diff options
Diffstat (limited to 'gnu/packages/patches/vte-CVE-2012-2738-pt2.patch')
| -rw-r--r-- | gnu/packages/patches/vte-CVE-2012-2738-pt2.patch | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/gnu/packages/patches/vte-CVE-2012-2738-pt2.patch b/gnu/packages/patches/vte-CVE-2012-2738-pt2.patch new file mode 100644 index 0000000000..e98fd35b95 --- /dev/null +++ b/gnu/packages/patches/vte-CVE-2012-2738-pt2.patch @@ -0,0 +1,82 @@ +From 98ce2f265f986fb88c38d508286bb5e3716b9e74 Mon Sep 17 00:00:00 2001 +From: Christian Persch <chpe@gnome.org> +Date: Sat, 19 May 2012 18:04:12 +0000 +Subject: emulation: Limit repetitions + +Don't allow malicious sequences to cause excessive repetitions. + +https://bugzilla.gnome.org/show_bug.cgi?id=676090 +--- +diff --git a/src/vteseq.c b/src/vteseq.c +index 46def5b..7fb4707 100644 +--- a/src/vteseq.c ++++ b/src/vteseq.c +@@ -1397,7 +1397,7 @@ vte_sequence_handler_dc (VteTerminal *terminal, GValueArray *params) + static void + vte_sequence_handler_DC (VteTerminal *terminal, GValueArray *params) + { +- vte_sequence_handler_multiple(terminal, params, vte_sequence_handler_dc); ++ vte_sequence_handler_multiple_r(terminal, params, vte_sequence_handler_dc); + } + + /* Delete a line at the current cursor position. */ +@@ -1790,7 +1790,7 @@ vte_sequence_handler_reverse_index (VteTerminal *terminal, GValueArray *params) + static void + vte_sequence_handler_RI (VteTerminal *terminal, GValueArray *params) + { +- vte_sequence_handler_multiple(terminal, params, vte_sequence_handler_nd); ++ vte_sequence_handler_multiple_r(terminal, params, vte_sequence_handler_nd); + } + + /* Save cursor (position). */ +@@ -2782,8 +2782,7 @@ vte_sequence_handler_insert_lines (VteTerminal *terminal, GValueArray *params) + { + GValue *value; + VteScreen *screen; +- long param, end, row; +- int i; ++ long param, end, row, i, limit; + screen = terminal->pvt->screen; + /* The default is one. */ + param = 1; +@@ -2801,7 +2800,13 @@ vte_sequence_handler_insert_lines (VteTerminal *terminal, GValueArray *params) + } else { + end = screen->insert_delta + terminal->row_count - 1; + } +- /* Insert the new lines at the cursor. */ ++ ++ /* Only allow to insert as many lines as there are between this row ++ * and the end of the scrolling region. See bug #676090. ++ */ ++ limit = end - row + 1; ++ param = MIN (param, limit); ++ + for (i = 0; i < param; i++) { + /* Clear a line off the end of the region and add one to the + * top of the region. */ +@@ -2822,8 +2827,7 @@ vte_sequence_handler_delete_lines (VteTerminal *terminal, GValueArray *params) + { + GValue *value; + VteScreen *screen; +- long param, end, row; +- int i; ++ long param, end, row, i, limit; + + screen = terminal->pvt->screen; + /* The default is one. */ +@@ -2842,6 +2846,13 @@ vte_sequence_handler_delete_lines (VteTerminal *terminal, GValueArray *params) + } else { + end = screen->insert_delta + terminal->row_count - 1; + } ++ ++ /* Only allow to delete as many lines as there are between this row ++ * and the end of the scrolling region. See bug #676090. ++ */ ++ limit = end - row + 1; ++ param = MIN (param, limit); ++ + /* Clear them from below the current cursor. */ + for (i = 0; i < param; i++) { + /* Insert a line at the end of the region and remove one from +-- +cgit v0.9.0.2 |