The vulnerability of the Regex Handler component of the Exim mail server, related to memory usage after it is released, allows a attacker to cause a service failure.

The vulnerability of the Exim mail server’s Regular Expression Handler component is related to the use of memory after it is freed. Exploiting this vulnerability could allow a remote attacker to cause a service failure...

CVE-2008-1677

Buffer overflow in the regular expression handler in Red Hat Directory Server 8.0 and 7.1 before SP6 allows remote attackers to cause a denial of service slapd crash and possibly execute arbitrary code via a crafted LDAP query that triggers the overflow during translation to a regular expression...