diff options
Diffstat (limited to 'main/libsoup/CVE-2017-2885.patch')
| -rw-r--r-- | main/libsoup/CVE-2017-2885.patch | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/main/libsoup/CVE-2017-2885.patch b/main/libsoup/CVE-2017-2885.patch new file mode 100644 index 0000000000..c22616ad5b --- /dev/null +++ b/main/libsoup/CVE-2017-2885.patch @@ -0,0 +1,57 @@ +From 03c91c76daf70ee227f38304c5e45a155f45073d Mon Sep 17 00:00:00 2001 +From: Dan Winship <danw@gnome.org> +Date: Thu, 3 Aug 2017 09:56:43 -0400 +Subject: Fix chunked decoding buffer overrun (CVE-2017-2885) + +https://bugzilla.gnome.org/show_bug.cgi?id=785774 +--- + libsoup/soup-filter-input-stream.c | 22 +++++++++++----------- + 1 file changed, 11 insertions(+), 11 deletions(-) + +diff --git a/libsoup/soup-filter-input-stream.c b/libsoup/soup-filter-input-stream.c +index cde4d12..2c30bf9 100644 +--- a/libsoup/soup-filter-input-stream.c ++++ b/libsoup/soup-filter-input-stream.c +@@ -198,7 +198,7 @@ soup_filter_input_stream_read_until (SoupFilterInputStream *fstream, + GCancellable *cancellable, + GError **error) + { +- gssize nread; ++ gssize nread, read_length; + guint8 *p, *buf, *end; + gboolean eof = FALSE; + GError *my_error = NULL; +@@ -251,10 +251,11 @@ soup_filter_input_stream_read_until (SoupFilterInputStream *fstream, + } else + buf = fstream->priv->buf->data; + +- /* Scan for the boundary */ +- end = buf + fstream->priv->buf->len; +- if (!eof) +- end -= boundary_length; ++ /* Scan for the boundary within the range we can possibly return. */ ++ if (include_boundary) ++ end = buf + MIN (fstream->priv->buf->len, length) - boundary_length; ++ else ++ end = buf + MIN (fstream->priv->buf->len - boundary_length, length); + for (p = buf; p <= end; p++) { + if (*p == *(guint8*)boundary && + !memcmp (p, boundary, boundary_length)) { +@@ -268,10 +269,9 @@ soup_filter_input_stream_read_until (SoupFilterInputStream *fstream, + if (!*got_boundary && fstream->priv->buf->len < length && !eof) + goto fill_buffer; + +- /* Return everything up to 'p' (which is either just after the boundary if +- * include_boundary is TRUE, just before the boundary if include_boundary is +- * FALSE, @boundary_len - 1 bytes before the end of the buffer, or end-of- +- * file). +- */ +- return read_from_buf (fstream, buffer, p - buf); ++ if (eof && !*got_boundary) ++ read_length = MIN (fstream->priv->buf->len, length); ++ else ++ read_length = p - buf; ++ return read_from_buf (fstream, buffer, read_length); + } +-- +cgit v0.12 |