It was discovered that specially crafted regular expressions involving
codepoints greater than 255 could cause a buffer overflow in the PCRE
library (CVE-2008-0674).
For the old stable distribution (sarge), this problem has been fixed in
version 4.5+7.4-2.
For the stable distribution (etch), this problem has been fixed in
version 6.7+7.4-3.
For the unstable distribution (sid), this problem has been fixed in version
7.6-1.
We recommend that you upgrade your pcre3 package.