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cups-filters/SOURCES/cups-filters-CVE-2024-47175.patch

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diff --git a/cupsfilters/ppdgenerator.c b/cupsfilters/ppdgenerator.c
index 44d9313..a8acde4 100644
--- a/cupsfilters/ppdgenerator.c
+++ b/cupsfilters/ppdgenerator.c
@@ -82,6 +82,7 @@ typedef struct _pwg_finishings_s /**** PWG finishings mapping data ****/
static void pwg_ppdize_name(const char *ipp, char *name, size_t namesize);
static void pwg_ppdize_resolution(ipp_attribute_t *attr, int element, int *xres, int *yres, char *name, size_t namesize);
+static void ppd_put_string(cups_file_t *fp, cups_lang_t *lang, const char *ppd_option, const char *ppd_choice, const char *pwg_msgid);
/*
* '_cupsSetError()' - Set the last PPD generator status-message.
@@ -1188,9 +1189,10 @@ ppdCreateFromIPP(char *buffer, /* I - Filename buffer */
ipp_t *media_col, /* Media collection */
*media_size; /* Media size collection */
char make[256], /* Make and model */
- *model, /* Model name */
+ *mptr, // Pointer into make and model
ppdname[PPD_MAX_NAME];
/* PPD keyword */
+ const char *model; /* Model name */
int i, j, /* Looping vars */
count = 0, /* Number of values */
bottom, /* Largest bottom margin */
@@ -1263,6 +1265,69 @@ ppdCreateFromIPP(char *buffer, /* I - Filename buffer */
return (NULL);
}
+ //
+ // Get a sanitized make and model...
+ //
+
+ if ((attr = ippFindAttribute(response, "printer-make-and-model", IPP_TAG_TEXT)) != NULL && ippValidateAttribute(attr))
+ {
+ // Sanitize the model name to only contain PPD-safe characters.
+ strlcpy(make, ippGetString(attr, 0, NULL), sizeof(make));
+
+ for (mptr = make; *mptr; mptr ++)
+ {
+ if (*mptr < ' ' || *mptr >= 127 || *mptr == '\"')
+ {
+ // Truncate the make and model on the first bad character...
+ *mptr = '\0';
+ break;
+ }
+ }
+
+ while (mptr > make)
+ {
+ // Strip trailing whitespace...
+ mptr --;
+ if (*mptr == ' ')
+ *mptr = '\0';
+ }
+
+ if (!make[0])
+ {
+ // Use a default make and model if nothing remains...
+ strlcpy(make, "Unknown", sizeof(make));
+ }
+ }
+ else
+ {
+ // Use a default make and model...
+ strlcpy(make, "Unknown", sizeof(make));
+ }
+
+ if (!strncasecmp(make, "Hewlett Packard ", 16) || !strncasecmp(make, "Hewlett-Packard ", 16))
+ {
+ // Normalize HP printer make and model...
+ model = make + 16;
+ strlcpy(make, "HP", sizeof(make));
+
+ if (!strncasecmp(model, "HP ", 3))
+ model += 3;
+ }
+ else if ((mptr = strchr(make, ' ')) != NULL)
+ {
+ // Separate "MAKE MODEL"...
+ while (*mptr && *mptr == ' ')
+ *mptr++ = '\0';
+
+ model = mptr;
+ }
+ else
+ {
+ // No separate model name...
+ model = "Printer";
+ }
+
+
/*
* Standard stuff for PPD file...
*/
@@ -1277,24 +1342,6 @@ ppdCreateFromIPP(char *buffer, /* I - Filename buffer */
cupsFilePuts(fp, "*FileSystem: False\n");
cupsFilePuts(fp, "*PCFileName: \"drvless.ppd\"\n");
- if ((attr = ippFindAttribute(response, "printer-make-and-model", IPP_TAG_TEXT)) != NULL)
- strlcpy(make, ippGetString(attr, 0, NULL), sizeof(make));
- else if (make_model && make_model[0] != '\0')
- strlcpy(make, make_model, sizeof(make));
- else
- strlcpy(make, "Unknown Printer", sizeof(make));
-
- if (!_cups_strncasecmp(make, "Hewlett Packard ", 16) ||
- !_cups_strncasecmp(make, "Hewlett-Packard ", 16))
- {
- model = make + 16;
- strlcpy(make, "HP", sizeof(make));
- }
- else if ((model = strchr(make, ' ')) != NULL)
- *model++ = '\0';
- else
- model = make;
-
cupsFilePrintf(fp, "*Manufacturer: \"%s\"\n", make);
cupsFilePrintf(fp, "*ModelName: \"%s %s\"\n", make, model);
cupsFilePrintf(fp, "*Product: \"(%s %s)\"\n", make, model);
@@ -1311,10 +1358,10 @@ ppdCreateFromIPP(char *buffer, /* I - Filename buffer */
cupsFilePuts(fp, "*cupsSNMPSupplies: False\n");
cupsFilePuts(fp, "*cupsLanguages: \"en\"\n");
- if ((attr = ippFindAttribute(response, "printer-more-info", IPP_TAG_URI)) != NULL)
+ if ((attr = ippFindAttribute(response, "printer-more-info", IPP_TAG_URI)) != NULL && ippValidateAttribute(attr))
cupsFilePrintf(fp, "*APSupplies: \"%s\"\n", ippGetString(attr, 0, NULL));
- if ((attr = ippFindAttribute(response, "printer-charge-info-uri", IPP_TAG_URI)) != NULL)
+ if ((attr = ippFindAttribute(response, "printer-charge-info-uri", IPP_TAG_URI)) != NULL && ippValidateAttribute(attr))
cupsFilePrintf(fp, "*cupsChargeInfoURI: \"%s\"\n", ippGetString(attr, 0, NULL));
/* Message catalogs for UI strings */
@@ -1322,7 +1369,7 @@ ppdCreateFromIPP(char *buffer, /* I - Filename buffer */
opt_strings_catalog = optArrayNew();
load_opt_strings_catalog(NULL, opt_strings_catalog);
}
- if ((attr = ippFindAttribute(response, "printer-strings-uri", IPP_TAG_URI)) != NULL) {
+ if ((attr = ippFindAttribute(response, "printer-strings-uri", IPP_TAG_URI)) != NULL && ippValidateAttribute(attr)) {
printer_opt_strings_catalog = optArrayNew();
load_opt_strings_catalog(ippGetString(attr, 0, NULL), printer_opt_strings_catalog);
if (printer_opt_strings_catalog)
@@ -2150,13 +2197,15 @@ ppdCreateFromIPP(char *buffer, /* I - Filename buffer */
break;
}
if (j >= 0)
- cupsFilePrintf(fp, "*InputSlot %s/%s: \"<</MediaPosition %d>>setpagedevice\"\n",
- ppdname, human_readable, j);
+ {
+ cupsFilePrintf(fp, "*InputSlot %s: \"<</MediaPosition %d>>setpagedevice\"\n", ppdname, j);
+ ppd_put_string(fp, lang, "InputSlot", ppdname, human_readable);
+ }
else
- cupsFilePrintf(fp, "*InputSlot %s%s%s: \"\"\n",
- ppdname,
- (human_readable ? "/" : ""),
- (human_readable ? human_readable : ""));
+ {
+ cupsFilePrintf(fp, "*InputSlot %s%s%s:\"\"\n", ppdname, human_readable ? "/" : "", human_readable ? human_readable : "");
+ ppd_put_string(fp, lang, "InputSlot", ppdname, human_readable);
+ }
}
cupsFilePuts(fp, "*CloseUI: *InputSlot\n");
}
@@ -2337,11 +2386,8 @@ ppdCreateFromIPP(char *buffer, /* I - Filename buffer */
human_readable = (char *)_cupsLangString(lang, media_types[j][1]);
break;
}
- cupsFilePrintf(fp, "*MediaType %s%s%s: \"<</MediaType(%s)>>setpagedevice\"\n",
- ppdname,
- (human_readable ? "/" : ""),
- (human_readable ? human_readable : ""),
- ppdname);
+ cupsFilePrintf(fp, "*MediaType %s: \"<</MediaType(%s)>>setpagedevice\"\n", ppdname, ppdname);
+ ppd_put_string(fp, lang, "MediaType", ppdname, human_readable);
}
cupsFilePuts(fp, "*CloseUI: *MediaType\n");
}
@@ -2755,10 +2801,8 @@ ppdCreateFromIPP(char *buffer, /* I - Filename buffer */
human_readable = (char *)_cupsLangString(lang, output_bins[j][1]);
break;
}
- cupsFilePrintf(fp, "*OutputBin %s%s%s: \"\"\n",
- ppdname,
- (human_readable ? "/" : ""),
- (human_readable ? human_readable : ""));
+ cupsFilePrintf(fp, "*OutputBin %s: \"\"\n", ppdname);
+ ppd_put_string(fp, lang, "OutputBin", ppdname, human_readable);
}
cupsFilePuts(fp, "*CloseUI: *OutputBin\n");
}
@@ -2898,9 +2942,8 @@ ppdCreateFromIPP(char *buffer, /* I - Filename buffer */
human_readable = (char *)_cupsLangString(lang, finishings[j][1]);
break;
}
- cupsFilePrintf(fp, "*StapleLocation %s%s%s: \"\"\n", name,
- (human_readable ? "/" : ""),
- (human_readable ? human_readable : ""));
+ cupsFilePrintf(fp, "*StapleLocation %s: \"\"\n", name);
+ ppd_put_string(fp, lang, "StapleLocation", name, human_readable);
cupsFilePrintf(fp, "*cupsIPPFinishings %d/%s: \"*StapleLocation %s\"\n", value, name, name);
}
@@ -2955,9 +2998,8 @@ ppdCreateFromIPP(char *buffer, /* I - Filename buffer */
human_readable = (char *)_cupsLangString(lang, finishings[j][1]);
break;
}
- cupsFilePrintf(fp, "*FoldType %s%s%s: \"\"\n", name,
- (human_readable ? "/" : ""),
- (human_readable ? human_readable : ""));
+ cupsFilePrintf(fp, "*FoldType %s: \"\"\n", name);
+ ppd_put_string(fp, lang, "FoldType", name, human_readable);
cupsFilePrintf(fp, "*cupsIPPFinishings %d/%s: \"*FoldType %s\"\n", value, name, name);
}
@@ -3012,9 +3054,8 @@ ppdCreateFromIPP(char *buffer, /* I - Filename buffer */
human_readable = (char *)_cupsLangString(lang, finishings[j][1]);
break;
}
- cupsFilePrintf(fp, "*PunchMedia %s%s%s: \"\"\n", name,
- (human_readable ? "/" : ""),
- (human_readable ? human_readable : ""));
+ cupsFilePrintf(fp, "*PunchMedia %s: \"\"\n", name);
+ ppd_put_string(fp, lang, "PunchMedia", name, human_readable);
cupsFilePrintf(fp, "*cupsIPPFinishings %d/%s: \"*PunchMedia %s\"\n", value, name, name);
}
@@ -3076,7 +3117,9 @@ ppdCreateFromIPP(char *buffer, /* I - Filename buffer */
printer_opt_strings_catalog);
if (human_readable == NULL)
human_readable = (char *)keyword;
- cupsFilePrintf(fp, "*cupsFinishingTemplate %s/%s: \"\n", keyword, human_readable);
+ pwg_ppdize_name(keyword, ppdname, sizeof(ppdname));
+ cupsFilePrintf(fp, "*cupsFinishingTemplate %s: \"\n", ppdname);
+ ppd_put_string(fp, lang, "cupsFinishingTemplate", ppdname, human_readable);
for (finishing_attr = ippFirstAttribute(finishing_col); finishing_attr; finishing_attr = ippNextAttribute(finishing_col))
{
if (ippGetValueTag(finishing_attr) == IPP_TAG_BEGIN_COLLECTION)
@@ -3332,11 +3375,11 @@ ppdCreateFromIPP(char *buffer, /* I - Filename buffer */
if (!preset || !preset_name)
continue;
- if ((localized_name = lookup_option((char *)preset_name, opt_strings_catalog,
- printer_opt_strings_catalog)) == NULL)
- cupsFilePrintf(fp, "*APPrinterPreset %s: \"\n", preset_name);
- else
- cupsFilePrintf(fp, "*APPrinterPreset %s/%s: \"\n", preset_name, localized_name);
+ pwg_ppdize_name(preset_name, ppdname, sizeof(ppdname));
+
+ localized_name = lookup_option((char *)preset_name, opt_strings_catalog, printer_opt_strings_catalog);
+ cupsFilePrintf(fp, "*APPrinterPreset %s: \"\n", ppdname);
+ ppd_put_string(fp, lang, "APPrinterPreset", ppdname, localized_name);
for (member = ippFirstAttribute(preset); member; member = ippNextAttribute(preset))
{
@@ -3378,7 +3421,10 @@ ppdCreateFromIPP(char *buffer, /* I - Filename buffer */
fin_col = ippGetCollection(member, i);
if ((keyword = ippGetString(ippFindAttribute(fin_col, "finishing-template", IPP_TAG_ZERO), 0, NULL)) != NULL)
- cupsFilePrintf(fp, "*cupsFinishingTemplate %s\n", keyword);
+ {
+ pwg_ppdize_name(keyword, ppdname, sizeof(ppdname));
+ cupsFilePrintf(fp, "*cupsFinishingTemplate %s\n", ppdname);
+ }
}
}
else if (!strcmp(member_name, "media"))
@@ -3405,13 +3451,13 @@ ppdCreateFromIPP(char *buffer, /* I - Filename buffer */
if ((keyword = ippGetString(ippFindAttribute(media_col, "media-source", IPP_TAG_ZERO), 0, NULL)) != NULL)
{
pwg_ppdize_name(keyword, ppdname, sizeof(ppdname));
- cupsFilePrintf(fp, "*InputSlot %s\n", keyword);
+ cupsFilePrintf(fp, "*InputSlot %s\n", ppdname);
}
if ((keyword = ippGetString(ippFindAttribute(media_col, "media-type", IPP_TAG_ZERO), 0, NULL)) != NULL)
{
pwg_ppdize_name(keyword, ppdname, sizeof(ppdname));
- cupsFilePrintf(fp, "*MediaType %s\n", keyword);
+ cupsFilePrintf(fp, "*MediaType %s\n", ppdname);
}
}
else if (!strcmp(member_name, "print-quality"))
@@ -3670,18 +3716,29 @@ pwg_ppdize_name(const char *ipp, /* I - IPP keyword */
char *ptr, /* Pointer into name buffer */
*end; /* End of name buffer */
+ if (!ipp || !_cups_isalnum(*ipp))
+ {
+ *name = '\0';
+ return;
+ }
*name = (char)toupper(*ipp++);
for (ptr = name + 1, end = name + namesize - 1; *ipp && ptr < end;)
{
- if (*ipp == '-' && _cups_isalpha(ipp[1]))
+ if (*ipp == '-' && isalnum(ipp[1]))
{
ipp ++;
*ptr++ = (char)toupper(*ipp++ & 255);
}
- else
+ else if (*ipp == '_' || *ipp == '.' || *ipp == '-' || isalnum(*ipp))
+ {
*ptr++ = *ipp++;
+ }
+ else
+ {
+ ipp ++;
+ }
}
*ptr = '\0';
@@ -3721,6 +3778,41 @@ pwg_ppdize_resolution(
snprintf(name, namesize, "%dx%ddpi", *xres, *yres);
}
}
+
+
+/*
+ * 'ppd_put_strings()' - Write localization attributes to a PPD file.
+ */
+
+static void
+ppd_put_string(cups_file_t *fp, /* I - PPD file */
+ cups_lang_t *lang, /* I - Language */
+ const char *ppd_option,/* I - PPD option */
+ const char *ppd_choice,/* I - PPD choice */
+ const char *text) /* I - Localized text */
+{
+ if (!text)
+ return;
+
+ // Add the first line of localized text...
+#if CUPS_VERSION_MAJOR > 2
+ cupsFilePrintf(fp, "*%s.%s %s/", cupsLangGetName(lang), ppd_option, ppd_choice);
+#else
+ cupsFilePrintf(fp, "*%s.%s %s/", lang->language, ppd_option, ppd_choice);
+#endif // CUPS_VERSION_MAJOR > 2
+
+ while (*text && *text != '\n')
+ {
+ // Escape ":" and "<"...
+ if (*text == ':' || *text == '<')
+ cupsFilePrintf(fp, "<%02X>", *text);
+ else
+ cupsFilePutChar(fp, *text);
+
+ text ++;
+ }
+ cupsFilePuts(fp, ": \"\"\n");
+}
#endif /* HAVE_CUPS_1_6 */
/*
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