CVEvulnerability
CVE-2019-5544
CISA Known Exploited Vulnerability
VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow Vulnerability — VMware VMware ESXi and Horizon DaaS
VMware ESXi and Horizon Desktop as a Service (DaaS) OpenSLP contains a heap-based buffer overflow vulnerability that allows an attacker with network access to port 427 to overwrite the heap of the OpenSLP service to perform remote code execution.
- Added to KEV
- 2021-11-03
- Remediation due
- 2022-05-03
- Ransomware use
- Known
- Required action
- Apply updates per vendor instructions.
- Notes
- https://nvd.nist.gov/vuln/detail/CVE-2019-5544
- Status
- Analyzed
- Published
- 2019-12-06
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 7.5 HIGH — AV:N/AC:L/Au:N/C:P/I:P/A:P
- Weaknesses
- CWE-787
Description
OpenSLP as used in ESXi and the Horizon DaaS appliances has a heap overwrite issue. VMware has evaluated the severity of this issue to be in the Critical severity range with a maximum CVSSv3 base score of 9.8.
Affected configurations
• vmware horizon daas (>= 8.0.0 < 9.0.0.0)
• vmware esxi 6.0
• vmware esxi 6.5
• vmware esxi 6.7
• redhat enterprise linux desktop 6.0
• redhat enterprise linux desktop 7.0
• redhat enterprise linux for ibm z systems 6.0 s390x
• redhat enterprise linux for ibm z systems 7.0 s390x
• redhat enterprise linux for ibm z systems eus 7.7 s390x
• redhat enterprise linux for power big endian 6.0 ppc64
• redhat enterprise linux for power big endian 7.0 ppc64
• redhat enterprise linux for power big endian eus 7.7 ppc64
• redhat enterprise linux for power little endian 7.0 ppc64le
• redhat enterprise linux for power little endian eus 7.7 ppc64le
• redhat enterprise linux server 6.0
• redhat enterprise linux server 7.0
• redhat enterprise linux server aus 7.7
• redhat enterprise linux server eus 7.7
• redhat enterprise linux server tus 7.7
• redhat enterprise linux workstation 6.0
• redhat enterprise linux workstation 7.0
• openslp openslp (<= 2.0.0)
• fedoraproject fedora 30
• fedoraproject fedora 31
Related
Weakness · CWE (1)
- CWE-787 Out-of-bounds Write weakness
References
- http://www.openwall.com/lists/oss-security/2019/12/10/2 Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2019/12/11/2 Mailing List, Third Party Advisory
- http://www.vmware.com/security/advisories/VMSA-2019-0022.html Patch, Vendor Advisory
- https://access.redhat.com/errata/RHSA-2019:4240 Third Party Advisory
- https://access.redhat.com/errata/RHSA-2020:0199 Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DA3LYAJ2NRKMOZLZOQNDJ5TNQRFMWGHF/ Release Notes
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZPXXJZLPLAQULBCJVI5NNWZ3PGWXGXWG/ Release Notes
- https://security.gentoo.org/glsa/202005-12 Third Party Advisory
- http://www.openwall.com/lists/oss-security/2019/12/10/2 Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2019/12/11/2 Mailing List, Third Party Advisory
- http://www.vmware.com/security/advisories/VMSA-2019-0022.html Patch, Vendor Advisory
- https://access.redhat.com/errata/RHSA-2019:4240 Third Party Advisory
- https://access.redhat.com/errata/RHSA-2020:0199 Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DA3LYAJ2NRKMOZLZOQNDJ5TNQRFMWGHF/ Release Notes
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZPXXJZLPLAQULBCJVI5NNWZ3PGWXGXWG/ Release Notes
- https://security.gentoo.org/glsa/202005-12 Third Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-5544 US Government Resource