The compile_regex function in pcre_compile.c in PCRE prior to 8.38 and pcre2_compile.c in PCRE2 prior to 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 malicious users 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.
| Vulnerable Product | Search on Vulmon | Subscribe to Product |
|---|---|---|
pcre perl compatible regular expression library |
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