From 27528d48e1f2a10b42ae6c9918f449b0c0911fa9 Mon Sep 17 00:00:00 2001 From: Rosen Penev Date: Mon, 15 Oct 2018 10:17:29 -0700 Subject: tools: patch: Add missing CVE-2018-6951 fix uscan reports a new CVE now that PKG_CPE_ID was added. Reordered patches by date. Signed-off-by: Rosen Penev [re-title commit & refresh patches] Signed-off-by: Kevin Darbyshire-Bryant (backported from a6bd9d0cb652686453604b762e80a35d023908c4) --- tools/patch/Makefile | 2 +- tools/patch/patches/010-CVE-2018-1000156.patch | 145 ------------------------- tools/patch/patches/010-CVE-2018-6951.patch | 24 ++++ tools/patch/patches/020-CVE-2018-1000156.patch | 142 ++++++++++++++++++++++++ tools/patch/patches/020-CVE-2018-6952.patch | 25 ----- tools/patch/patches/030-CVE-2018-6952.patch | 25 +++++ 6 files changed, 192 insertions(+), 171 deletions(-) delete mode 100644 tools/patch/patches/010-CVE-2018-1000156.patch create mode 100644 tools/patch/patches/010-CVE-2018-6951.patch create mode 100644 tools/patch/patches/020-CVE-2018-1000156.patch delete mode 100644 tools/patch/patches/020-CVE-2018-6952.patch create mode 100644 tools/patch/patches/030-CVE-2018-6952.patch (limited to 'tools') diff --git a/tools/patch/Makefile b/tools/patch/Makefile index 0f4d7f0326..7323b5b2ab 100644 --- a/tools/patch/Makefile +++ b/tools/patch/Makefile @@ -8,7 +8,7 @@ include $(TOPDIR)/rules.mk PKG_NAME:=patch PKG_VERSION:=2.7.6 -PKG_RELEASE:=2 +PKG_RELEASE:=3 PKG_CPE_ID:=cpe:/a:gnu:patch PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz diff --git a/tools/patch/patches/010-CVE-2018-1000156.patch b/tools/patch/patches/010-CVE-2018-1000156.patch deleted file mode 100644 index 7114f82e8f..0000000000 --- a/tools/patch/patches/010-CVE-2018-1000156.patch +++ /dev/null @@ -1,145 +0,0 @@ -From ee2904728eb4364a36d62d66f723d0b68749e5df Mon Sep 17 00:00:00 2001 -From: Andreas Gruenbacher -Date: Fri, 6 Apr 2018 12:14:49 +0200 -Subject: [PATCH] Fix arbitrary command execution in ed-style patches - (CVE-2018-1000156) - -* src/pch.c (do_ed_script): Write ed script to a temporary file instead -of piping it to ed: this will cause ed to abort on invalid commands -instead of rejecting them and carrying on. -* tests/ed-style: New test case. -* tests/Makefile.am (TESTS): Add test case. ---- - src/pch.c | 89 +++++++++++++++++++++++++++++++++++------------ - tests/Makefile.am | 1 + - tests/ed-style | 41 ++++++++++++++++++++++ - 3 files changed, 108 insertions(+), 23 deletions(-) - create mode 100644 tests/ed-style - ---- a/src/pch.c -+++ b/src/pch.c -@@ -33,6 +33,7 @@ - # include - #endif - #include -+#include - - #define INITHUNKMAX 125 /* initial dynamic allocation size */ - -@@ -2388,22 +2389,28 @@ do_ed_script (char const *inname, char c - static char const editor_program[] = EDITOR_PROGRAM; - - file_offset beginning_of_this_line; -- FILE *pipefp = 0; - size_t chars_read; -+ FILE *tmpfp = 0; -+ char const *tmpname; -+ int tmpfd; -+ pid_t pid; -+ -+ if (! dry_run && ! skip_rest_of_patch) -+ { -+ /* Write ed script to a temporary file. This causes ed to abort on -+ invalid commands such as when line numbers or ranges exceed the -+ number of available lines. When ed reads from a pipe, it rejects -+ invalid commands and treats the next line as a new command, which -+ can lead to arbitrary command execution. */ -+ -+ tmpfd = make_tempfile (&tmpname, 'e', NULL, O_RDWR | O_BINARY, 0); -+ if (tmpfd == -1) -+ pfatal ("Can't create temporary file %s", quotearg (tmpname)); -+ tmpfp = fdopen (tmpfd, "w+b"); -+ if (! tmpfp) -+ pfatal ("Can't open stream for file %s", quotearg (tmpname)); -+ } - -- if (! dry_run && ! skip_rest_of_patch) { -- int exclusive = *outname_needs_removal ? 0 : O_EXCL; -- assert (! inerrno); -- *outname_needs_removal = true; -- copy_file (inname, outname, 0, exclusive, instat.st_mode, true); -- sprintf (buf, "%s %s%s", editor_program, -- verbosity == VERBOSE ? "" : "- ", -- outname); -- fflush (stdout); -- pipefp = popen(buf, binary_transput ? "wb" : "w"); -- if (!pipefp) -- pfatal ("Can't open pipe to %s", quotearg (buf)); -- } - for (;;) { - char ed_command_letter; - beginning_of_this_line = file_tell (pfp); -@@ -2414,14 +2421,14 @@ do_ed_script (char const *inname, char c - } - ed_command_letter = get_ed_command_letter (buf); - if (ed_command_letter) { -- if (pipefp) -- if (! fwrite (buf, sizeof *buf, chars_read, pipefp)) -+ if (tmpfp) -+ if (! fwrite (buf, sizeof *buf, chars_read, tmpfp)) - write_fatal (); - if (ed_command_letter != 'd' && ed_command_letter != 's') { - p_pass_comments_through = true; - while ((chars_read = get_line ()) != 0) { -- if (pipefp) -- if (! fwrite (buf, sizeof *buf, chars_read, pipefp)) -+ if (tmpfp) -+ if (! fwrite (buf, sizeof *buf, chars_read, tmpfp)) - write_fatal (); - if (chars_read == 2 && strEQ (buf, ".\n")) - break; -@@ -2434,13 +2441,49 @@ do_ed_script (char const *inname, char c - break; - } - } -- if (!pipefp) -+ if (!tmpfp) - return; -- if (fwrite ("w\nq\n", sizeof (char), (size_t) 4, pipefp) == 0 -- || fflush (pipefp) != 0) -+ if (fwrite ("w\nq\n", sizeof (char), (size_t) 4, tmpfp) == 0 -+ || fflush (tmpfp) != 0) - write_fatal (); -- if (pclose (pipefp) != 0) -- fatal ("%s FAILED", editor_program); -+ -+ if (lseek (tmpfd, 0, SEEK_SET) == -1) -+ pfatal ("Can't rewind to the beginning of file %s", quotearg (tmpname)); -+ -+ if (! dry_run && ! skip_rest_of_patch) { -+ int exclusive = *outname_needs_removal ? 0 : O_EXCL; -+ *outname_needs_removal = true; -+ if (inerrno != ENOENT) -+ { -+ *outname_needs_removal = true; -+ copy_file (inname, outname, 0, exclusive, instat.st_mode, true); -+ } -+ sprintf (buf, "%s %s%s", editor_program, -+ verbosity == VERBOSE ? "" : "- ", -+ outname); -+ fflush (stdout); -+ -+ pid = fork(); -+ if (pid == -1) -+ pfatal ("Can't fork"); -+ else if (pid == 0) -+ { -+ dup2 (tmpfd, 0); -+ execl ("/bin/sh", "sh", "-c", buf, (char *) 0); -+ _exit (2); -+ } -+ else -+ { -+ int wstatus; -+ if (waitpid (pid, &wstatus, 0) == -1 -+ || ! WIFEXITED (wstatus) -+ || WEXITSTATUS (wstatus) != 0) -+ fatal ("%s FAILED", editor_program); -+ } -+ } -+ -+ fclose (tmpfp); -+ safe_unlink (tmpname); - - if (ofp) - { diff --git a/tools/patch/patches/010-CVE-2018-6951.patch b/tools/patch/patches/010-CVE-2018-6951.patch new file mode 100644 index 0000000000..10dc568099 --- /dev/null +++ b/tools/patch/patches/010-CVE-2018-6951.patch @@ -0,0 +1,24 @@ +From 1f7853c05f9949d81da9be7a02b90cc64284d1f8 Mon Sep 17 00:00:00 2001 +From: Andreas Gruenbacher +Date: Mon, 12 Feb 2018 16:48:24 +0100 +Subject: [PATCH] Fix segfault with mangled rename patch + +http://savannah.gnu.org/bugs/?53132 +* src/pch.c (intuit_diff_type): Ensure that two filenames are specified +for renames and copies (fix the existing check). +--- + src/pch.c | 3 ++- + 1 file changed, 2 insertions(+), 1 deletion(-) + +--- a/src/pch.c ++++ b/src/pch.c +@@ -974,7 +974,8 @@ intuit_diff_type (bool need_header, mode + if ((pch_rename () || pch_copy ()) + && ! inname + && ! ((i == OLD || i == NEW) && +- p_name[! reverse] && ++ p_name[reverse] && p_name[! reverse] && ++ name_is_valid (p_name[reverse]) && + name_is_valid (p_name[! reverse]))) + { + say ("Cannot %s file without two valid file names\n", pch_rename () ? "rename" : "copy"); diff --git a/tools/patch/patches/020-CVE-2018-1000156.patch b/tools/patch/patches/020-CVE-2018-1000156.patch new file mode 100644 index 0000000000..99dfe54075 --- /dev/null +++ b/tools/patch/patches/020-CVE-2018-1000156.patch @@ -0,0 +1,142 @@ +From b3a0ca3deed00334f9feece43f76776b6a168e47 Mon Sep 17 00:00:00 2001 +From: Andreas Gruenbacher +Date: Fri, 6 Apr 2018 12:14:49 +0200 +Subject: [PATCH] Fix arbitrary command execution in ed-style patches + (CVE-2018-1000156) + +* src/pch.c (do_ed_script): Write ed script to a temporary file instead +of piping it to ed: this will cause ed to abort on invalid commands +instead of rejecting them and carrying on. +* tests/ed-style: New test case. +* tests/Makefile.am (TESTS): Add test case. +--- + src/pch.c | 89 +++++++++++++++++++++++++++++++++++++++++-------------- + 1 file changed, 66 insertions(+), 23 deletions(-) + +--- a/src/pch.c ++++ b/src/pch.c +@@ -33,6 +33,7 @@ + # include + #endif + #include ++#include + + #define INITHUNKMAX 125 /* initial dynamic allocation size */ + +@@ -2389,22 +2390,28 @@ do_ed_script (char const *inname, char c + static char const editor_program[] = EDITOR_PROGRAM; + + file_offset beginning_of_this_line; +- FILE *pipefp = 0; + size_t chars_read; ++ FILE *tmpfp = 0; ++ char const *tmpname; ++ int tmpfd; ++ pid_t pid; ++ ++ if (! dry_run && ! skip_rest_of_patch) ++ { ++ /* Write ed script to a temporary file. This causes ed to abort on ++ invalid commands such as when line numbers or ranges exceed the ++ number of available lines. When ed reads from a pipe, it rejects ++ invalid commands and treats the next line as a new command, which ++ can lead to arbitrary command execution. */ ++ ++ tmpfd = make_tempfile (&tmpname, 'e', NULL, O_RDWR | O_BINARY, 0); ++ if (tmpfd == -1) ++ pfatal ("Can't create temporary file %s", quotearg (tmpname)); ++ tmpfp = fdopen (tmpfd, "w+b"); ++ if (! tmpfp) ++ pfatal ("Can't open stream for file %s", quotearg (tmpname)); ++ } + +- if (! dry_run && ! skip_rest_of_patch) { +- int exclusive = *outname_needs_removal ? 0 : O_EXCL; +- assert (! inerrno); +- *outname_needs_removal = true; +- copy_file (inname, outname, 0, exclusive, instat.st_mode, true); +- sprintf (buf, "%s %s%s", editor_program, +- verbosity == VERBOSE ? "" : "- ", +- outname); +- fflush (stdout); +- pipefp = popen(buf, binary_transput ? "wb" : "w"); +- if (!pipefp) +- pfatal ("Can't open pipe to %s", quotearg (buf)); +- } + for (;;) { + char ed_command_letter; + beginning_of_this_line = file_tell (pfp); +@@ -2415,14 +2422,14 @@ do_ed_script (char const *inname, char c + } + ed_command_letter = get_ed_command_letter (buf); + if (ed_command_letter) { +- if (pipefp) +- if (! fwrite (buf, sizeof *buf, chars_read, pipefp)) ++ if (tmpfp) ++ if (! fwrite (buf, sizeof *buf, chars_read, tmpfp)) + write_fatal (); + if (ed_command_letter != 'd' && ed_command_letter != 's') { + p_pass_comments_through = true; + while ((chars_read = get_line ()) != 0) { +- if (pipefp) +- if (! fwrite (buf, sizeof *buf, chars_read, pipefp)) ++ if (tmpfp) ++ if (! fwrite (buf, sizeof *buf, chars_read, tmpfp)) + write_fatal (); + if (chars_read == 2 && strEQ (buf, ".\n")) + break; +@@ -2435,13 +2442,49 @@ do_ed_script (char const *inname, char c + break; + } + } +- if (!pipefp) ++ if (!tmpfp) + return; +- if (fwrite ("w\nq\n", sizeof (char), (size_t) 4, pipefp) == 0 +- || fflush (pipefp) != 0) ++ if (fwrite ("w\nq\n", sizeof (char), (size_t) 4, tmpfp) == 0 ++ || fflush (tmpfp) != 0) + write_fatal (); +- if (pclose (pipefp) != 0) +- fatal ("%s FAILED", editor_program); ++ ++ if (lseek (tmpfd, 0, SEEK_SET) == -1) ++ pfatal ("Can't rewind to the beginning of file %s", quotearg (tmpname)); ++ ++ if (! dry_run && ! skip_rest_of_patch) { ++ int exclusive = *outname_needs_removal ? 0 : O_EXCL; ++ *outname_needs_removal = true; ++ if (inerrno != ENOENT) ++ { ++ *outname_needs_removal = true; ++ copy_file (inname, outname, 0, exclusive, instat.st_mode, true); ++ } ++ sprintf (buf, "%s %s%s", editor_program, ++ verbosity == VERBOSE ? "" : "- ", ++ outname); ++ fflush (stdout); ++ ++ pid = fork(); ++ if (pid == -1) ++ pfatal ("Can't fork"); ++ else if (pid == 0) ++ { ++ dup2 (tmpfd, 0); ++ execl ("/bin/sh", "sh", "-c", buf, (char *) 0); ++ _exit (2); ++ } ++ else ++ { ++ int wstatus; ++ if (waitpid (pid, &wstatus, 0) == -1 ++ || ! WIFEXITED (wstatus) ++ || WEXITSTATUS (wstatus) != 0) ++ fatal ("%s FAILED", editor_program); ++ } ++ } ++ ++ fclose (tmpfp); ++ safe_unlink (tmpname); + + if (ofp) + { diff --git a/tools/patch/patches/020-CVE-2018-6952.patch b/tools/patch/patches/020-CVE-2018-6952.patch deleted file mode 100644 index e72a8cbc27..0000000000 --- a/tools/patch/patches/020-CVE-2018-6952.patch +++ /dev/null @@ -1,25 +0,0 @@ -From daa51e492049d9fe3ac049165ec19641bf19cd7f Mon Sep 17 00:00:00 2001 -From: Andreas Gruenbacher -Date: Fri, 17 Aug 2018 13:35:40 +0200 -Subject: [PATCH] Fix swapping fake lines in pch_swap - -* src/pch.c (pch_swap): Fix swapping p_bfake and p_efake when there is a -blank line in the middle of a context-diff hunk: that empty line stays -in the middle of the hunk and isn't swapped. - -Fixes: https://savannah.gnu.org/bugs/index.php?53133 ---- - src/pch.c | 2 +- - 1 file changed, 1 insertion(+), 1 deletion(-) - ---- a/src/pch.c -+++ b/src/pch.c -@@ -2114,7 +2114,7 @@ pch_swap (void) - } - if (p_efake >= 0) { /* fix non-freeable ptr range */ - if (p_efake <= i) -- n = p_end - i + 1; -+ n = p_end - p_ptrn_lines; - else - n = -i; - p_efake += n; diff --git a/tools/patch/patches/030-CVE-2018-6952.patch b/tools/patch/patches/030-CVE-2018-6952.patch new file mode 100644 index 0000000000..36b58c79dd --- /dev/null +++ b/tools/patch/patches/030-CVE-2018-6952.patch @@ -0,0 +1,25 @@ +From df40f2ea17254de269a3624319a12a93a4e395ff Mon Sep 17 00:00:00 2001 +From: Andreas Gruenbacher +Date: Fri, 17 Aug 2018 13:35:40 +0200 +Subject: [PATCH] Fix swapping fake lines in pch_swap + +* src/pch.c (pch_swap): Fix swapping p_bfake and p_efake when there is a +blank line in the middle of a context-diff hunk: that empty line stays +in the middle of the hunk and isn't swapped. + +Fixes: https://savannah.gnu.org/bugs/index.php?53133 +--- + src/pch.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +--- a/src/pch.c ++++ b/src/pch.c +@@ -2115,7 +2115,7 @@ pch_swap (void) + } + if (p_efake >= 0) { /* fix non-freeable ptr range */ + if (p_efake <= i) +- n = p_end - i + 1; ++ n = p_end - p_ptrn_lines; + else + n = -i; + p_efake += n; -- cgit v1.2.3