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| author | Leo Famulari <leo@famulari.name> | 2017-01-10 15:27:44 -0500 |
|---|---|---|
| committer | Leo Famulari <leo@famulari.name> | 2017-01-10 17:52:42 -0500 |
| commit | b0a567640cf66f396de3fb4a827f9cf8a7ee0abb (patch) | |
| tree | a6afe95b3cd1034bbb050f00aa1bb372c40edad6 | |
| parent | 4b96149d8b199048aa526159120d14a44d6ee054 (diff) | |
| download | guix-b0a567640cf66f396de3fb4a827f9cf8a7ee0abb.tar.gz | |
gnu: cracklib: Fix buffer overflow.
* gnu/packages/patches/cracklib-fix-buffer-overflow.patch: New file. * gnu/local.mk (dist_patch_DATA): Add it. * gnu/packages/password-utils.scm (cracklib)[source]: Use it.
| -rw-r--r-- | gnu/local.mk | 1 | ||||
| -rw-r--r-- | gnu/packages/password-utils.scm | 3 | ||||
| -rw-r--r-- | gnu/packages/patches/cracklib-fix-buffer-overflow.patch | 39 |
3 files changed, 42 insertions, 1 deletions
diff --git a/gnu/local.mk b/gnu/local.mk index e34ae17796..21580a3870 100644 --- a/gnu/local.mk +++ b/gnu/local.mk @@ -511,6 +511,7 @@ dist_patch_DATA = \ %D%/packages/patches/cpio-CVE-2016-2037.patch \ %D%/packages/patches/cpufrequtils-fix-aclocal.patch \ %D%/packages/patches/cracklib-CVE-2016-6318.patch \ + %D%/packages/patches/cracklib-fix-buffer-overflow.patch \ %D%/packages/patches/crda-optional-gcrypt.patch \ %D%/packages/patches/crossmap-allow-system-pysam.patch \ %D%/packages/patches/csound-header-ordering.patch \ diff --git a/gnu/packages/password-utils.scm b/gnu/packages/password-utils.scm index f8111b2abf..cb8dacc3ea 100644 --- a/gnu/packages/password-utils.scm +++ b/gnu/packages/password-utils.scm @@ -173,7 +173,8 @@ and vice versa.") (uri (string-append "https://github.com/cracklib/cracklib/" "releases/download/" name "-" version "/" name "-" version ".tar.gz")) - (patches (search-patches "cracklib-CVE-2016-6318.patch")) + (patches (search-patches "cracklib-CVE-2016-6318.patch" + "cracklib-fix-buffer-overflow.patch")) (sha256 (base32 "0hrkb0prf7n92w6rxgq0ilzkk6rkhpys2cfqkrbzswp27na7dkqp")))) 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++) |