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ChangeLog for PCRE |
ChangeLog for PCRE |
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Version 8.38 xx-xxx-xxxx |
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1. If a group that contained a recursive back reference also contained a |
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forward reference subroutine call followed by a non-forward-reference |
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subroutine call, for example /.((?2)(?R)\1)()/, pcre2_compile() failed to |
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compile correct code, leading to undefined behaviour or an internally |
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detected error. This bug was discovered by the LLVM fuzzer. |
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2. Quantification of certain items (e.g. atomic back references) could cause |
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incorrect code to be compiled when recursive forward references were |
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involved. For example, in this pattern: /(?1)()((((((\1++))\x85)+)|))/. |
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This bug was discovered by the LLVM fuzzer. |
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3. A repeated conditional group whose condition was a reference by name caused |
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a buffer overflow if there was more than one group with the given name. |
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This bug was discovered by the LLVM fuzzer. |
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4. A recursive back reference by name within a group that had the same name as |
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another group caused a buffer overflow. For example: |
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/(?J)(?'d'(?'d'\g{d}))/. This bug was discovered by the LLVM fuzzer. |
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30. A forward reference by name to a group whose number is the same as the |
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current group, for example in this pattern: /(?|(\k'Pm')|(?'Pm'))/, caused |
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a buffer overflow at compile time. This bug was discovered by the LLVM |
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fuzzer. |
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Version 8.37 28-April-2015 |
Version 8.37 28-April-2015 |
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