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.

References

• https://nvd.nist.gov/vuln/detail/CVE-2019-5544
• https://access.redhat.com/errata/RHSA-2019:4240
• https://access.redhat.com/errata/RHSA-2020:0199
• 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://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://lists.fedoraproject.org/archives/list/[email protected]/message/DA3LYAJ2NRKMOZLZOQNDJ5TNQRFMWGHF
• https://lists.fedoraproject.org/archives/list/[email protected]/message/ZPXXJZLPLAQULBCJVI5NNWZ3PGWXGXWG