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| author | Efraim Flashner <efraim@flashner.co.il> | 2017-06-19 23:13:53 +0300 |
|---|---|---|
| committer | Mark H Weaver <mhw@netris.org> | 2017-06-24 02:42:37 -0400 |
| commit | 665d6a59161769e10b52ffcbcd5cd2db22f32681 (patch) | |
| tree | 0953395f1fc352e029b4c5e3cc052f1bcb9fa620 /gnu/packages/patches/glibc-CVE-2017-1000366-pt1.patch | |
| parent | 13f7f2fd2b208c29361ef2290f55911879a6adf2 (diff) | |
| download | guix-665d6a59161769e10b52ffcbcd5cd2db22f32681.tar.gz | |
gnu: glibc: Add mitigations for CVE-2017-1000366.
* gnu/packages/base.scm (glibc/linux)[replacement]: New field. (glibc-2.25-patched): New variable. (glibc-2.24, glibc-2.23, glibc-2.22, glibc-2.21)[source]: Add patches. [replacement]: New field. (glibc-locales)[replacement]: New field. * gnu/packages/patches/glibc-CVE-2017-1000366-pt1.patch, gnu/packages/patches/glibc-CVE-2017-1000366-pt2.patch, gnu/packages/patches/glibc-CVE-2017-1000366-pt3.patch: New files. * gnu/local.mk (dist_patch_DATA): Add them. Modified-By: Mark H Weaver <mhw@netris.org>
Diffstat (limited to 'gnu/packages/patches/glibc-CVE-2017-1000366-pt1.patch')
| -rw-r--r-- | gnu/packages/patches/glibc-CVE-2017-1000366-pt1.patch | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/gnu/packages/patches/glibc-CVE-2017-1000366-pt1.patch b/gnu/packages/patches/glibc-CVE-2017-1000366-pt1.patch new file mode 100644 index 0000000000..71e80968be --- /dev/null +++ b/gnu/packages/patches/glibc-CVE-2017-1000366-pt1.patch @@ -0,0 +1,36 @@ +From f6110a8fee2ca36f8e2d2abecf3cba9fa7b8ea7d Mon Sep 17 00:00:00 2001 +From: Florian Weimer <fweimer@redhat.com> +Date: Mon, 19 Jun 2017 17:09:55 +0200 +Subject: [PATCH] CVE-2017-1000366: Ignore LD_LIBRARY_PATH for AT_SECURE=1 + programs [BZ #21624] + +LD_LIBRARY_PATH can only be used to reorder system search paths, which +is not useful functionality. + +This makes an exploitable unbounded alloca in _dl_init_paths unreachable +for AT_SECURE=1 programs. + +patch from: +https://sourceware.org/git/?p=glibc.git;a=commit;h=f6110a8fee2ca36f8e2d2abecf3cba9fa7b8ea7d +--- + ChangeLog | 7 +++++++ + elf/rtld.c | 3 ++- + 2 files changed, 9 insertions(+), 1 deletion(-) + +diff --git a/elf/rtld.c b/elf/rtld.c +index 2446a87..2269dbe 100644 +--- a/elf/rtld.c ++++ b/elf/rtld.c +@@ -2422,7 +2422,8 @@ process_envvars (enum mode *modep) + + case 12: + /* The library search path. */ +- if (memcmp (envline, "LIBRARY_PATH", 12) == 0) ++ if (!__libc_enable_secure ++ && memcmp (envline, "LIBRARY_PATH", 12) == 0) + { + library_path = &envline[13]; + break; +-- +2.9.3 + |