PCRE before 8.38 mishandles the /(?:|a|){100}x/ pattern and related patterns, which allows remote attackers to cause a denial of service (infinite recursion) or possibly have unspecified other impact via a crafted regular expression, as demonstrated by a JavaScript RegExp object encountered by Konqueror.
{ "availability": "No subscription required", "ubuntu_priority": "low", "binaries": [ { "binary_version": "2:8.38-3", "binary_name": "libpcre16-3" }, { "binary_version": "2:8.38-3", "binary_name": "libpcre16-3-dbgsym" }, { "binary_version": "2:8.38-3", "binary_name": "libpcre3" }, { "binary_version": "2:8.38-3", "binary_name": "libpcre3-dbg" }, { "binary_version": "2:8.38-3", "binary_name": "libpcre3-dbgsym" }, { "binary_version": "2:8.38-3", "binary_name": "libpcre3-dev" }, { "binary_version": "2:8.38-3", "binary_name": "libpcre3-dev-dbgsym" }, { "binary_version": "2:8.38-3", "binary_name": "libpcre3-udeb" }, { "binary_version": "2:8.38-3", "binary_name": "libpcre3-udeb-dbgsym" }, { "binary_version": "2:8.38-3", "binary_name": "libpcre32-3" }, { "binary_version": "2:8.38-3", "binary_name": "libpcre32-3-dbgsym" }, { "binary_version": "2:8.38-3", "binary_name": "libpcrecpp0v5" }, { "binary_version": "2:8.38-3", "binary_name": "libpcrecpp0v5-dbgsym" }, { "binary_version": "2:8.38-3", "binary_name": "pcregrep" }, { "binary_version": "2:8.38-3", "binary_name": "pcregrep-dbgsym" } ] }