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libarchive
CVE-2017-14502.patch
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File CVE-2017-14502.patch of Package libarchive
commit 5562545b5562f6d12a4ef991fae158bf4ccf92b6 Author: Joerg Sonnenberger <joerg@bec.de> Date: Sat Sep 9 17:47:32 2017 +0200 Avoid a read off-by-one error for UTF16 names in RAR archives. Reported-By: OSS-Fuzz issue 573 diff --git a/libarchive/archive_read_support_format_rar.c b/libarchive/archive_read_support_format_rar.c index cbb14c32..751de697 100644 --- a/libarchive/archive_read_support_format_rar.c +++ b/libarchive/archive_read_support_format_rar.c @@ -1496,7 +1496,11 @@ read_header(struct archive_read *a, struct archive_entry *entry, return (ARCHIVE_FATAL); } filename[filename_size++] = '\0'; - filename[filename_size++] = '\0'; + /* + * Do not increment filename_size here as the computations below + * add the space for the terminating NUL explicitly. + */ + filename[filename_size] = '\0'; /* Decoded unicode form is UTF-16BE, so we have to update a string * conversion object for it. */
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