Package Instance

ImageMagick has uninitialized pointer dereference in JBIG decoder
An uninitialized pointer dereference vulnerability exists in the JBIG decoder due to a missing check.

ImageMagick has heap buffer overflow in WriteXWDImage due to CARD32 arithmetic overflow in bytes_per_line calculation
A 32-bit unsigned integer overflow in the XWD (X Windows) encoder can cause an undersized heap buffer allocation. When writing a extremely large image an out of bounds heap write can occur.

```
=================================================================
==741961==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x5020000083dc at pc 0x56553b4c4245 bp 0x7ffd9d20fef0 sp 0x7ffd9d20fee0
WRITE of size 1 at 0x5020000083dc thread T0
```

ImageMagick has stack write buffer overflow in MNG encoder
A stack buffer overflow vulnerability exists in the MNG encoder. There is a bounds checks missing that could corrupting the stack with attacker-controlled data.

```
==2265506==ERROR: AddressSanitizer: stack-buffer-overflow on address 0x7ffec4971310 at pc 0x55e671b8a072 bp 0x7ffec4970f70 sp 0x7ffec4970f68
WRITE of size 1 at 0x7ffec4971310 thread T0
```

ImageMagick has a heap buffer over-read via 32-bit integer overflow in MAT decoder
In MAT decoder uses 32-bit arithmetic due to incorrect parenthesization resulting in a heap over-read.

```
=================================================================
==969652==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x506000003b40 at pc 0x555557b2a926 bp 0x7fffffff4c80 sp 0x7fffffff4c70
READ of size 8 at 0x506000003b40 thread T0
```

ImageMagick has Heap Use-After-Free in ImageMagick MSL decoder
A heap use-after-free vulnerability in ImageMagick's MSL decoder allows an attacker to trigger access to freed memory by crafting an MSL file.

```
=================================================================
==1500633==ERROR: AddressSanitizer: heap-use-after-free on address 0x527000011550 at pc 0x5612583fa212 bp 0x7ffedb86d160 sp 0x7ffedb86d150
READ of size 8 at 0x527000011550 thread T0
```