diff options
Diffstat (limited to 'gnu/packages/patches/cracklib-fix-buffer-overflow.patch')
| -rw-r--r-- | gnu/packages/patches/cracklib-fix-buffer-overflow.patch | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/gnu/packages/patches/cracklib-fix-buffer-overflow.patch b/gnu/packages/patches/cracklib-fix-buffer-overflow.patch new file mode 100644 index 0000000000..b1c990f282 --- /dev/null +++ b/gnu/packages/patches/cracklib-fix-buffer-overflow.patch @@ -0,0 +1,39 @@ +Fix buffer overflow processing long words in Mangle(). + +Patch adpated from upstream commit, omitting changes to 'NEWS': + +https://github.com/cracklib/cracklib/commit/33d7fa4585247cd2247a1ffa032ad245836c6edb + +From 33d7fa4585247cd2247a1ffa032ad245836c6edb Mon Sep 17 00:00:00 2001 +From: Jan Dittberner <jan@dittberner.info> +Date: Thu, 25 Aug 2016 17:17:53 +0200 +Subject: [PATCH] Fix a buffer overflow processing long words + +A buffer overflow processing long words has been discovered. This commit +applies the patch from +https://build.opensuse.org/package/view_file/Base:System/cracklib/0004-overflow-processing-long-words.patch +by Howard Guo. + +See https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=835386 and +http://www.openwall.com/lists/oss-security/2016/08/23/8 +--- + src/NEWS | 1 + + src/lib/rules.c | 5 ++--- + 2 files changed, 3 insertions(+), 3 deletions(-) + +diff --git a/src/lib/rules.c b/src/lib/rules.c +index d193cc0..3a2aa46 100644 +--- a/lib/rules.c ++++ b/lib/rules.c +@@ -434,9 +434,8 @@ Mangle(input, control) /* returns a pointer to a controlled Mangle */ + { + int limit; + register char *ptr; +- static char area[STRINGSIZE]; +- char area2[STRINGSIZE]; +- area[0] = '\0'; ++ static char area[STRINGSIZE * 2] = {0}; ++ char area2[STRINGSIZE * 2] = {0}; + strcpy(area, input); + + for (ptr = control; *ptr; ptr++) |