CVE-2019-5544
CRITICAL severity · CVSS 9.8 · Out-of-bounds write · actively exploited (CISA KEV)
9.8CVSS CRITICAL ● exploited ⚠ ransomware
🔴 Actively exploited in the wild (CISA Known Exploited Vulnerabilities).
⚠ Known use in ransomware campaigns. Added to KEV 2021-11-03. US federal agencies must patch by 2022-05-03.
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)92%
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products we track (1)
Recommendation
This vulnerability is being actively exploited in the wild — patch affected products urgently. Open any affected product above for its exact safe version.
Official patch: http://www.vmware.com/security/advisories/VMSA-2019-0022.html ↗
Additional information
- NVD record
- http://www.vmware.com/security/advisories/VMSA-2019-0022.htmlPatch
- http://www.openwall.com/lists/oss-security/2019/12/10/2Advisory
- http://www.openwall.com/lists/oss-security/2019/12/11/2Advisory
- https://access.redhat.com/errata/RHSA-2019:4240Advisory
- https://access.redhat.com/errata/RHSA-2020:0199Advisory
- 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/202005-12Advisory