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gstreamer1.0-plugins-base: fix CVE-2025-47806

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Upstream-Status: Backport from https://gitlab.freedesktop.org/gstreamer/gstreamer/-/commit/da4380c4df0e00f8d0bad569927bfc7ea35ec37d

(From OE-Core rev: fbe8dd2aa6160530b84d3a174f3f8fc14f9fbab5)

Signed-off-by: Hitendra Prajapati <hprajapati@mvista.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>
This commit is contained in:
Hitendra Prajapati
2025-08-14 10:10:00 +05:30
committed by Steve Sakoman
parent ba10ae532a
commit 1db6ffa609
2 changed files with 51 additions and 0 deletions
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meta/recipes-multimedia/gstreamer/gstreamer1.0-plugins-base/CVE-2025-47806.patch
+50
View File
@@ -0,0 +1,50 @@
From da4380c4df0e00f8d0bad569927bfc7ea35ec37d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20Dr=C3=B6ge?= <sebastian@centricular.com>
Date: Thu, 8 May 2025 12:46:40 +0300
Subject: [PATCH] subparse: Make sure that subrip time string is not too long
before zero-padding
Fixes https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/4419
Fixes CVE-2025-47806
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/9135>
CVE: CVE-2025-47806
Upstream-Status: Backport [https://gitlab.freedesktop.org/gstreamer/gstreamer/-/commit/da4380c4df0e00f8d0bad569927bfc7ea35ec37d]
Signed-off-by: Hitendra Prajapati <hprajapati@mvista.com>
---
gst/subparse/gstsubparse.c | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/gst/subparse/gstsubparse.c b/gst/subparse/gstsubparse.c
index 4ea4ec6..035068d 100644
--- a/gst/subparse/gstsubparse.c
+++ b/gst/subparse/gstsubparse.c
@@ -850,7 +850,7 @@ parse_subrip_time (const gchar * ts_string, GstClockTime * t)
g_strdelimit (s, " ", '0');
g_strdelimit (s, ".", ',');
- /* make sure we have exactly three digits after he comma */
+ /* make sure we have exactly three digits after the comma */
p = strchr (s, ',');
if (p == NULL) {
/* If there isn't a ',' the timestamp is broken */
@@ -859,6 +859,15 @@ parse_subrip_time (const gchar * ts_string, GstClockTime * t)
return FALSE;
}
+ /* Check if the comma is too far into the string to avoid
+ * stack overflow when zero-padding the sub-second part.
+ *
+ * Allow for 3 digits of hours just in case. */
+ if ((p - s) > sizeof ("hhh:mm:ss,")) {
+ GST_WARNING ("failed to parse subrip timestamp string '%s'", s);
+ return FALSE;
+ }
+
++p;
len = strlen (p);
if (len > 3) {
--
2.50.1
meta/recipes-multimedia/gstreamer/gstreamer1.0-plugins-base_1.22.12.bb
+1
View File
@@ -20,6 +20,7 @@ SRC_URI = "https://gstreamer.freedesktop.org/src/gst-plugins-base/gst-plugins-ba
file://0011-discoverer-Don-t-print-channel-layout-for-more-than-.patch \ file://0011-discoverer-Don-t-print-channel-layout-for-more-than-.patch \
file://0012-subparse-Check-for-NULL-return-of-strchr-when-parsin.patch \ file://0012-subparse-Check-for-NULL-return-of-strchr-when-parsin.patch \
file://CVE-2025-47808.patch \ file://CVE-2025-47808.patch \
file://CVE-2025-47806.patch \
" "
SRC_URI[sha256sum] = "73cfadc3a6ffe77ed974cfd6fb391c605e4531f48db21dd6b9f42b8cb69bd8c1" SRC_URI[sha256sum] = "73cfadc3a6ffe77ed974cfd6fb391c605e4531f48db21dd6b9f42b8cb69bd8c1"