GLSA-200808-09 : OpenLDAP: Denial of Service vulnerability
Medium Nessus Plugin ID 33855
SynopsisThe remote Gentoo host is missing one or more security-related patches.
DescriptionThe remote host is affected by the vulnerability described in GLSA-200808-09 (OpenLDAP: Denial of Service vulnerability)
Cameron Hotchkies discovered an error within the parsing of ASN.1 BER encoded packets in the 'ber_get_next()' function in libraries/liblber/io.c.
A remote unauthenticated attacker can send a specially crafted ASN.1 BER encoded packet which will trigger the error and cause an 'assert()', terminating the 'slapd' daemon.
There is no known workaround at this time.
SolutionAll OpenLDAP users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=net-nds/openldap-2.3.43'