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Date: December 25, 2020
GNOME gdk-pixbuf (aka GdkPixbuf) before 2.42.2 allows a denial of service (infinite loop) in lzw.c in the function write_indexes. if c->self_code equals 10, self->code_table.extends will assign the value 11 to c. The next execution in the loop will assign self->code_table.extends to c, which will give the value of 10. This will make the loop run infinitely. This bug can, for example, be triggered by calling this function with a GIF image with LZW compression that is crafted in a special way.
Related Resources (5)
Weakness Type (CWE)
Loop with Unreachable Exit Condition ('Infinite Loop')CWE-835
Upgrade to version 2.42.2
|Attack Vector (AV):||LOCAL|
|Attack Complexity (AC):||LOW|
|Privileges Required (PR):||NONE|
|User Interaction (UI):||REQUIRED|
|Access Vector (AV):||NETWORK|
|Access Complexity (AC):||MEDIUM|