The compileregex function in pcrecompile.c in PCRE before 8.38 and pcre2_compile.c in PCRE2 before 10.2x mishandles the /(?J:(?|(:(?|(?'R')(\k'R')|((?'R')))H'Rk'Rf)|s(?'R'))))/ and /(?J:(?|(:(?|(?'R')(\z(?|(?'R')(\k'R')|((?'R')))k'R')|((?'R')))H'Ak'Rf)|s(?'R')))/ patterns, and related patterns with certain group references, which allows remote attackers to cause a denial of service (heap-based buffer overflow) 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": [ { "libpcre2-posix0": "10.20-3", "libpcre2-32-0": "10.20-3", "libpcre2-dev": "10.20-3", "libpcre2-32-0-dbgsym": "10.20-3", "libpcre2-16-0": "10.20-3", "libpcre2-dbg": "10.20-3", "libpcre2-16-0-dbgsym": "10.20-3", "pcre2-utils-dbgsym": "10.20-3", "libpcre2-8-0-dbgsym": "10.20-3", "libpcre2-dev-dbgsym": "10.20-3", "libpcre2-8-0": "10.20-3", "libpcre2-posix0-dbgsym": "10.20-3", "pcre2-utils": "10.20-3" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "low", "binaries": [ { "libpcre32-3": "2:8.38-3", "pcregrep-dbgsym": "2:8.38-3", "libpcre16-3": "2:8.38-3", "libpcrecpp0v5-dbgsym": "2:8.38-3", "libpcre3-dbg": "2:8.38-3", "libpcre3": "2:8.38-3", "libpcre32-3-dbgsym": "2:8.38-3", "libpcre3-udeb": "2:8.38-3", "libpcre3-dev-dbgsym": "2:8.38-3", "libpcre3-dbgsym": "2:8.38-3", "libpcre3-udeb-dbgsym": "2:8.38-3", "pcregrep": "2:8.38-3", "libpcre16-3-dbgsym": "2:8.38-3", "libpcre3-dev": "2:8.38-3", "libpcrecpp0v5": "2:8.38-3" } ] }