462 – (CVE-2021-27645) double-free in nscd (CVE-2021-27645) MISC sourceware.org Issue Tracking, Patch, Third Party Advisory
[SECURITY] Fedora 33 Update: glibc-2.32-6.fc33 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
[SECURITY] Fedora 34 Update: glibc-2.33-5.fc34 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
glibc: Multiple vulnerabilities (GLSA 202107-07) — Gentoo security GENTOO security.gentoo.org
[SECURITY] [DLA 3152-1] glibc security update MLIST lists.debian.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 159493 Oracle Enterprise Linux Security Update for glibc (ELSA-2021-4358)
  • 159561 Oracle Enterprise Linux Security Update for glibc (ELSA-2021-9560)
  • 179662 Debian Security Update for glibc (CVE-2021-27645)
  • 181138 Debian Security Update for glibc (DLA 3152-1)
  • 198685 Ubuntu Security Notification for GNU C Library Vulnerabilities (USN-5310-1)
  • 239791 Red Hat Update for glibc security (RHSA-2021:4358)
  • 281092 Fedora Security Update for glibc (FEDORA-2021-2ba993d6c5)
  • 281546 Fedora Security Update for glibc (FEDORA-2021-6749bfcfd9)
  • 591406 Siemens SIMATIC S7-1500 CPU GNU/Linux subsystem Multiple Vulnerabilities (SSB-439005, ICSA-22-104-13)
  • 671617 EulerOS Security Update for glibc (EulerOS-SA-2022-1565)
  • 671692 EulerOS Security Update for glibc (EulerOS-SA-2022-1724)
  • 671865 EulerOS Security Update for glibc (EulerOS-SA-2022-1889)
  • 710069 Gentoo Linux glibc Multiple vulnerabilities (GLSA 202107-07)
  • 940330 AlmaLinux Security Update for glibc (ALSA-2021:4358)
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