commit cc1fde04ad35d4df138390e04e981a04ff34073e Author: Nick Mathewson <nickm@torproject.org> Date: Mon Oct 14 11:30:00 2013 -0400 Restrict loggable date fields even harder. --- src/tlsdate-helper.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/src/tlsdate-helper.c b/src/tlsdate-helper.c index 7813158..311d374 100644 --- a/src/tlsdate-helper.c +++ b/src/tlsdate-helper.c @@ -222,7 +222,7 @@ sanitize_string(const char *s) { const unsigned char *cp; for (cp = (const unsigned char *)s; *cp; cp++) { - if (*cp < 32 || *cp > 127) + if (*cp < 32 || *cp >= 127) return "string with invalid characters"; } return s; @@ -254,6 +254,10 @@ handle_date_line(const char *dateline, uint32_t *result) return 0; dateline += 8; + if (strlen(dateline) > MAX_DATE_LINE_LEN) { + verb("V: The date line was impossibly long.\n"); + return -1; + } verb("V: The alleged date is <%s>\n", sanitize_string(dateline)); while (*dateline == ' ')