More work on CVE-2020-5208

1 files changed, 186 insertions, 1 deletions

diff --git a/debian/patches/0505-fix_CVE-2020-5208.patch b/debian/patches/0505-fix_CVE-2020-5208.patch
index 5b76b32..1295180 100644
--- a/debian/patches/0505-fix_CVE-2020-5208.patch
+++ b/debian/patches/0505-fix_CVE-2020-5208.patch
@@ -1,5 +1,11 @@
 Description: Fix CVE-2020-5208
-Origin: backport from https://github.com/ipmitool/ipmitool/commit/7ccea283dd62a05a320c1921e3d8d71a87772637
+Origin: backport from
+ https://github.com/ipmitool/ipmitool/commit/e824c23316ae50beb7f7488f2055ac65e8b341f2
+ https://github.com/ipmitool/ipmitool/commit/840fb1cbb4fb365cb9797300e3374d4faefcdb10
+ https://github.com/ipmitool/ipmitool/commit/41d7026946fafbd4d1ec0bcaca3ea30a6e8eed22
+ https://github.com/ipmitool/ipmitool/commit/9452be87181a6e83cfcc768b3ed8321763db50e4
+ https://github.com/ipmitool/ipmitool/commit/d45572d71e70840e0d4c50bf48218492b79c1a10
+ https://github.com/ipmitool/ipmitool/commit/7ccea283dd62a05a320c1921e3d8d71a87772637
 Bug: https://github.com/ipmitool/ipmitool/security/advisories/GHSA-g659-9qxw-p7cp
 Bug-Debian: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=950761
 Forwarded: not-needed
@@ -112,3 +118,182 @@ Index: trunk/lib/ipmi_fru.c
  
  		/* sometimes the size returned in the Info command
  		* is too large.  return 0 so higher level function
+@@ -3033,7 +3062,7 @@ ipmi_fru_print(struct ipmi_intf * intf,
+ 		return 0;
+ 
+ 	memset(desc, 0, sizeof(desc));
+-	memcpy(desc, fru->id_string, fru->id_code & 0x01f);
++	memcpy(desc, fru->id_string, __min(fru->id_code & 0x01f, sizeof(desc)));
+ 	desc[fru->id_code & 0x01f] = 0;
+ 	printf("FRU Device Description : %s (ID %d)\n", desc, fru->device_id);
+ 
+Index: trunk/lib/ipmi_sdr.c
+===================================================================
+--- trunk.orig/lib/ipmi_sdr.c
++++ trunk/lib/ipmi_sdr.c
+@@ -2084,7 +2084,7 @@ ipmi_sdr_print_sensor_eventonly(struct i
+ 		return -1;
+ 
+ 	memset(desc, 0, sizeof (desc));
+-	snprintf(desc, (sensor->id_code & 0x1f) + 1, "%s", sensor->id_string);
++	snprintf(desc, sizeof(desc), "%.*s", (sensor->id_code & 0x1f) + 1, sensor->id_string);
+ 
+ 	if (verbose) {
+ 		printf("Sensor ID              : %s (0x%x)\n",
+@@ -2135,7 +2135,7 @@ ipmi_sdr_print_sensor_mc_locator(struct
+ 		return -1;
+ 
+ 	memset(desc, 0, sizeof (desc));
+-	snprintf(desc, (mc->id_code & 0x1f) + 1, "%s", mc->id_string);
++	snprintf(desc, sizeof(desc), "%.*s", (mc->id_code & 0x1f) + 1, mc->id_string);
+ 
+ 	if (verbose == 0) {
+ 		if (csv_output)
+@@ -2228,7 +2228,7 @@ ipmi_sdr_print_sensor_generic_locator(st
+ 	char desc[17];
+ 
+ 	memset(desc, 0, sizeof (desc));
+-	snprintf(desc, (dev->id_code & 0x1f) + 1, "%s", dev->id_string);
++	snprintf(desc, sizeof(desc), "%.*s", (dev->id_code & 0x1f) + 1, dev->id_string);
+ 
+ 	if (!verbose) {
+ 		if (csv_output)
+@@ -2285,7 +2285,7 @@ ipmi_sdr_print_sensor_fru_locator(struct
+ 	char desc[17];
+ 
+ 	memset(desc, 0, sizeof (desc));
+-	snprintf(desc, (fru->id_code & 0x1f) + 1, "%s", fru->id_string);
++	snprintf(desc, sizeof(desc), "%.*s", (fru->id_code & 0x1f) + 1, fru->id_string);
+ 
+ 	if (!verbose) {
+ 		if (csv_output)
+@@ -2489,35 +2489,43 @@ ipmi_sdr_print_name_from_rawentry(struct
+ 
+    int rc =0;
+    char desc[17];
++   const char *id_string;
++   uint8_t id_code;
+    memset(desc, ' ', sizeof (desc));
+ 
+    switch ( type) {
+       case SDR_RECORD_TYPE_FULL_SENSOR:
+       record.full = (struct sdr_record_full_sensor *) raw;
+-      snprintf(desc, (record.full->id_code & 0x1f) +1, "%s",
+-               (const char *)record.full->id_string);
++      id_code = record.full->id_code;
++      id_string = record.full->id_string;
+       break;
++
+       case SDR_RECORD_TYPE_COMPACT_SENSOR:
+       record.compact = (struct sdr_record_compact_sensor *) raw	;
+-      snprintf(desc, (record.compact->id_code & 0x1f)  +1, "%s",
+-               (const char *)record.compact->id_string);
++      id_code = record.compact->id_code;
++      id_string = record.compact->id_string;
+       break;
++
+       case SDR_RECORD_TYPE_EVENTONLY_SENSOR:
+       record.eventonly  = (struct sdr_record_eventonly_sensor *) raw ;
+-      snprintf(desc, (record.eventonly->id_code & 0x1f)  +1, "%s",
+-               (const char *)record.eventonly->id_string);
+-      break;            
++      id_code = record.eventonly->id_code;
++      id_string = record.eventonly->id_string;
++      break;
++
+       case SDR_RECORD_TYPE_MC_DEVICE_LOCATOR:
+       record.mcloc  = (struct sdr_record_mc_locator *) raw ;
+-      snprintf(desc, (record.mcloc->id_code & 0x1f)  +1, "%s",
+-               (const char *)record.mcloc->id_string);		
++      id_code = record.mcloc->id_code;
++      id_string = record.mcloc->id_string;
+       break;
++
+       default:
+       rc = -1;
+-      break;
+-   }   
++   }
++   if (!rc) {
++       snprintf(desc, sizeof(desc), "%.*s", (id_code & 0x1f) + 1, id_string);
++   }
+ 
+-      lprintf(LOG_INFO, "ID: 0x%04x , NAME: %-16s", id, desc);
++   lprintf(LOG_INFO, "ID: 0x%04x , NAME: %-16s", id, desc);
+    return rc;
+ }
+ 
+Index: trunk/lib/ipmi_channel.c
+===================================================================
+--- trunk.orig/lib/ipmi_channel.c
++++ trunk/lib/ipmi_channel.c
+@@ -378,7 +378,10 @@ ipmi_get_channel_cipher_suites(struct ip
+ 		lprintf(LOG_ERR, "Unable to Get Channel Cipher Suites");
+ 		return -1;
+ 	}
+-	if (rsp->ccode > 0) {
++	if (rsp->ccode
++	    || rsp->data_len < 1
++	    || rsp->data_len > sizeof(uint8_t) + MAX_CIPHER_SUITE_DATA_LEN)
++	{
+ 		lprintf(LOG_ERR, "Get Channel Cipher Suites failed: %s",
+ 			val2str(rsp->ccode, completion_code_vals));
+ 		return -1;
+Index: trunk/lib/ipmi_session.c
+===================================================================
+--- trunk.orig/lib/ipmi_session.c
++++ trunk/lib/ipmi_session.c
+@@ -309,8 +309,10 @@ ipmi_get_session_info(struct ipmi_intf
+ 		}
+ 		else
+ 		{
+-			memcpy(&session_info,  rsp->data, rsp->data_len);
+-			print_session_info(&session_info, rsp->data_len);
++			memcpy(&session_info,  rsp->data,
++			    __min(rsp->data_len, sizeof(session_info)));
++			print_session_info(&session_info,
++			    __min(rsp->data_len, sizeof(session_info)));
+ 		}
+ 		break;
+ 		
+@@ -341,9 +343,10 @@ ipmi_get_session_info(struct ipmi_intf
+ 				break;
+ 			}
+ 
+-			memcpy(&session_info,  rsp->data, rsp->data_len);
+-			print_session_info(&session_info, rsp->data_len);
+-			
++			memcpy(&session_info,  rsp->data,
++			     __min(rsp->data_len, sizeof(session_info)));
++			print_session_info(&session_info,
++			     __min(rsp->data_len, sizeof(session_info)));
+ 		} while (i <= session_info.session_slot_count);
+ 		break;
+ 	}
+Index: trunk/lib/dimm_spd.c
+===================================================================
+--- trunk.orig/lib/dimm_spd.c
++++ trunk/lib/dimm_spd.c
+@@ -1621,7 +1621,7 @@ ipmi_spd_print_fru(struct ipmi_intf * in
+ 	struct ipmi_rq req;
+ 	struct fru_info fru;
+ 	uint8_t *spd_data, msg_data[4];
+-	int len, offset;
++	uint32_t len, offset;
+ 
+ 	msg_data[0] = id;
+ 
+@@ -1697,6 +1697,13 @@ ipmi_spd_print_fru(struct ipmi_intf * in
+ 		}
+ 
+ 		len = rsp->data[0];
++		if(rsp->data_len < 1
++		   || len > rsp->data_len - 1
++		   || len > fru.size - offset)
++		{
++			printf(" Not enough buffer size");
++			return -1;
++		}
+ 		memcpy(&spd_data[offset], rsp->data + 1, len);
+ 		offset += len;
+ 	} while (offset < fru.size);