114 lines
4.1 KiB
Diff
114 lines
4.1 KiB
Diff
From 8988379984e33dcc7d3aa58551db13e48755959f Mon Sep 17 00:00:00 2001
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From: Milan Crha <mcrha@redhat.com>
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Date: Thu, 15 May 2025 07:59:14 +0200
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Subject: [PATCH] soup-date-utils: Add value checks for date/time parsing
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Reject date/time when it does not represent a valid value.
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Closes https://gitlab.gnome.org/GNOME/libsoup/-/issues/448
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---
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libsoup/soup-date-utils.c | 23 +++++++++++++++--------
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tests/cookies-test.c | 10 ++++++++++
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2 files changed, 25 insertions(+), 8 deletions(-)
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diff --git a/libsoup/soup-date-utils.c b/libsoup/soup-date-utils.c
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index fd785f50..34ca9950 100644
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--- a/libsoup/soup-date-utils.c
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+++ b/libsoup/soup-date-utils.c
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@@ -129,7 +129,7 @@ parse_day (int *day, const char **date_string)
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while (*end == ' ' || *end == '-')
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end++;
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*date_string = end;
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- return TRUE;
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+ return *day >= 1 && *day <= 31;
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}
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static inline gboolean
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@@ -169,7 +169,7 @@ parse_year (int *year, const char **date_string)
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while (*end == ' ' || *end == '-')
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end++;
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*date_string = end;
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- return TRUE;
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+ return *year > 0 && *year < 9999;
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}
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static inline gboolean
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@@ -193,7 +193,7 @@ parse_time (int *hour, int *minute, int *second, const char **date_string)
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while (*p == ' ')
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p++;
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*date_string = p;
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- return TRUE;
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+ return *hour >= 0 && *hour < 24 && *minute >= 0 && *minute < 60 && *second >= 0 && *second < 60;
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}
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static inline gboolean
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@@ -209,9 +209,14 @@ parse_timezone (GTimeZone **timezone, const char **date_string)
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gulong val;
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int sign = (**date_string == '+') ? 1 : -1;
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val = strtoul (*date_string + 1, (char **)date_string, 10);
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- if (**date_string == ':')
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- val = 60 * val + strtoul (*date_string + 1, (char **)date_string, 10);
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- else
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+ if (val > 9999)
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+ return FALSE;
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+ if (**date_string == ':') {
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+ gulong val2 = strtoul (*date_string + 1, (char **)date_string, 10);
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+ if (val > 99 || val2 > 99)
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+ return FALSE;
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+ val = 60 * val + val2;
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+ } else
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val = 60 * (val / 100) + (val % 100);
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offset_minutes = sign * val;
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utc = (sign == -1) && !val;
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@@ -264,7 +269,8 @@ parse_textual_date (const char *date_string)
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if (!parse_month (&month, &date_string) ||
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!parse_day (&day, &date_string) ||
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!parse_time (&hour, &minute, &second, &date_string) ||
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- !parse_year (&year, &date_string))
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+ !parse_year (&year, &date_string) ||
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+ !g_date_valid_dmy (day, month, year))
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return NULL;
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/* There shouldn't be a timezone, but check anyway */
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@@ -276,7 +282,8 @@ parse_textual_date (const char *date_string)
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if (!parse_day (&day, &date_string) ||
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!parse_month (&month, &date_string) ||
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!parse_year (&year, &date_string) ||
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- !parse_time (&hour, &minute, &second, &date_string))
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+ !parse_time (&hour, &minute, &second, &date_string) ||
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+ !g_date_valid_dmy (day, month, year))
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return NULL;
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/* This time there *should* be a timezone, but we
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diff --git a/tests/cookies-test.c b/tests/cookies-test.c
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index 1d2d4563..ff809a40 100644
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--- a/tests/cookies-test.c
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+++ b/tests/cookies-test.c
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@@ -460,6 +460,15 @@ do_cookies_parsing_max_age_long_overflow (void)
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soup_cookie_free (cookie);
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}
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+static void
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+do_cookies_parsing_int32_overflow (void)
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+{
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+ SoupCookie *cookie = soup_cookie_parse ("Age=1;expires=3Mar9 999:9:9+ 999999999-age=main=gne=", NULL);
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+ g_assert_nonnull (cookie);
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+ g_assert_null (soup_cookie_get_expires (cookie));
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+ soup_cookie_free (cookie);
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+}
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+
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static void
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do_cookies_equal_nullpath (void)
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{
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@@ -718,6 +727,7 @@ main (int argc, char **argv)
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g_test_add_func ("/cookies/parsing/no-path-null-origin", do_cookies_parsing_nopath_nullorigin);
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g_test_add_func ("/cookies/parsing/max-age-int32-overflow", do_cookies_parsing_max_age_int32_overflow);
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g_test_add_func ("/cookies/parsing/max-age-long-overflow", do_cookies_parsing_max_age_long_overflow);
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+ g_test_add_func ("/cookies/parsing/int32-overflow", do_cookies_parsing_int32_overflow);
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g_test_add_func ("/cookies/parsing/equal-nullpath", do_cookies_equal_nullpath);
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g_test_add_func ("/cookies/parsing/control-characters", do_cookies_parsing_control_characters);
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g_test_add_func ("/cookies/parsing/name-value-max-size", do_cookies_parsing_name_value_max_size);
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--
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2.49.0
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