Add 0003-test-asclen-CVE-2018-19540.patch:
If txtdesc->asclen is < 1, the array index of
txtdesc->ascdata will be negative which causes the heap based overflow.
Patch was proposed upstream[1] but upstream is very inactive. Linux
distributions use the same fix to patch their packages.
1: https://github.com/mdadams/jasper/pull/198
Signed-off-by: Michael Vetter <jubalh@iodoru.org>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
