A stack buffer overflow flaw was found in the way 389-ds-base 1.3.6.x before 1.3.6.13, 1.3.7.x before 1.3.7.9, 1.4.x before 1.4.0.5 handled certain LDAP search filters. A remote, unauthenticated attacker could potentially use this flaw to make ns-slapd crash via a specially crafted LDAP request, thus resulting in denial of service.
The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.
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 |
|---|---|
| https://access.redhat.com/errata/RHSA-2018:0163 | patch vendor advisory |
| https://pagure.io/389-ds-base/c/6aa2acdc3cad9 | patch |
| https://bugzilla.redhat.com/show_bug.cgi?id=1531573 | patch issue tracking |
| http://www.securityfocus.com/bid/102790 | third party advisory vdb entry |
| https://lists.debian.org/debian-lts-announce/2018/07/msg00018.html | mailing list |
| http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00033.html | vendor advisory |