Critical severity · published Dec 6, 2019
CVE-2019-5544
VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow Vulnerability
RansomwareIn wildKEV
9.8
CVSS
98.1%
EPSS
Yes
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)98.1% · higher than 100% of CVEs
Exploited in the wildYes
CISA KEVListed Nov 3, 2021
Federal remediation dueMay 3, 2022
Ransomware campaign useKnown
Affected products
Which versions
ES
ESXi · VMware
6.0; 6.0; 6.0; 6.0; 6.0; 6.0; +34 more · source: NVD
EA
ESXi and Horizon DaaS ·
ESXi 6.7 prior to patch release ESXi670-201912001, ESXi 6.5 prior to patch release ESXi650-201912001, ESXi 6.0 prior to patch release ESXi600-201912001 and Horizon DaaS 8.x prior to BZ-2467224-Disable_SLPD_service_permanently_801_Hotfix. · source: vendor
EL
Enterprise Linux Desktop · Redhat
6.0; 7.0 · source: NVD
EL
Enterprise Linux For Ibm Z Systems · Redhat
6.0_s390x; 7.0_s390x · source: NVD
EL
Enterprise Linux For Ibm Z Systems Eus · Redhat
7.7_s390x · source: NVD
EL
Enterprise Linux For Power Big Endian · Redhat
6.0_ppc64; 7.0_ppc64 · source: NVD
EL
Enterprise Linux For Power Big Endian Eus · Redhat
7.7_ppc64 · source: NVD
EL
Enterprise Linux For Power Little Endian · Redhat
7.0_ppc64le · source: NVD
EL
Enterprise Linux For Power Little Endian Eus · Redhat
7.7_ppc64le · source: NVD
EL
Enterprise Linux Server · Redhat
6.0; 7.0 · source: NVD
EL
Enterprise Linux Server Aus · Redhat
7.7 · source: NVD
EL
Enterprise Linux Server Eus · Redhat
7.7 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-5544
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-5544
CISA KEV catalogue
https://www.cisa.gov/known-exploited-vulnerabilities-catalog
x_refsource_CONFIRM
http://www.vmware.com/security/advisories/VMSA-2019-0022.html
mailing-list
http://www.openwall.com/lists/oss-security/2019/12/10/2
mailing-list
http://www.openwall.com/lists/oss-security/2019/12/11/2
vendor-advisory
https://access.redhat.com/errata/RHSA-2019:4240
vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZPXXJZLPLAQULBCJVI5NNWZ3PGWXGXWG/
vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DA3LYAJ2NRKMOZLZOQNDJ5TNQRFMWGHF/
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