diff options
| -rw-r--r-- | gnu/local.mk | 2 | ||||
| -rw-r--r-- | gnu/packages/base.scm | 5 | ||||
| -rw-r--r-- | gnu/packages/patches/glibc-CVE-2018-11236.patch | 149 | ||||
| -rw-r--r-- | gnu/packages/patches/glibc-CVE-2018-11237.patch | 55 |
4 files changed, 210 insertions, 1 deletions
diff --git a/gnu/local.mk b/gnu/local.mk index 3bb60d3ade..9fe34cb1dc 100644 --- a/gnu/local.mk +++ b/gnu/local.mk @@ -811,6 +811,8 @@ dist_patch_DATA = \ %D%/packages/patches/glibc-CVE-2017-1000366-pt1.patch \ %D%/packages/patches/glibc-CVE-2017-1000366-pt2.patch \ %D%/packages/patches/glibc-CVE-2017-1000366-pt3.patch \ + %D%/packages/patches/glibc-CVE-2018-11236.patch \ + %D%/packages/patches/glibc-CVE-2018-11237.patch \ %D%/packages/patches/glibc-allow-kernel-2.6.32.patch \ %D%/packages/patches/glibc-bootstrap-system.patch \ %D%/packages/patches/glibc-hidden-visibility-ldconfig.patch \ diff --git a/gnu/packages/base.scm b/gnu/packages/base.scm index 67fab7c114..db9cca6faf 100644 --- a/gnu/packages/base.scm +++ b/gnu/packages/base.scm @@ -892,7 +892,10 @@ with the Linux kernel.") "glibc-hidden-visibility-ldconfig.patch" "glibc-versioned-locpath.patch" "glibc-allow-kernel-2.6.32.patch" - "glibc-reinstate-prlimit64-fallback.patch")))))) + "glibc-reinstate-prlimit64-fallback.patch" + "glibc-CVE-2018-11236.patch" + "glibc-CVE-2018-11237.patch")))) + (properties `((lint-hidden-cve . ("CVE-2017-18269")))))) ; glibc-2.27-git-fixes (define-public glibc-2.26 (package diff --git a/gnu/packages/patches/glibc-CVE-2018-11236.patch b/gnu/packages/patches/glibc-CVE-2018-11236.patch new file mode 100644 index 0000000000..4f8a72943c --- /dev/null +++ b/gnu/packages/patches/glibc-CVE-2018-11236.patch @@ -0,0 +1,149 @@ +https://sourceware.org/git/gitweb.cgi?p=glibc.git;a=patch;h=5460617d1567657621107d895ee2dd83bc1f88f2 +with ChangeLog removed + +From 5460617d1567657621107d895ee2dd83bc1f88f2 Mon Sep 17 00:00:00 2001 +From: Paul Pluzhnikov <ppluzhnikov@google.com> +Date: Tue, 8 May 2018 18:12:41 -0700 +Subject: [PATCH] Fix BZ 22786: integer addition overflow may cause stack + buffer overflow when realpath() input length is close to SSIZE_MAX. + +2018-05-09 Paul Pluzhnikov <ppluzhnikov@google.com> + + [BZ #22786] + * stdlib/canonicalize.c (__realpath): Fix overflow in path length + computation. + * stdlib/Makefile (test-bz22786): New test. + * stdlib/test-bz22786.c: New test. +--- + ChangeLog | 8 +++++ + stdlib/Makefile | 2 +- + stdlib/canonicalize.c | 2 +- + stdlib/test-bz22786.c | 90 +++++++++++++++++++++++++++++++++++++++++++++++++++ + 4 files changed, 100 insertions(+), 2 deletions(-) + create mode 100644 stdlib/test-bz22786.c + +diff --git a/stdlib/Makefile b/stdlib/Makefile +index af1643c..1ddb1f9 100644 +--- a/stdlib/Makefile ++++ b/stdlib/Makefile +@@ -84,7 +84,7 @@ tests := tst-strtol tst-strtod testmb testrand testsort testdiv \ + tst-cxa_atexit tst-on_exit test-atexit-race \ + test-at_quick_exit-race test-cxa_atexit-race \ + test-on_exit-race test-dlclose-exit-race \ +- tst-makecontext-align ++ tst-makecontext-align test-bz22786 + + tests-internal := tst-strtod1i tst-strtod3 tst-strtod4 tst-strtod5i \ + tst-tls-atexit tst-tls-atexit-nodelete +diff --git a/stdlib/canonicalize.c b/stdlib/canonicalize.c +index 4135f3f..390fb43 100644 +--- a/stdlib/canonicalize.c ++++ b/stdlib/canonicalize.c +@@ -181,7 +181,7 @@ __realpath (const char *name, char *resolved) + extra_buf = __alloca (path_max); + + len = strlen (end); +- if ((long int) (n + len) >= path_max) ++ if (path_max - n <= len) + { + __set_errno (ENAMETOOLONG); + goto error; +diff --git a/stdlib/test-bz22786.c b/stdlib/test-bz22786.c +new file mode 100644 +index 0000000..e7837f9 +--- /dev/null ++++ b/stdlib/test-bz22786.c +@@ -0,0 +1,90 @@ ++/* Bug 22786: test for buffer overflow in realpath. ++ Copyright (C) 2018 Free Software Foundation, Inc. ++ This file is part of the GNU C Library. ++ ++ The GNU C Library is free software; you can redistribute it and/or ++ modify it under the terms of the GNU Lesser General Public ++ License as published by the Free Software Foundation; either ++ version 2.1 of the License, or (at your option) any later version. ++ ++ The GNU C Library is distributed in the hope that it will be useful, ++ but WITHOUT ANY WARRANTY; without even the implied warranty of ++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ++ Lesser General Public License for more details. ++ ++ You should have received a copy of the GNU Lesser General Public ++ License along with the GNU C Library; if not, see ++ <http://www.gnu.org/licenses/>. */ ++ ++/* This file must be run from within a directory called "stdlib". */ ++ ++#include <errno.h> ++#include <limits.h> ++#include <stdio.h> ++#include <stdlib.h> ++#include <string.h> ++#include <unistd.h> ++#include <sys/stat.h> ++#include <sys/types.h> ++#include <support/test-driver.h> ++#include <libc-diag.h> ++ ++static int ++do_test (void) ++{ ++ const char dir[] = "bz22786"; ++ const char lnk[] = "bz22786/symlink"; ++ ++ rmdir (dir); ++ if (mkdir (dir, 0755) != 0 && errno != EEXIST) ++ { ++ printf ("mkdir %s: %m\n", dir); ++ return EXIT_FAILURE; ++ } ++ if (symlink (".", lnk) != 0 && errno != EEXIST) ++ { ++ printf ("symlink (%s, %s): %m\n", dir, lnk); ++ return EXIT_FAILURE; ++ } ++ ++ const size_t path_len = (size_t) INT_MAX + 1; ++ ++ DIAG_PUSH_NEEDS_COMMENT; ++#if __GNUC_PREREQ (7, 0) ++ /* GCC 7 warns about too-large allocations; here we need such ++ allocation to succeed for the test to work. */ ++ DIAG_IGNORE_NEEDS_COMMENT (7, "-Walloc-size-larger-than="); ++#endif ++ char *path = malloc (path_len); ++ DIAG_POP_NEEDS_COMMENT; ++ ++ if (path == NULL) ++ { ++ printf ("malloc (%zu): %m\n", path_len); ++ return EXIT_UNSUPPORTED; ++ } ++ ++ /* Construct very long path = "bz22786/symlink/aaaa....." */ ++ char *p = mempcpy (path, lnk, sizeof (lnk) - 1); ++ *(p++) = '/'; ++ memset (p, 'a', path_len - (path - p) - 2); ++ p[path_len - (path - p) - 1] = '\0'; ++ ++ /* This call crashes before the fix for bz22786 on 32-bit platforms. */ ++ p = realpath (path, NULL); ++ ++ if (p != NULL || errno != ENAMETOOLONG) ++ { ++ printf ("realpath: %s (%m)", p); ++ return EXIT_FAILURE; ++ } ++ ++ /* Cleanup. */ ++ unlink (lnk); ++ rmdir (dir); ++ ++ return 0; ++} ++ ++#define TEST_FUNCTION do_test ++#include <support/test-driver.c> +-- +2.9.3 + diff --git a/gnu/packages/patches/glibc-CVE-2018-11237.patch b/gnu/packages/patches/glibc-CVE-2018-11237.patch new file mode 100644 index 0000000000..8a7c604ecd --- /dev/null +++ b/gnu/packages/patches/glibc-CVE-2018-11237.patch @@ -0,0 +1,55 @@ +https://sourceware.org/git/gitweb.cgi?p=glibc.git;a=patch;h=9aaaab7c6e4176e61c59b0a63c6ba906d875dc0e +with the ChangeLog removed + +From 9aaaab7c6e4176e61c59b0a63c6ba906d875dc0e Mon Sep 17 00:00:00 2001 +From: Andreas Schwab <schwab@suse.de> +Date: Tue, 22 May 2018 10:37:59 +0200 +Subject: [PATCH] Don't write beyond destination in + __mempcpy_avx512_no_vzeroupper (bug 23196) + +When compiled as mempcpy, the return value is the end of the destination +buffer, thus it cannot be used to refer to the start of it. +--- + ChangeLog | 9 +++++++++ + string/test-mempcpy.c | 1 + + sysdeps/x86_64/multiarch/memmove-avx512-no-vzeroupper.S | 5 +++-- + 3 files changed, 13 insertions(+), 2 deletions(-) + +diff --git a/string/test-mempcpy.c b/string/test-mempcpy.c +index c08fba8..d98ecdd 100644 +--- a/string/test-mempcpy.c ++++ b/string/test-mempcpy.c +@@ -18,6 +18,7 @@ + <http://www.gnu.org/licenses/>. */ + + #define MEMCPY_RESULT(dst, len) (dst) + (len) ++#define MIN_PAGE_SIZE 131072 + #define TEST_MAIN + #define TEST_NAME "mempcpy" + #include "test-string.h" +diff --git a/sysdeps/x86_64/multiarch/memmove-avx512-no-vzeroupper.S b/sysdeps/x86_64/multiarch/memmove-avx512-no-vzeroupper.S +index 23c0f7a..effc3ac 100644 +--- a/sysdeps/x86_64/multiarch/memmove-avx512-no-vzeroupper.S ++++ b/sysdeps/x86_64/multiarch/memmove-avx512-no-vzeroupper.S +@@ -336,6 +336,7 @@ L(preloop_large): + vmovups (%rsi), %zmm4 + vmovups 0x40(%rsi), %zmm5 + ++ mov %rdi, %r11 + /* Align destination for access with non-temporal stores in the loop. */ + mov %rdi, %r8 + and $-0x80, %rdi +@@ -366,8 +367,8 @@ L(gobble_256bytes_nt_loop): + cmp $256, %rdx + ja L(gobble_256bytes_nt_loop) + sfence +- vmovups %zmm4, (%rax) +- vmovups %zmm5, 0x40(%rax) ++ vmovups %zmm4, (%r11) ++ vmovups %zmm5, 0x40(%r11) + jmp L(check) + + L(preloop_large_bkw): +-- +2.9.3 + |