diff options
Diffstat (limited to 'meta/recipes-support/aspell/files/CVE-2019-25051.patch')
-rw-r--r-- | meta/recipes-support/aspell/files/CVE-2019-25051.patch | 101 |
1 files changed, 0 insertions, 101 deletions
diff --git a/meta/recipes-support/aspell/files/CVE-2019-25051.patch b/meta/recipes-support/aspell/files/CVE-2019-25051.patch deleted file mode 100644 index 8513f6de79..0000000000 --- a/meta/recipes-support/aspell/files/CVE-2019-25051.patch +++ /dev/null @@ -1,101 +0,0 @@ -From 0718b375425aad8e54e1150313b862e4c6fd324a Mon Sep 17 00:00:00 2001 -From: Kevin Atkinson <kevina@gnu.org> -Date: Sat, 21 Dec 2019 20:32:47 +0000 -Subject: [PATCH] objstack: assert that the alloc size will fit within a chunk - to prevent a buffer overflow - -Bug found using OSS-Fuze. - -Upstream-Status: Backport -[https://github.com/gnuaspell/aspell/commit/0718b375425aad8e54e1150313b862e4c6fd324a] -CVE: CVE-2019-25051 -Signed-off-by: Chee Yang Lee <chee.yang.lee@intel.com> ---- - common/objstack.hpp | 18 ++++++++++++++---- - 1 file changed, 14 insertions(+), 4 deletions(-) - -diff --git a/common/objstack.hpp b/common/objstack.hpp -index 3997bf7..bd97ccd 100644 ---- a/common/objstack.hpp -+++ b/common/objstack.hpp -@@ -5,6 +5,7 @@ - #include "parm_string.hpp" - #include <stdlib.h> - #include <assert.h> -+#include <stddef.h> - - namespace acommon { - -@@ -26,6 +27,12 @@ class ObjStack - byte * temp_end; - void setup_chunk(); - void new_chunk(); -+ bool will_overflow(size_t sz) const { -+ return offsetof(Node,data) + sz > chunk_size; -+ } -+ void check_size(size_t sz) { -+ assert(!will_overflow(sz)); -+ } - - ObjStack(const ObjStack &); - void operator=(const ObjStack &); -@@ -56,7 +63,7 @@ class ObjStack - void * alloc_bottom(size_t size) { - byte * tmp = bottom; - bottom += size; -- if (bottom > top) {new_chunk(); tmp = bottom; bottom += size;} -+ if (bottom > top) {check_size(size); new_chunk(); tmp = bottom; bottom += size;} - return tmp; - } - // This alloc_bottom will insure that the object is aligned based on the -@@ -66,7 +73,7 @@ class ObjStack - align_bottom(align); - byte * tmp = bottom; - bottom += size; -- if (bottom > top) {new_chunk(); goto loop;} -+ if (bottom > top) {check_size(size); new_chunk(); goto loop;} - return tmp; - } - char * dup_bottom(ParmString str) { -@@ -79,7 +86,7 @@ class ObjStack - // always be aligned as such. - void * alloc_top(size_t size) { - top -= size; -- if (top < bottom) {new_chunk(); top -= size;} -+ if (top < bottom) {check_size(size); new_chunk(); top -= size;} - return top; - } - // This alloc_top will insure that the object is aligned based on -@@ -88,7 +95,7 @@ class ObjStack - {loop: - top -= size; - align_top(align); -- if (top < bottom) {new_chunk(); goto loop;} -+ if (top < bottom) {check_size(size); new_chunk(); goto loop;} - return top; - } - char * dup_top(ParmString str) { -@@ -117,6 +124,7 @@ class ObjStack - void * alloc_temp(size_t size) { - temp_end = bottom + size; - if (temp_end > top) { -+ check_size(size); - new_chunk(); - temp_end = bottom + size; - } -@@ -131,6 +139,7 @@ class ObjStack - } else { - size_t s = temp_end - bottom; - byte * p = bottom; -+ check_size(size); - new_chunk(); - memcpy(bottom, p, s); - temp_end = bottom + size; -@@ -150,6 +159,7 @@ class ObjStack - } else { - size_t s = temp_end - bottom; - byte * p = bottom; -+ check_size(size); - new_chunk(); - memcpy(bottom, p, s); - temp_end = bottom + size; |