1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
|
Description: CVE-2016-2089: matrix rows_ NULL pointer dereference in jas_matrix_clip()
Origin: vendor
Bug-RedHat: https://bugzilla.redhat.com/show_bug.cgi?id=1302636
Bug-Debian: https://bugs.debian.org/812978
Forwarded: not-needed
Author: Tomas Hoger <thoger@redhat.com>
Reviewed-by: Salvatore Bonaccorso <carnil@debian.org>
Last-Update: 2016-03-05
--- a/src/libjasper/base/jas_image.c
+++ b/src/libjasper/base/jas_image.c
@@ -426,6 +426,10 @@ int jas_image_readcmpt(jas_image_t *imag
return -1;
}
+ if (!data->rows_) {
+ return -1;
+ }
+
if (jas_matrix_numrows(data) != height || jas_matrix_numcols(data) != width) {
if (jas_matrix_resize(data, height, width)) {
return -1;
@@ -479,6 +483,10 @@ int jas_image_writecmpt(jas_image_t *ima
return -1;
}
+ if (!data->rows_) {
+ return -1;
+ }
+
if (jas_matrix_numrows(data) != height || jas_matrix_numcols(data) != width) {
return -1;
}
--- a/src/libjasper/base/jas_seq.c
+++ b/src/libjasper/base/jas_seq.c
@@ -262,6 +262,10 @@ void jas_matrix_divpow2(jas_matrix_t *ma
int rowstep;
jas_seqent_t *data;
+ if (!matrix->rows_) {
+ return;
+ }
+
rowstep = jas_matrix_rowstep(matrix);
for (i = matrix->numrows_, rowstart = matrix->rows_[0]; i > 0; --i,
rowstart += rowstep) {
@@ -282,6 +286,10 @@ void jas_matrix_clip(jas_matrix_t *matri
jas_seqent_t *data;
int rowstep;
+ if (!matrix->rows_) {
+ return;
+ }
+
rowstep = jas_matrix_rowstep(matrix);
for (i = matrix->numrows_, rowstart = matrix->rows_[0]; i > 0; --i,
rowstart += rowstep) {
@@ -306,6 +314,10 @@ void jas_matrix_asr(jas_matrix_t *matrix
int rowstep;
jas_seqent_t *data;
+ if (!matrix->rows_) {
+ return;
+ }
+
assert(n >= 0);
rowstep = jas_matrix_rowstep(matrix);
for (i = matrix->numrows_, rowstart = matrix->rows_[0]; i > 0; --i,
@@ -325,6 +337,10 @@ void jas_matrix_asl(jas_matrix_t *matrix
int rowstep;
jas_seqent_t *data;
+ if (!matrix->rows_) {
+ return;
+ }
+
rowstep = jas_matrix_rowstep(matrix);
for (i = matrix->numrows_, rowstart = matrix->rows_[0]; i > 0; --i,
rowstart += rowstep) {
@@ -367,6 +383,10 @@ void jas_matrix_setall(jas_matrix_t *mat
int rowstep;
jas_seqent_t *data;
+ if (!matrix->rows_) {
+ return;
+ }
+
rowstep = jas_matrix_rowstep(matrix);
for (i = matrix->numrows_, rowstart = matrix->rows_[0]; i > 0; --i,
rowstart += rowstep) {
|
