From 6c73ef37bd3aa2cbd25493f241cac4107522067c Mon Sep 17 00:00:00 2001 From: Bernd Kuhls Date: Sat, 28 Sep 2019 11:01:33 +0200 Subject: [PATCH] package/exim: add upstream security fix Fixes CVE-2019-16928: https://lists.exim.org/lurker/message/20190928.003428.2b4c81a7.en.html Signed-off-by: Bernd Kuhls Signed-off-by: Thomas Petazzoni --- ...ix-buffer-overflow-in-string_vformat.patch | 44 +++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 package/exim/0006-Fix-buffer-overflow-in-string_vformat.patch diff --git a/package/exim/0006-Fix-buffer-overflow-in-string_vformat.patch b/package/exim/0006-Fix-buffer-overflow-in-string_vformat.patch new file mode 100644 index 0000000000..5b022e2fc3 --- /dev/null +++ b/package/exim/0006-Fix-buffer-overflow-in-string_vformat.patch @@ -0,0 +1,44 @@ +From 478effbfd9c3cc5a627fc671d4bf94d13670d65f Mon Sep 17 00:00:00 2001 +From: Jeremy Harris +Date: Fri, 27 Sep 2019 12:21:49 +0100 +Subject: [PATCH] Fix buffer overflow in string_vformat. Bug 2449 + +Fixes CVE-2019-16928: +https://lists.exim.org/lurker/message/20190928.003428.2b4c81a7.en.html + +Downloaded from upstream commit +https://git.exim.org/exim.git/patch/478effbfd9c3cc5a627fc671d4bf94d13670d65f + +[adjusted patch of string.c and removed patches for test/] +Signed-off-by: Bernd Kuhls +--- + src/string.c | 4 ++-- + scripts/0000-Basic/0214 | 11 +++++++++++ + stdout/0214 | 7 +++++++ + 3 files changed, 20 insertions(+), 2 deletions(-) + +diff --git a/src/src/string.c b/src/src/string.c +index c6549bf..3445f8a 100644 +--- a/src/string.c ++++ b/src/string.c +@@ -1132,7 +1132,7 @@ store_reset(g->s + (g->size = g->ptr + 1)); + Arguments: + g the growable-string + p current end of data +- count amount to grow by ++ count amount to grow by, offset from p + */ + + static void +@@ -1590,7 +1590,7 @@ while (*fp) + } + else if (g->ptr >= lim - width) + { +- gstring_grow(g, g->ptr, width - (lim - g->ptr)); ++ gstring_grow(g, g->ptr, width); + lim = g->size - 1; + gp = CS g->s + g->ptr; + } +-- +1.9.1 + -- 2.30.2