From: Roy Li <rongqing...@windriver.com> http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2014-9636
unzip 6.0 allows remote attackers to cause a denial of service (out-of-bounds read or write and crash) via an extra field with an uncompressed size smaller than the compressed field size in a zip archive that advertises STORED method compression. http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-1315 Buffer overflow in the charset_to_intern function in unix/unix.c in Info-Zip UnZip 6.10b allows remote attackers to execute arbitrary code via a crafted string, as demonstrated by converting a string from CP866 to UTF-8. (From OE-Core rev: f86a178fd7036541a45bf31a46bddf634c133802) Signed-off-by: Roy Li <rongqing...@windriver.com> Signed-off-by: Ross Burton <ross.bur...@intel.com> Signed-off-by: Richard Purdie <richard.pur...@linuxfoundation.org> Signed-off-by: Armin Kuster <akuster...@gmail.com> --- .../06-unzip60-alt-iconv-utf8_CVE-2015-1315.patch | 402 +++++++++++++++++++++ .../unzip/unzip/unzip-6.0_overflow3.diff | 45 +++ meta/recipes-extended/unzip/unzip_6.0.bb | 5 +- 3 files changed, 451 insertions(+), 1 deletion(-) create mode 100644 meta/recipes-extended/unzip/unzip/06-unzip60-alt-iconv-utf8_CVE-2015-1315.patch create mode 100644 meta/recipes-extended/unzip/unzip/unzip-6.0_overflow3.diff diff --git a/meta/recipes-extended/unzip/unzip/06-unzip60-alt-iconv-utf8_CVE-2015-1315.patch b/meta/recipes-extended/unzip/unzip/06-unzip60-alt-iconv-utf8_CVE-2015-1315.patch new file mode 100644 index 0000000..9ba3c1d --- /dev/null +++ b/meta/recipes-extended/unzip/unzip/06-unzip60-alt-iconv-utf8_CVE-2015-1315.patch @@ -0,0 +1,402 @@ +From: Giovanni Scafora <giovanni.archlinux.org> +Subject: unzip files encoded with non-latin, non-unicode file names +Last-Update: 2015-02-11 + +Upstream-Status: Backport + +Updated 2015-02-11 by Marc Deslauriers <marc.deslauri...@canonical.com> +to fix buffer overflow in charset_to_intern() + +Signed-off-by: Marc Deslauriers <marc.deslauri...@canonical.com> + +Index: unzip-6.0/unix/unix.c +=================================================================== +--- unzip-6.0.orig/unix/unix.c 2015-02-11 08:46:43.675324290 -0500 ++++ unzip-6.0/unix/unix.c 2015-02-11 09:18:04.902081319 -0500 +@@ -30,6 +30,9 @@ + #define UNZIP_INTERNAL + #include "unzip.h" + ++#include <iconv.h> ++#include <langinfo.h> ++ + #ifdef SCO_XENIX + # define SYSNDIR + #else /* SCO Unix, AIX, DNIX, TI SysV, Coherent 4.x, ... */ +@@ -1874,3 +1877,102 @@ + } + } + #endif /* QLZIP */ ++ ++ ++typedef struct { ++ char *local_charset; ++ char *archive_charset; ++} CHARSET_MAP; ++ ++/* A mapping of local <-> archive charsets used by default to convert filenames ++ * of DOS/Windows Zip archives. Currently very basic. */ ++static CHARSET_MAP dos_charset_map[] = { ++ { "ANSI_X3.4-1968", "CP850" }, ++ { "ISO-8859-1", "CP850" }, ++ { "CP1252", "CP850" }, ++ { "UTF-8", "CP866" }, ++ { "KOI8-R", "CP866" }, ++ { "KOI8-U", "CP866" }, ++ { "ISO-8859-5", "CP866" } ++}; ++ ++char OEM_CP[MAX_CP_NAME] = ""; ++char ISO_CP[MAX_CP_NAME] = ""; ++ ++/* Try to guess the default value of OEM_CP based on the current locale. ++ * ISO_CP is left alone for now. */ ++void init_conversion_charsets() ++{ ++ const char *local_charset; ++ int i; ++ ++ /* Make a guess only if OEM_CP not already set. */ ++ if(*OEM_CP == '\0') { ++ local_charset = nl_langinfo(CODESET); ++ for(i = 0; i < sizeof(dos_charset_map)/sizeof(CHARSET_MAP); i++) ++ if(!strcasecmp(local_charset, dos_charset_map[i].local_charset)) { ++ strncpy(OEM_CP, dos_charset_map[i].archive_charset, ++ sizeof(OEM_CP)); ++ break; ++ } ++ } ++} ++ ++/* Convert a string from one encoding to the current locale using iconv(). ++ * Be as non-intrusive as possible. If error is encountered during covertion ++ * just leave the string intact. */ ++static void charset_to_intern(char *string, char *from_charset) ++{ ++ iconv_t cd; ++ char *s,*d, *buf; ++ size_t slen, dlen, buflen; ++ const char *local_charset; ++ ++ if(*from_charset == '\0') ++ return; ++ ++ buf = NULL; ++ local_charset = nl_langinfo(CODESET); ++ ++ if((cd = iconv_open(local_charset, from_charset)) == (iconv_t)-1) ++ return; ++ ++ slen = strlen(string); ++ s = string; ++ ++ /* Make sure OUTBUFSIZ + 1 never ends up smaller than FILNAMSIZ ++ * as this function also gets called with G.outbuf in fileio.c ++ */ ++ buflen = FILNAMSIZ; ++ if (OUTBUFSIZ + 1 < FILNAMSIZ) ++ { ++ buflen = OUTBUFSIZ + 1; ++ } ++ ++ d = buf = malloc(buflen); ++ if(!d) ++ goto cleanup; ++ ++ bzero(buf,buflen); ++ dlen = buflen - 1; ++ ++ if(iconv(cd, &s, &slen, &d, &dlen) == (size_t)-1) ++ goto cleanup; ++ strncpy(string, buf, buflen); ++ ++ cleanup: ++ free(buf); ++ iconv_close(cd); ++} ++ ++/* Convert a string from OEM_CP to the current locale charset. */ ++inline void oem_intern(char *string) ++{ ++ charset_to_intern(string, OEM_CP); ++} ++ ++/* Convert a string from ISO_CP to the current locale charset. */ ++inline void iso_intern(char *string) ++{ ++ charset_to_intern(string, ISO_CP); ++} +Index: unzip-6.0/unix/unxcfg.h +=================================================================== +--- unzip-6.0.orig/unix/unxcfg.h 2015-02-11 08:46:43.675324290 -0500 ++++ unzip-6.0/unix/unxcfg.h 2015-02-11 08:46:43.671324260 -0500 +@@ -228,4 +228,30 @@ + /* wild_dir, dirname, wildname, matchname[], dirnamelen, have_dirname, */ + /* and notfirstcall are used by do_wild(). */ + ++ ++#define MAX_CP_NAME 25 ++ ++#ifdef SETLOCALE ++# undef SETLOCALE ++#endif ++#define SETLOCALE(category, locale) setlocale(category, locale) ++#include <locale.h> ++ ++#ifdef _ISO_INTERN ++# undef _ISO_INTERN ++#endif ++#define _ISO_INTERN(str1) iso_intern(str1) ++ ++#ifdef _OEM_INTERN ++# undef _OEM_INTERN ++#endif ++#ifndef IZ_OEM2ISO_ARRAY ++# define IZ_OEM2ISO_ARRAY ++#endif ++#define _OEM_INTERN(str1) oem_intern(str1) ++ ++void iso_intern(char *); ++void oem_intern(char *); ++void init_conversion_charsets(void); ++ + #endif /* !__unxcfg_h */ +Index: unzip-6.0/unzip.c +=================================================================== +--- unzip-6.0.orig/unzip.c 2015-02-11 08:46:43.675324290 -0500 ++++ unzip-6.0/unzip.c 2015-02-11 08:46:43.675324290 -0500 +@@ -327,11 +327,21 @@ + -2 just filenames but allow -h/-t/-z -l long Unix \"ls -l\" format\n\ + -v verbose, multi-page format\n"; + ++#ifndef UNIX + static ZCONST char Far ZipInfoUsageLine3[] = "miscellaneous options:\n\ + -h print header line -t print totals for listed files or for all\n\ + -z print zipfile comment -T print file times in sortable decimal format\ + \n -C be case-insensitive %s\ + -x exclude filenames that follow from listing\n"; ++#else /* UNIX */ ++static ZCONST char Far ZipInfoUsageLine3[] = "miscellaneous options:\n\ ++ -h print header line -t print totals for listed files or for all\n\ ++ -z print zipfile comment %c-T%c print file times in sortable decimal format\ ++\n %c-C%c be case-insensitive %s\ ++ -x exclude filenames that follow from listing\n\ ++ -O CHARSET specify a character encoding for DOS, Windows and OS/2 archives\n\ ++ -I CHARSET specify a character encoding for UNIX and other archives\n"; ++#endif /* !UNIX */ + #ifdef MORE + static ZCONST char Far ZipInfoUsageLine4[] = + " -M page output through built-in \"more\"\n"; +@@ -664,6 +674,17 @@ + -U use escapes for all non-ASCII Unicode -UU ignore any Unicode fields\n\ + -C match filenames case-insensitively -L make (some) names \ + lowercase\n %-42s -V retain VMS version numbers\n%s"; ++#elif (defined UNIX) ++static ZCONST char Far UnzipUsageLine4[] = "\ ++modifiers:\n\ ++ -n never overwrite existing files -q quiet mode (-qq => quieter)\n\ ++ -o overwrite files WITHOUT prompting -a auto-convert any text files\n\ ++ -j junk paths (do not make directories) -aa treat ALL files as text\n\ ++ -U use escapes for all non-ASCII Unicode -UU ignore any Unicode fields\n\ ++ -C match filenames case-insensitively -L make (some) names \ ++lowercase\n %-42s -V retain VMS version numbers\n%s\ ++ -O CHARSET specify a character encoding for DOS, Windows and OS/2 archives\n\ ++ -I CHARSET specify a character encoding for UNIX and other archives\n\n"; + #else /* !VMS */ + static ZCONST char Far UnzipUsageLine4[] = "\ + modifiers:\n\ +@@ -802,6 +823,10 @@ + #endif /* UNICODE_SUPPORT */ + + ++#ifdef UNIX ++ init_conversion_charsets(); ++#endif ++ + #if (defined(__IBMC__) && defined(__DEBUG_ALLOC__)) + extern void DebugMalloc(void); + +@@ -1335,6 +1360,11 @@ + argc = *pargc; + argv = *pargv; + ++#ifdef UNIX ++ extern char OEM_CP[MAX_CP_NAME]; ++ extern char ISO_CP[MAX_CP_NAME]; ++#endif ++ + while (++argv, (--argc > 0 && *argv != NULL && **argv == '-')) { + s = *argv + 1; + while ((c = *s++) != 0) { /* "!= 0": prevent Turbo C warning */ +@@ -1516,6 +1546,35 @@ + } + break; + #endif /* MACOS */ ++#ifdef UNIX ++ case ('I'): ++ if (negative) { ++ Info(slide, 0x401, ((char *)slide, ++ "error: encodings can't be negated")); ++ return(PK_PARAM); ++ } else { ++ if(*s) { /* Handle the -Icharset case */ ++ /* Assume that charsets can't start with a dash to spot arguments misuse */ ++ if(*s == '-') { ++ Info(slide, 0x401, ((char *)slide, ++ "error: a valid character encoding should follow the -I argument")); ++ return(PK_PARAM); ++ } ++ strncpy(ISO_CP, s, sizeof(ISO_CP)); ++ } else { /* -I charset */ ++ ++argv; ++ if(!(--argc > 0 && *argv != NULL && **argv != '-')) { ++ Info(slide, 0x401, ((char *)slide, ++ "error: a valid character encoding should follow the -I argument")); ++ return(PK_PARAM); ++ } ++ s = *argv; ++ strncpy(ISO_CP, s, sizeof(ISO_CP)); ++ } ++ while(*(++s)); /* No params straight after charset name */ ++ } ++ break; ++#endif /* ?UNIX */ + case ('j'): /* junk pathnames/directory structure */ + if (negative) + uO.jflag = FALSE, negative = 0; +@@ -1591,6 +1650,35 @@ + } else + ++uO.overwrite_all; + break; ++#ifdef UNIX ++ case ('O'): ++ if (negative) { ++ Info(slide, 0x401, ((char *)slide, ++ "error: encodings can't be negated")); ++ return(PK_PARAM); ++ } else { ++ if(*s) { /* Handle the -Ocharset case */ ++ /* Assume that charsets can't start with a dash to spot arguments misuse */ ++ if(*s == '-') { ++ Info(slide, 0x401, ((char *)slide, ++ "error: a valid character encoding should follow the -I argument")); ++ return(PK_PARAM); ++ } ++ strncpy(OEM_CP, s, sizeof(OEM_CP)); ++ } else { /* -O charset */ ++ ++argv; ++ if(!(--argc > 0 && *argv != NULL && **argv != '-')) { ++ Info(slide, 0x401, ((char *)slide, ++ "error: a valid character encoding should follow the -O argument")); ++ return(PK_PARAM); ++ } ++ s = *argv; ++ strncpy(OEM_CP, s, sizeof(OEM_CP)); ++ } ++ while(*(++s)); /* No params straight after charset name */ ++ } ++ break; ++#endif /* ?UNIX */ + case ('p'): /* pipes: extract to stdout, no messages */ + if (negative) { + uO.cflag = FALSE; +Index: unzip-6.0/unzpriv.h +=================================================================== +--- unzip-6.0.orig/unzpriv.h 2015-02-11 08:46:43.675324290 -0500 ++++ unzip-6.0/unzpriv.h 2015-02-11 08:46:43.675324290 -0500 +@@ -3008,7 +3008,7 @@ + !(((islochdr) || (isuxatt)) && \ + ((hostver) == 25 || (hostver) == 26 || (hostver) == 40))) || \ + (hostnum) == FS_HPFS_ || \ +- ((hostnum) == FS_NTFS_ && (hostver) == 50)) { \ ++ ((hostnum) == FS_NTFS_ /* && (hostver) == 50 */ )) { \ + _OEM_INTERN((string)); \ + } else { \ + _ISO_INTERN((string)); \ +Index: unzip-6.0/zipinfo.c +=================================================================== +--- unzip-6.0.orig/zipinfo.c 2015-02-11 08:46:43.675324290 -0500 ++++ unzip-6.0/zipinfo.c 2015-02-11 08:46:43.675324290 -0500 +@@ -457,6 +457,10 @@ + int tflag_slm=TRUE, tflag_2v=FALSE; + int explicit_h=FALSE, explicit_t=FALSE; + ++#ifdef UNIX ++ extern char OEM_CP[MAX_CP_NAME]; ++ extern char ISO_CP[MAX_CP_NAME]; ++#endif + + #ifdef MACOS + uO.lflag = LFLAG; /* reset default on each call */ +@@ -501,6 +505,35 @@ + uO.lflag = 0; + } + break; ++#ifdef UNIX ++ case ('I'): ++ if (negative) { ++ Info(slide, 0x401, ((char *)slide, ++ "error: encodings can't be negated")); ++ return(PK_PARAM); ++ } else { ++ if(*s) { /* Handle the -Icharset case */ ++ /* Assume that charsets can't start with a dash to spot arguments misuse */ ++ if(*s == '-') { ++ Info(slide, 0x401, ((char *)slide, ++ "error: a valid character encoding should follow the -I argument")); ++ return(PK_PARAM); ++ } ++ strncpy(ISO_CP, s, sizeof(ISO_CP)); ++ } else { /* -I charset */ ++ ++argv; ++ if(!(--argc > 0 && *argv != NULL && **argv != '-')) { ++ Info(slide, 0x401, ((char *)slide, ++ "error: a valid character encoding should follow the -I argument")); ++ return(PK_PARAM); ++ } ++ s = *argv; ++ strncpy(ISO_CP, s, sizeof(ISO_CP)); ++ } ++ while(*(++s)); /* No params straight after charset name */ ++ } ++ break; ++#endif /* ?UNIX */ + case 'l': /* longer form of "ls -l" type listing */ + if (negative) + uO.lflag = -2, negative = 0; +@@ -521,6 +554,35 @@ + G.M_flag = TRUE; + break; + #endif ++#ifdef UNIX ++ case ('O'): ++ if (negative) { ++ Info(slide, 0x401, ((char *)slide, ++ "error: encodings can't be negated")); ++ return(PK_PARAM); ++ } else { ++ if(*s) { /* Handle the -Ocharset case */ ++ /* Assume that charsets can't start with a dash to spot arguments misuse */ ++ if(*s == '-') { ++ Info(slide, 0x401, ((char *)slide, ++ "error: a valid character encoding should follow the -I argument")); ++ return(PK_PARAM); ++ } ++ strncpy(OEM_CP, s, sizeof(OEM_CP)); ++ } else { /* -O charset */ ++ ++argv; ++ if(!(--argc > 0 && *argv != NULL && **argv != '-')) { ++ Info(slide, 0x401, ((char *)slide, ++ "error: a valid character encoding should follow the -O argument")); ++ return(PK_PARAM); ++ } ++ s = *argv; ++ strncpy(OEM_CP, s, sizeof(OEM_CP)); ++ } ++ while(*(++s)); /* No params straight after charset name */ ++ } ++ break; ++#endif /* ?UNIX */ + case 's': /* default: shorter "ls -l" type listing */ + if (negative) + uO.lflag = -2, negative = 0; diff --git a/meta/recipes-extended/unzip/unzip/unzip-6.0_overflow3.diff b/meta/recipes-extended/unzip/unzip/unzip-6.0_overflow3.diff new file mode 100644 index 0000000..0a0bfbb --- /dev/null +++ b/meta/recipes-extended/unzip/unzip/unzip-6.0_overflow3.diff @@ -0,0 +1,45 @@ +From 190040ebfcf5395a6ccedede2cc9343d34f0a108 Mon Sep 17 00:00:00 2001 +From: mancha <mancha1 AT zoho DOT com> +Date: Wed, 11 Feb 2015 +Subject: Info-ZIP UnZip buffer overflow + +Upstream-Status: Backport + +By carefully crafting a corrupt ZIP archive with "extra fields" that +purport to have compressed blocks larger than the corresponding +uncompressed blocks in STORED no-compression mode, an attacker can +trigger a heap overflow that can result in application crash or +possibly have other unspecified impact. + +This patch ensures that when extra fields use STORED mode, the +"compressed" and uncompressed block sizes match. + +Signed-off-by: mancha <mancha1 AT zoho DOT com> +--- + extract.c | 8 ++++++++ + 1 file changed, 8 insertions(+) + +--- a/extract.c ++++ b/extract.c +@@ -2217,6 +2217,7 @@ static int test_compr_eb(__G__ eb, eb_si + ulg eb_ucsize; + uch *eb_ucptr; + int r; ++ ush method; + + if (compr_offset < 4) /* field is not compressed: */ + return PK_OK; /* do nothing and signal OK */ +@@ -2226,6 +2227,13 @@ static int test_compr_eb(__G__ eb, eb_si + eb_size <= (compr_offset + EB_CMPRHEADLEN))) + return IZ_EF_TRUNC; /* no compressed data! */ + ++ method = makeword(eb + (EB_HEADSIZE + compr_offset)); ++ if ((method == STORED) && ++ (eb_size - compr_offset - EB_CMPRHEADLEN != eb_ucsize)) ++ return PK_ERR; /* compressed & uncompressed ++ * should match in STORED ++ * method */ ++ + if ( + #ifdef INT_16BIT + (((ulg)(extent)eb_ucsize) != eb_ucsize) || diff --git a/meta/recipes-extended/unzip/unzip_6.0.bb b/meta/recipes-extended/unzip/unzip_6.0.bb index 33c20f8..9653bee 100644 --- a/meta/recipes-extended/unzip/unzip_6.0.bb +++ b/meta/recipes-extended/unzip/unzip_6.0.bb @@ -8,7 +8,10 @@ PR = "r5" SRC_URI = "ftp://ftp.info-zip.org/pub/infozip/src/unzip60.tgz \ file://avoid-strip.patch \ - file://define-ldflags.patch" + file://define-ldflags.patch \ + file://06-unzip60-alt-iconv-utf8_CVE-2015-1315.patch \ + file://unzip-6.0_overflow3.diff \ +" SRC_URI[md5sum] = "62b490407489521db863b523a7f86375" SRC_URI[sha256sum] = "036d96991646d0449ed0aa952e4fbe21b476ce994abc276e49d30e686708bd37" -- 1.9.1 -- _______________________________________________ Openembedded-core mailing list Openembedded-core@lists.openembedded.org http://lists.openembedded.org/mailman/listinfo/openembedded-core
