Buffer overflow in Openslp
CVE-2019-5544
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.
Vulnerability class: Buffer Overflow
EPSS: 0.968 (99.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Openslp
- Vmware Esxi — versions 6.0, 6.5, 6.7
- Vmware Horizon_daas
- Fedoraproject Fedora — versions 30, 31
- Redhat Enterprise_linux_desktop — versions 6.0, 7.0
- Redhat Enterprise_linux_for_ibm_z_systems — versions 6.0_s390x, 7.0_s390x
- Redhat Enterprise_linux_for_ibm_z_systems_eus — versions 7.7_s390x
- Redhat Enterprise_linux_for_power_big_endian — versions 6.0_ppc64, 7.0_ppc64
- Redhat Enterprise_linux_for_power_big_endian_eus — versions 7.7_ppc64
- Redhat Enterprise_linux_for_power_little_endian — versions 7.0_ppc64le
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply updates per vendor instructions.
Known ransomware campaign use: yes.
Public proof-of-concept exploits
References
- security@vmware.com (x_refsource_CONFIRM, Patch, Vendor Advisory)
- security@vmware.com (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
- security@vmware.com (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
- security@vmware.com (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- security@vmware.com (x_refsource_FEDORA, vendor-advisory, Release Notes)
- security@vmware.com (x_refsource_FEDORA, vendor-advisory, Release Notes)
- security@vmware.com (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- security@vmware.com (vendor-advisory, Third Party Advisory, x_refsource_GENTOO)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)
Frequently asked questions
- What is CVE-2019-5544?
- CVE-2019-5544 is a critical-severity vulnerability in Openslp, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2019-12-06.
- How severe is CVE-2019-5544?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2019-5544 known to be exploited?
- Yes. CVE-2019-5544 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), indicating it is being actively exploited. 14 public proof-of-concept repositories are indexed.