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Description: Fix segmentation faults due to non correct checking for args
Author: David Suárez <david.sephirot@gmail.com>
Origin: vendor
Bug: https://sourceforge.net/p/giflib/bugs/153/
Bug-Debian: https://bugs.debian.org/715963
Bug-Debian: https://bugs.debian.org/715964
Bug-Debian: https://bugs.debian.org/715967
Last-Update: 2020-12-20
--- a/getarg.c
+++ b/getarg.c
@@ -307,6 +307,12 @@ GAGetParmeters(void *Parameters[],
int i = 0, ScanRes;
while (!(ISSPACE(CtrlStrCopy[i]))) {
+
+ if ((*argv) == argv_end) {
+ GAErrorToken = Option;
+ return CMD_ERR_NumRead;
+ }
+
switch (CtrlStrCopy[i + 1]) {
case 'd': /* Get signed integers. */
ScanRes = sscanf(*((*argv)++), "%d",
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