Date: Tue, 13 May 2014 16:32:45 +0000 (UTC) From: Koop Mast <kwm@FreeBSD.org> To: ports-committers@freebsd.org, svn-ports-all@freebsd.org, svn-ports-head@freebsd.org Subject: svn commit: r353969 - in head/x11-fonts/libXfont: . files Message-ID: <201405131632.s4DGWjm7071492@svn.freebsd.org>
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Author: kwm Date: Tue May 13 16:32:45 2014 New Revision: 353969 URL: http://svnweb.freebsd.org/changeset/ports/353969 QAT: https://qat.redports.org/buildarchive/r353969/ Log: Fix X Font Service Protocol and Font metadata file handling vulnabilities Obtained from: upstream MFH: 2014Q2 Security: b060ee50-daba-11e3-99f2-bcaec565249c Added: head/x11-fonts/libXfont/files/ head/x11-fonts/libXfont/files/patch-src_fc_fsconvert.c (contents, props changed) head/x11-fonts/libXfont/files/patch-src_fc_fserve.c (contents, props changed) head/x11-fonts/libXfont/files/patch-src_fontfile_dirfile.c (contents, props changed) head/x11-fonts/libXfont/files/patch-src_fontfile_fontdir.c (contents, props changed) Modified: head/x11-fonts/libXfont/Makefile Modified: head/x11-fonts/libXfont/Makefile ============================================================================== --- head/x11-fonts/libXfont/Makefile Tue May 13 16:31:17 2014 (r353968) +++ head/x11-fonts/libXfont/Makefile Tue May 13 16:32:45 2014 (r353969) @@ -3,7 +3,7 @@ PORTNAME= libXfont PORTVERSION= 1.4.7 -PORTREVISION= 2 +PORTREVISION= 3 PORTEPOCH= 1 CATEGORIES= x11-fonts Added: head/x11-fonts/libXfont/files/patch-src_fc_fsconvert.c ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/x11-fonts/libXfont/files/patch-src_fc_fsconvert.c Tue May 13 16:32:45 2014 (r353969) @@ -0,0 +1,46 @@ +CVE-2014-0210 +CVE-2014-0211 + +--- src/fc/fsconvert.c.orig 2014-01-07 17:25:08.000000000 +0100 ++++ src/fc/fsconvert.c 2014-05-13 18:14:43.000000000 +0200 +@@ -118,6 +118,10 @@ _fs_convert_props(fsPropInfo *pi, fsProp + for (i = 0; i < nprops; i++, dprop++, is_str++) + { + memcpy(&local_off, off_adr, SIZEOF(fsPropOffset)); ++ if ((local_off.name.position >= pi->data_len) || ++ (local_off.name.length > ++ (pi->data_len - local_off.name.position))) ++ goto bail; + dprop->name = MakeAtom(&pdc[local_off.name.position], + local_off.name.length, 1); + if (local_off.type != PropTypeString) { +@@ -125,10 +129,15 @@ _fs_convert_props(fsPropInfo *pi, fsProp + dprop->value = local_off.value.position; + } else { + *is_str = TRUE; ++ if ((local_off.value.position >= pi->data_len) || ++ (local_off.value.length > ++ (pi->data_len - local_off.value.position))) ++ goto bail; + dprop->value = (INT32) MakeAtom(&pdc[local_off.value.position], + local_off.value.length, 1); + if (dprop->value == BAD_RESOURCE) + { ++ bail: + free (pfi->props); + pfi->nprops = 0; + pfi->props = 0; +@@ -712,7 +721,12 @@ fs_alloc_glyphs (FontPtr pFont, int size + FSGlyphPtr glyphs; + FSFontPtr fsfont = (FSFontPtr) pFont->fontPrivate; + +- glyphs = malloc (sizeof (FSGlyphRec) + size); ++ if (size < (INT_MAX - sizeof (FSGlyphRec))) ++ glyphs = malloc (sizeof (FSGlyphRec) + size); ++ else ++ glyphs = NULL; ++ if (glyphs == NULL) ++ return NULL; + glyphs->next = fsfont->glyphs; + fsfont->glyphs = glyphs; + return (pointer) (glyphs + 1); Added: head/x11-fonts/libXfont/files/patch-src_fc_fserve.c ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/x11-fonts/libXfont/files/patch-src_fc_fserve.c Tue May 13 16:32:45 2014 (r353969) @@ -0,0 +1,525 @@ +CVE-2014-0210 +CVE-2014-0211 + +--- src/fc/fserve.c.orig 2014-01-07 17:25:08.000000000 +0100 ++++ src/fc/fserve.c 2014-05-13 18:12:13.000000000 +0200 +@@ -70,6 +70,7 @@ in this Software without prior written a + #include "fservestr.h" + #include <X11/fonts/fontutil.h> + #include <errno.h> ++#include <limits.h> + + #include <time.h> + #define Time_t time_t +@@ -91,6 +92,15 @@ in this Software without prior written a + (pci)->descent || \ + (pci)->characterWidth) + ++/* ++ * SIZEOF(r) is in bytes, length fields in the protocol are in 32-bit words, ++ * so this converts for doing size comparisons. ++ */ ++#define LENGTHOF(r) (SIZEOF(r) >> 2) ++ ++/* Somewhat arbitrary limit on maximum reply size we'll try to read. */ ++#define MAX_REPLY_LENGTH ((64 * 1024 * 1024) >> 2) ++ + extern void ErrorF(const char *f, ...); + + static int fs_read_glyphs ( FontPathElementPtr fpe, FSBlockDataPtr blockrec ); +@@ -206,9 +216,22 @@ _fs_add_rep_log (FSFpePtr conn, fsGeneri + rep->sequenceNumber, + conn->reqbuffer[i].opcode); + } ++ ++#define _fs_reply_failed(rep, name, op) do { \ ++ if (rep) { \ ++ if (rep->type == FS_Error) \ ++ fprintf (stderr, "Error: %d Request: %s\n", \ ++ ((fsError *)rep)->request, #name); \ ++ else \ ++ fprintf (stderr, "Bad Length for %s Reply: %d %s %d\n", \ ++ #name, rep->length, op, LENGTHOF(name)); \ ++ } \ ++} while (0) ++ + #else + #define _fs_add_req_log(conn,op) ((conn)->current_seq++) + #define _fs_add_rep_log(conn,rep) ++#define _fs_reply_failed(rep,name,op) + #endif + + static Bool +@@ -600,6 +623,21 @@ fs_get_reply (FSFpePtr conn, int *error) + + rep = (fsGenericReply *) buf; + ++ /* ++ * Refuse to accept replies longer than a maximum reasonable length, ++ * before we pass to _fs_start_read, since it will try to resize the ++ * incoming connection buffer to this size. Also avoids integer overflow ++ * on 32-bit systems. ++ */ ++ if (rep->length > MAX_REPLY_LENGTH) ++ { ++ ErrorF("fserve: reply length %d > MAX_REPLY_LENGTH, disconnecting" ++ " from font server\n", rep->length); ++ _fs_connection_died (conn); ++ *error = FSIO_ERROR; ++ return 0; ++ } ++ + ret = _fs_start_read (conn, rep->length << 2, &buf); + if (ret != FSIO_READY) + { +@@ -682,13 +720,15 @@ fs_read_open_font(FontPathElementPtr fpe + int ret; + + rep = (fsOpenBitmapFontReply *) fs_get_reply (conn, &ret); +- if (!rep || rep->type == FS_Error) ++ if (!rep || rep->type == FS_Error || ++ (rep->length != LENGTHOF(fsOpenBitmapFontReply))) + { + if (ret == FSIO_BLOCK) + return StillWorking; + if (rep) + _fs_done_read (conn, rep->length << 2); + fs_cleanup_bfont (bfont); ++ _fs_reply_failed (rep, fsOpenBitmapFontReply, "!="); + return BadFontName; + } + +@@ -815,6 +855,7 @@ fs_read_query_info(FontPathElementPtr fp + FSFpePtr conn = (FSFpePtr) fpe->private; + fsQueryXInfoReply *rep; + char *buf; ++ long bufleft; /* length of reply left to use */ + fsPropInfo *pi; + fsPropOffset *po; + pointer pd; +@@ -824,13 +865,15 @@ fs_read_query_info(FontPathElementPtr fp + int ret; + + rep = (fsQueryXInfoReply *) fs_get_reply (conn, &ret); +- if (!rep || rep->type == FS_Error) ++ if (!rep || rep->type == FS_Error || ++ (rep->length < LENGTHOF(fsQueryXInfoReply))) + { + if (ret == FSIO_BLOCK) + return StillWorking; + if (rep) + _fs_done_read (conn, rep->length << 2); + fs_cleanup_bfont (bfont); ++ _fs_reply_failed (rep, fsQueryXInfoReply, "<"); + return BadFontName; + } + +@@ -844,6 +887,9 @@ fs_read_query_info(FontPathElementPtr fp + buf = (char *) rep; + buf += SIZEOF(fsQueryXInfoReply); + ++ bufleft = rep->length << 2; ++ bufleft -= SIZEOF(fsQueryXInfoReply); ++ + /* move the data over */ + fsUnpack_XFontInfoHeader(rep, pInfo); + +@@ -851,17 +897,50 @@ fs_read_query_info(FontPathElementPtr fp + _fs_init_fontinfo(conn, pInfo); + + /* Compute offsets into the reply */ ++ if (bufleft < SIZEOF(fsPropInfo)) ++ { ++ ret = -1; ++#ifdef DEBUG ++ fprintf(stderr, "fsQueryXInfo: bufleft (%ld) < SIZEOF(fsPropInfo)\n", ++ bufleft); ++#endif ++ goto bail; ++ } + pi = (fsPropInfo *) buf; + buf += SIZEOF (fsPropInfo); ++ bufleft -= SIZEOF(fsPropInfo); + ++ if ((bufleft / SIZEOF(fsPropOffset)) < pi->num_offsets) ++ { ++ ret = -1; ++#ifdef DEBUG ++ fprintf(stderr, ++ "fsQueryXInfo: bufleft (%ld) / SIZEOF(fsPropOffset) < %d\n", ++ bufleft, pi->num_offsets); ++#endif ++ goto bail; ++ } + po = (fsPropOffset *) buf; + buf += pi->num_offsets * SIZEOF(fsPropOffset); ++ bufleft -= pi->num_offsets * SIZEOF(fsPropOffset); + ++ if (bufleft < pi->data_len) ++ { ++ ret = -1; ++#ifdef DEBUG ++ fprintf(stderr, ++ "fsQueryXInfo: bufleft (%ld) < data_len (%d)\n", ++ bufleft, pi->data_len); ++#endif ++ goto bail; ++ } + pd = (pointer) buf; + buf += pi->data_len; ++ bufleft -= pi->data_len; + + /* convert the properties and step over the reply */ + ret = _fs_convert_props(pi, po, pd, pInfo); ++ bail: + _fs_done_read (conn, rep->length << 2); + + if (ret == -1) +@@ -951,13 +1030,15 @@ fs_read_extent_info(FontPathElementPtr f + FontInfoRec *fi = &bfont->pfont->info; + + rep = (fsQueryXExtents16Reply *) fs_get_reply (conn, &ret); +- if (!rep || rep->type == FS_Error) ++ if (!rep || rep->type == FS_Error || ++ (rep->length < LENGTHOF(fsQueryXExtents16Reply))) + { + if (ret == FSIO_BLOCK) + return StillWorking; + if (rep) + _fs_done_read (conn, rep->length << 2); + fs_cleanup_bfont (bfont); ++ _fs_reply_failed (rep, fsQueryXExtents16Reply, "<"); + return BadFontName; + } + +@@ -970,7 +1051,26 @@ fs_read_extent_info(FontPathElementPtr f + numInfos *= 2; + haveInk = TRUE; + } +- ci = pCI = malloc(sizeof(CharInfoRec) * numInfos); ++ if (numInfos >= (INT_MAX / sizeof(CharInfoRec))) { ++#ifdef DEBUG ++ fprintf(stderr, ++ "fsQueryXExtents16: numInfos (%d) >= %ld\n", ++ numInfos, (INT_MAX / sizeof(CharInfoRec))); ++#endif ++ pCI = NULL; ++ } ++ else if (numExtents > ((rep->length - LENGTHOF(fsQueryXExtents16Reply)) ++ / LENGTHOF(fsXCharInfo))) { ++#ifdef DEBUG ++ fprintf(stderr, ++ "fsQueryXExtents16: numExtents (%d) > (%d - %d) / %d\n", ++ numExtents, rep->length, ++ LENGTHOF(fsQueryXExtents16Reply), LENGTHOF(fsXCharInfo)); ++#endif ++ pCI = NULL; ++ } ++ else ++ pCI = malloc(sizeof(CharInfoRec) * numInfos); + + if (!pCI) + { +@@ -1111,7 +1211,7 @@ fs_read_extent_info(FontPathElementPtr f + } + + #ifdef DEBUG +-static char *fs_open_states[] = { ++static const char *fs_open_states[] = { + "OPEN_REPLY ", + "INFO_REPLY ", + "EXTENT_REPLY", +@@ -1381,7 +1481,6 @@ fs_wakeup(FontPathElementPtr fpe, unsign + { + FSBlockDataPtr blockrec; + FSBlockedFontPtr bfont; +- FSBlockedListPtr blist; + static CARD32 lastState; + static FSBlockDataPtr lastBlock; + +@@ -1405,7 +1504,6 @@ fs_wakeup(FontPathElementPtr fpe, unsign + "<freed>"); + break; + case FS_LIST_FONTS: +- blist = (FSBlockedListPtr) blockrec->data; + fprintf (stderr, " Blocked list errcode %d sequence %d\n", + blockrec->errcode, blockrec->sequenceNumber); + break; +@@ -1809,6 +1907,7 @@ fs_read_glyphs(FontPathElementPtr fpe, F + FontInfoPtr pfi = &pfont->info; + fsQueryXBitmaps16Reply *rep; + char *buf; ++ long bufleft; /* length of reply left to use */ + fsOffset32 *ppbits; + fsOffset32 local_off; + char *off_adr; +@@ -1825,22 +1924,48 @@ fs_read_glyphs(FontPathElementPtr fpe, F + unsigned long minchar, maxchar; + + rep = (fsQueryXBitmaps16Reply *) fs_get_reply (conn, &ret); +- if (!rep || rep->type == FS_Error) ++ if (!rep || rep->type == FS_Error || ++ (rep->length < LENGTHOF(fsQueryXBitmaps16Reply))) + { + if (ret == FSIO_BLOCK) + return StillWorking; + if (rep) + _fs_done_read (conn, rep->length << 2); + err = AllocError; ++ _fs_reply_failed (rep, fsQueryXBitmaps16Reply, "<"); + goto bail; + } + + buf = (char *) rep; + buf += SIZEOF (fsQueryXBitmaps16Reply); + ++ bufleft = rep->length << 2; ++ bufleft -= SIZEOF (fsQueryXBitmaps16Reply); ++ ++ if ((bufleft / SIZEOF (fsOffset32)) < rep->num_chars) ++ { ++#ifdef DEBUG ++ fprintf(stderr, ++ "fsQueryXBitmaps16: num_chars (%d) > bufleft (%ld) / %d\n", ++ rep->num_chars, bufleft, SIZEOF (fsOffset32)); ++#endif ++ err = AllocError; ++ goto bail; ++ } + ppbits = (fsOffset32 *) buf; + buf += SIZEOF (fsOffset32) * (rep->num_chars); ++ bufleft -= SIZEOF (fsOffset32) * (rep->num_chars); + ++ if (bufleft < rep->nbytes) ++ { ++#ifdef DEBUG ++ fprintf(stderr, ++ "fsQueryXBitmaps16: nbytes (%d) > bufleft (%ld)\n", ++ rep->nbytes, bufleft); ++#endif ++ err = AllocError; ++ goto bail; ++ } + pbitmaps = (pointer ) buf; + + if (blockrec->type == FS_LOAD_GLYPHS) +@@ -1898,7 +2023,9 @@ fs_read_glyphs(FontPathElementPtr fpe, F + */ + if (NONZEROMETRICS(&fsdata->encoding[minchar].metrics)) + { +- if (local_off.length) ++ if (local_off.length && ++ (local_off.position < rep->nbytes) && ++ (local_off.length <= (rep->nbytes - local_off.position))) + { + bits = allbits; + allbits += local_off.length; +@@ -2228,31 +2355,48 @@ fs_read_list(FontPathElementPtr fpe, FSB + FSBlockedListPtr blist = (FSBlockedListPtr) blockrec->data; + fsListFontsReply *rep; + char *data; ++ long dataleft; /* length of reply left to use */ + int length, + i, + ret; + int err; + + rep = (fsListFontsReply *) fs_get_reply (conn, &ret); +- if (!rep || rep->type == FS_Error) ++ if (!rep || rep->type == FS_Error || ++ (rep->length < LENGTHOF(fsListFontsReply))) + { + if (ret == FSIO_BLOCK) + return StillWorking; + if (rep) + _fs_done_read (conn, rep->length << 2); ++ _fs_reply_failed (rep, fsListFontsReply, "<"); + return AllocError; + } + data = (char *) rep + SIZEOF (fsListFontsReply); ++ dataleft = (rep->length << 2) - SIZEOF (fsListFontsReply); + + err = Successful; + /* copy data into FontPathRecord */ + for (i = 0; i < rep->nFonts; i++) + { ++ if (dataleft < 1) ++ break; + length = *(unsigned char *)data++; ++ dataleft--; /* used length byte */ ++ if (length > dataleft) { ++#ifdef DEBUG ++ fprintf(stderr, ++ "fsListFonts: name length (%d) > dataleft (%ld)\n", ++ length, dataleft); ++#endif ++ err = BadFontName; ++ break; ++ } + err = AddFontNamesName(blist->names, data, length); + if (err != Successful) + break; + data += length; ++ dataleft -= length; + } + _fs_done_read (conn, rep->length << 2); + return err; +@@ -2347,6 +2491,7 @@ fs_read_list_info(FontPathElementPtr fpe + FSBlockedListInfoPtr binfo = (FSBlockedListInfoPtr) blockrec->data; + fsListFontsWithXInfoReply *rep; + char *buf; ++ long bufleft; + FSFpePtr conn = (FSFpePtr) fpe->private; + fsPropInfo *pi; + fsPropOffset *po; +@@ -2358,12 +2503,15 @@ fs_read_list_info(FontPathElementPtr fpe + _fs_free_props (&binfo->info); + + rep = (fsListFontsWithXInfoReply *) fs_get_reply (conn, &ret); +- if (!rep || rep->type == FS_Error) ++ if (!rep || rep->type == FS_Error || ++ ((rep->nameLength != 0) && ++ (rep->length < LENGTHOF(fsListFontsWithXInfoReply)))) + { + if (ret == FSIO_BLOCK) + return StillWorking; + binfo->status = FS_LFWI_FINISHED; + err = AllocError; ++ _fs_reply_failed (rep, fsListFontsWithXInfoReply, "<"); + goto done; + } + /* +@@ -2380,6 +2528,7 @@ fs_read_list_info(FontPathElementPtr fpe + } + + buf = (char *) rep + SIZEOF (fsListFontsWithXInfoReply); ++ bufleft = (rep->length << 2) - SIZEOF (fsListFontsWithXInfoReply); + + /* + * The original FS implementation didn't match +@@ -2388,19 +2537,71 @@ fs_read_list_info(FontPathElementPtr fpe + */ + if (conn->fsMajorVersion <= 1) + { ++ if (rep->nameLength > bufleft) { ++#ifdef DEBUG ++ fprintf(stderr, ++ "fsListFontsWithXInfo: name length (%d) > bufleft (%ld)\n", ++ (int) rep->nameLength, bufleft); ++#endif ++ err = AllocError; ++ goto done; ++ } ++ /* binfo->name is a 256 char array, rep->nameLength is a CARD8 */ + memcpy (binfo->name, buf, rep->nameLength); + buf += _fs_pad_length (rep->nameLength); ++ bufleft -= _fs_pad_length (rep->nameLength); + } + pi = (fsPropInfo *) buf; ++ if (SIZEOF (fsPropInfo) > bufleft) { ++#ifdef DEBUG ++ fprintf(stderr, ++ "fsListFontsWithXInfo: PropInfo length (%d) > bufleft (%ld)\n", ++ (int) SIZEOF (fsPropInfo), bufleft); ++#endif ++ err = AllocError; ++ goto done; ++ } ++ bufleft -= SIZEOF (fsPropInfo); + buf += SIZEOF (fsPropInfo); + po = (fsPropOffset *) buf; ++ if (pi->num_offsets > (bufleft / SIZEOF (fsPropOffset))) { ++#ifdef DEBUG ++ fprintf(stderr, ++ "fsListFontsWithXInfo: offset length (%d * %d) > bufleft (%ld)\n", ++ pi->num_offsets, (int) SIZEOF (fsPropOffset), bufleft); ++#endif ++ err = AllocError; ++ goto done; ++ } ++ bufleft -= pi->num_offsets * SIZEOF (fsPropOffset); + buf += pi->num_offsets * SIZEOF (fsPropOffset); + pd = (pointer) buf; ++ if (pi->data_len > bufleft) { ++#ifdef DEBUG ++ fprintf(stderr, ++ "fsListFontsWithXInfo: data length (%d) > bufleft (%ld)\n", ++ pi->data_len, bufleft); ++#endif ++ err = AllocError; ++ goto done; ++ } ++ bufleft -= pi->data_len; + buf += pi->data_len; + if (conn->fsMajorVersion > 1) + { ++ if (rep->nameLength > bufleft) { ++#ifdef DEBUG ++ fprintf(stderr, ++ "fsListFontsWithXInfo: name length (%d) > bufleft (%ld)\n", ++ (int) rep->nameLength, bufleft); ++#endif ++ err = AllocError; ++ goto done; ++ } ++ /* binfo->name is a 256 char array, rep->nameLength is a CARD8 */ + memcpy (binfo->name, buf, rep->nameLength); + buf += _fs_pad_length (rep->nameLength); ++ bufleft -= _fs_pad_length (rep->nameLength); + } + + #ifdef DEBUG +@@ -2786,7 +2987,7 @@ _fs_recv_conn_setup (FSFpePtr conn) + int ret = FSIO_ERROR; + fsConnSetup *setup; + FSFpeAltPtr alts; +- int i, alt_len; ++ unsigned int i, alt_len; + int setup_len; + char *alt_save, *alt_names; + +@@ -2813,8 +3014,9 @@ _fs_recv_conn_setup (FSFpePtr conn) + } + if (setup->num_alternates) + { ++ size_t alt_name_len = setup->alternate_len << 2; + alts = malloc (setup->num_alternates * sizeof (FSFpeAltRec) + +- (setup->alternate_len << 2)); ++ alt_name_len); + if (alts) + { + alt_names = (char *) (setup + 1); +@@ -2823,10 +3025,25 @@ _fs_recv_conn_setup (FSFpePtr conn) + { + alts[i].subset = alt_names[0]; + alt_len = alt_names[1]; ++ if (alt_len >= alt_name_len) { ++ /* ++ * Length is longer than setup->alternate_len ++ * told us to allocate room for, assume entire ++ * alternate list is corrupted. ++ */ ++#ifdef DEBUG ++ fprintf (stderr, ++ "invalid alt list (length %lx >= %lx)\n", ++ (long) alt_len, (long) alt_name_len); ++#endif ++ free(alts); ++ return FSIO_ERROR; ++ } + alts[i].name = alt_save; + memcpy (alt_save, alt_names + 2, alt_len); + alt_save[alt_len] = '\0'; + alt_save += alt_len + 1; ++ alt_name_len -= alt_len + 1; + alt_names += _fs_pad_length (alt_len + 2); + } + conn->numAlts = setup->num_alternates; +@@ -2964,6 +3181,7 @@ _fs_send_cat_sync (FSFpePtr conn) + * by a bogus catalogue + */ + lcreq.reqType = FS_ListCatalogues; ++ lcreq.data = 0; + lcreq.length = (SIZEOF(fsListCataloguesReq)) >> 2; + lcreq.maxNames = 0; + lcreq.nbytes = 0; Added: head/x11-fonts/libXfont/files/patch-src_fontfile_dirfile.c ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/x11-fonts/libXfont/files/patch-src_fontfile_dirfile.c Tue May 13 16:32:45 2014 (r353969) @@ -0,0 +1,22 @@ +CVE-2014-0209 + +--- src/fontfile/dirfile.c.orig 2014-01-07 17:25:08.000000000 +0100 ++++ src/fontfile/dirfile.c 2014-05-13 18:15:26.000000000 +0200 +@@ -42,6 +42,7 @@ in this Software without prior written a + #include <sys/types.h> + #include <sys/stat.h> + #include <errno.h> ++#include <limits.h> + + static Bool AddFileNameAliases ( FontDirectoryPtr dir ); + static int ReadFontAlias ( char *directory, Bool isFile, +@@ -374,6 +375,9 @@ lexAlias(FILE *file, char **lexToken) + int nsize; + char *nbuf; + ++ if (tokenSize >= (INT_MAX >> 2)) ++ /* Stop before we overflow */ ++ return EALLOC; + nsize = tokenSize ? (tokenSize << 1) : 64; + nbuf = realloc(tokenBuf, nsize); + if (!nbuf) Added: head/x11-fonts/libXfont/files/patch-src_fontfile_fontdir.c ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/x11-fonts/libXfont/files/patch-src_fontfile_fontdir.c Tue May 13 16:32:45 2014 (r353969) @@ -0,0 +1,16 @@ +CVE-2014-0209 + +--- src/fontfile/fontdir.c.orig 2014-01-07 17:25:08.000000000 +0100 ++++ src/fontfile/fontdir.c 2014-05-13 18:13:40.000000000 +0200 +@@ -177,6 +177,11 @@ FontFileAddEntry(FontTablePtr table, Fon + if (table->sorted) + return (FontEntryPtr) 0; /* "cannot" happen */ + if (table->used == table->size) { ++ if (table->size >= ((INT32_MAX / sizeof(FontEntryRec)) - 100)) ++ /* If we've read so many entries we're going to ask for 2gb ++ or more of memory, something is so wrong with this font ++ directory that we should just give up before we overflow. */ ++ return NULL; + newsize = table->size + 100; + entry = realloc(table->entries, newsize * sizeof(FontEntryRec)); + if (!entry)
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