CVE-2020-1730

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Summary

CVECVE-2020-1730
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-04-13 19:15:00 UTC
Updated2023-11-07 03:19:00 UTC
DescriptionA flaw was found in libssh versions before 0.8.9 and before 0.9.4 in the way it handled AES-CTR (or DES ciphers if enabled) ciphers. The server or client could crash when the connection hasn't been fully initialized and the system tries to cleanup the ciphers when closing the connection. The biggest threat from this vulnerability is system availability.

Risk And Classification

Problem Types: CWE-476

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Canonical Ubuntu Linux 18.04 All All All
Operating System Canonical Ubuntu Linux 19.10 All All All
Operating System Fedoraproject Fedora 31 All All All
Operating System Fedoraproject Fedora 32 All All All
Operating System Fedoraproject Fedora 32 All All All
Application Libssh Libssh All All All All
Application Libssh Libssh All All All All
Application Netapp Cloud Backup - All All All
Application Oracle Mysql Workbench All All All All
Operating System Redhat Enterprise Linux 8.0 All All All
Operating System Redhat Enterprise Linux 8.0 All All All

References

ReferenceSourceLinkTags
[SECURITY] Fedora 31 Update: libssh-0.9.4-2.fc31 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org Mailing List, Third Party Advisory
[SECURITY] Fedora 31 Update: libssh-0.9.4-2.fc31 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
CVE-2020-1730 Libssh Vulnerability in NetApp Products | NetApp Product Security CONFIRM security.netapp.com Third Party Advisory
Oracle Critical Patch Update Advisory - October 2020 MISC www.oracle.com
www.libssh.org/security/advisories/CVE-2020-1730.txt MISC www.libssh.org Vendor Advisory
1801998 – (CVE-2020-1730) CVE-2020-1730 libssh: denial of service when handling AES-CTR (or DES) ciphers CONFIRM bugzilla.redhat.com Issue Tracking, Third Party Advisory
[SECURITY] Fedora 32 Update: libssh-0.9.4-2.fc32 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
USN-4327-1: libssh vulnerability | Ubuntu security notices | Ubuntu UBUNTU usn.ubuntu.com Third Party Advisory
[SECURITY] Fedora 32 Update: libssh-0.9.4-2.fc32 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org Mailing List, Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 377559 Alibaba Cloud Linux Security Update for libssh (ALINUX3-SA-2022:0067)
  • 501063 Alpine Linux Security Update for libssh
  • 755806 SUSE Enterprise Linux Security Update for libssh (SUSE-SU-2024:0539-1)
  • 770068 Red Hat OpenShift Container Platform 4.6 Security Update (RHSA-2021:0436)
  • 940406 AlmaLinux Security Update for libssh (ALSA-2020:4545)
  • 960879 Rocky Linux Security Update for libssh (RLSA-2020:4545)
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