CVE-2019-5544 KEV
9.8
CRITICAL · CVSS 3.1 · EPSS 97.3% (pctl 100)
Patch first
On CISA KEV — known exploited in the wild, due 2022-05-03.
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.
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 97.26% — more likely to be exploited than 100% of all CVEs |
| Weakness | CWE-787 |
| On CISA KEV | yes — remediate by 2022-05-03 |
| Public exploit | none known |
| Published | 2019-12-06 |
| Last modified | 2026-06-17 |
CISA KEV
| Name | VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow Vulnerability |
|---|---|
| Added | 2021-11-03 |
| Due | 2022-05-03 |
| Vendor / product | VMware / VMware ESXi and Horizon DaaS |
| Ransomware use | known |
Affected (16)
| Vendor | Product |
|---|---|
| fedoraproject | fedora |
| openslp | openslp |
| redhat | enterprise linux desktop |
| redhat | enterprise linux for ibm z systems |
| redhat | enterprise linux for ibm z systems eus |
| redhat | enterprise linux for power big endian |
| redhat | enterprise linux for power big endian eus |
| redhat | enterprise linux for power little endian |
| redhat | enterprise linux for power little endian eus |
| redhat | enterprise linux server |
| redhat | enterprise linux server aus |
| redhat | enterprise linux server eus |
| redhat | enterprise linux server tus |
| redhat | enterprise linux workstation |
| vmware | esxi |
| vmware | horizon daas |
References
- http://www.openwall.com/lists/oss-security/2019/12/10/2
- http://www.openwall.com/lists/oss-security/2019/12/11/2
- http://www.vmware.com/security/advisories/VMSA-2019-0022.html
- https://access.redhat.com/errata/RHSA-2019:4240
- https://access.redhat.com/errata/RHSA-2020:0199
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DA3LYAJ2NRKMOZLZOQNDJ5TNQRFMWGHF/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZPXXJZLPLAQULBCJVI5NNWZ3PGWXGXWG/
- https://security.gentoo.org/glsa/202005-12
- http://www.openwall.com/lists/oss-security/2019/12/10/2
- http://www.openwall.com/lists/oss-security/2019/12/11/2
- http://www.vmware.com/security/advisories/VMSA-2019-0022.html
- https://access.redhat.com/errata/RHSA-2019:4240
- https://access.redhat.com/errata/RHSA-2020:0199
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DA3LYAJ2NRKMOZLZOQNDJ5TNQRFMWGHF/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZPXXJZLPLAQULBCJVI5NNWZ3PGWXGXWG/
- https://security.gentoo.org/glsa/202005-12
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-5544
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