contrib/slapd-modules/nops/nops.c in OpenLDAP through 2.4.45, when both the nops module and the memberof overlay are enabled, attempts to free a buffer that was allocated on the stack, which allows remote attackers to cause a denial of service (slapd crash) via a member MODDN operation.
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
| Link | Tags |
|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00053.html | mailing list third party advisory vendor advisory |
| http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00058.html | mailing list third party advisory vendor advisory |
| https://www.oracle.com/security-alerts/cpuapr2022.html | third party advisory patch |
| http://www.openldap.org/its/index.cgi/Incoming?id=8759 | issue tracking vendor advisory |
| https://kc.mcafee.com/corporate/index?page=content&id=SB10365 | third party advisory |