CVE-2020-27840

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Summary

CVECVE-2020-27840
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-05-12 15:15:00 UTC
Updated2023-11-07 03:21:00 UTC
DescriptionA flaw was found in samba. Spaces used in a string around a domain name (DN), while supposed to be ignored, can cause invalid DN strings with spaces to instead write a zero-byte into out-of-bounds memory, resulting in a crash. The highest threat from this vulnerability is to system availability.

Risk And Classification

Problem Types: CWE-125

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Debian Debian Linux 10.0 All All All
Operating System Debian Debian Linux 9.0 All All All
Operating System Fedoraproject Fedora 32 All All All
Operating System Fedoraproject Fedora 33 All All All
Operating System Fedoraproject Fedora 34 All All All
Application Samba Samba All All All All

References

ReferenceSourceLinkTags
[SECURITY] Fedora 33 Update: libldb-2.2.1-1.fc33 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
1941400 – (CVE-2020-27840) CVE-2020-27840 samba: Heap corruption via crafted DN strings MISC bugzilla.redhat.com
[SECURITY] Fedora 32 Update: samba-4.12.14-0.fc32 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
[SECURITY] [DLA 2611-1] ldb security update MLIST lists.debian.org
[SECURITY] Fedora 33 Update: libldb-2.2.1-1.fc33 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
Debian -- Security Information -- DSA-4884-1 ldb DEBIAN www.debian.org
March 2021 Samba Vulnerabilities in NetApp Products | NetApp Product Security CONFIRM security.netapp.com
Samba: Multiple vulnerabilities (GLSA 202105-22) — Gentoo security GENTOO security.gentoo.org
[SECURITY] Fedora 34 Update: samba-4.14.2-0.fc34 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
[SECURITY] Fedora 32 Update: samba-4.12.14-0.fc32 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
[SECURITY] Fedora 34 Update: samba-4.14.2-0.fc34 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
Samba - Security Announcement Archive MISC www.samba.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 174841 SUSE Enterprise Linux Security update for ldb (SUSE-SU-2021:0945-1)
  • 174843 SUSE Enterprise Linux Security update for ldb (SUSE-SU-2021:0944-1)
  • 174860 SUSE Enterprise Linux Security Update for ldb (SUSE-SU-2021:0945-1)
  • 174862 SUSE Enterprise Linux Security update for ldb (SUSE-SU-2021:0944-1)
  • 174966 SUSE Enterprise Linux Security Update for samba (SUSE-SU-2021:1444-1)
  • 174982 SUSE Enterprise Linux Security Update for samba (SUSE-SU-2021:1498-1)
  • 178491 Debian Security Update for ldb (DSA 4884-1)
  • 178508 Debian Security Update for ldb (DLA 2611-1)
  • 198308 Ubuntu Security Notification for Ldb Vulnerabilities (USN-4888-1)
  • 281411 Fedora Security Update for libldb (FEDORA-2021-1a8e93a285)
  • 281412 Fedora Security Update for libldb (FEDORA-2021-c93a3a5d3f)
  • 281423 Fedora Security Update for libldb (FEDORA-2021-c2d8628d33)
  • 500625 Alpine Linux Security Update for samba
  • 501491 Alpine Linux Security Update for samba
  • 501780 Alpine Linux Security Update for samba
  • 504391 Alpine Linux Security Update for samba
  • 670411 EulerOS Security Update for samba (EulerOS-SA-2021-1988)
  • 670415 EulerOS Security Update for libldb (EulerOS-SA-2021-1984)
  • 670434 EulerOS Security Update for samba (EulerOS-SA-2021-2066)
  • 670445 EulerOS Security Update for samba (EulerOS-SA-2021-2055)
  • 670468 EulerOS Security Update for samba (EulerOS-SA-2021-2229)
  • 670469 EulerOS Security Update for libldb (EulerOS-SA-2021-2222)
  • 670639 EulerOS Security Update for libldb (EulerOS-SA-2021-2397)
  • 670688 EulerOS Security Update for samba (EulerOS-SA-2021-2446)
  • 670863 EulerOS Security Update for libldb (EulerOS-SA-2021-2591)
  • 670896 EulerOS Security Update for libldb (EulerOS-SA-2021-1984)
  • 670994 EulerOS Security Update for samba (EulerOS-SA-2021-2615)
  • 690216 Free Berkeley Software Distribution (FreeBSD) Security Update for samba (1f6d97da-8f72-11eb-b3f1-005056a311d1)
  • 710094 Gentoo Linux Samba Multiple vulnerabilities (GLSA 202105-22)
  • 750236 OpenSUSE Security Update for samba (openSUSE-SU-2021:0636-1)
  • 750299 OpenSUSE Security Update for ldb (openSUSE-SU-2021:0469-1)
  • 751157 OpenSUSE Security Update for samba (openSUSE-SU-2021:3187-1)
  • 751680 OpenSUSE Security Update for samba (openSUSE-SU-2022:0283-1)
  • 751994 SUSE Enterprise Linux Security Update for samba (SUSE-SU-2022:0283-1)
  • 901618 Common Base Linux Mariner (CBL-Mariner) Security Update for samba (7351)
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