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fixed strtok_r () calls, could prevent memory crashes

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philsmd 2017-11-18 14:23:02 +01:00
parent 05b050fa3e
commit 9d58ddd9f6
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GPG Key ID: 4F25D016D9D6A8AF
5 changed files with 24 additions and 15 deletions
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1
docs/changes.txt
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@ -19,6 +19,7 @@
##
- Changed the way large strings are handled/truncated within the event buffer if they are too large to fit
- Fixed our use of strtok_r () calls
* changes v4.0.0 -> v4.0.1:

4
src/affinity.c
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@ -65,7 +65,7 @@ int set_cpu_affinity (MAYBE_UNUSED hashcat_ctx_t *hashcat_ctx)
if (devices == NULL) return -1;
char *saveptr;
char *saveptr = NULL;
char *next = strtok_r (devices, ",", &saveptr);
@ -99,7 +99,7 @@ int set_cpu_affinity (MAYBE_UNUSED hashcat_ctx_t *hashcat_ctx)
CPU_SET ((cpu_id - 1), &cpuset);
#endif
} while ((next = strtok_r (NULL, ",", &saveptr)) != NULL);
} while ((next = strtok_r ((char *) NULL, ",", &saveptr)) != NULL);
hcfree (devices);

20
src/interface.c
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@ -5902,9 +5902,13 @@ int ikepsk_md5_parse_hash (u8 *input_buf, u32 input_len, hash_t *hash_buf, MAYBE
if (input_buf == NULL) return (PARSER_HASH_VALUE);
char *saveptr;
char tmp_buf[HCBUFSIZ_TINY] = { 0 };
in_off[0] = (u8 *) strtok_r ((char *) input_buf, ":", &saveptr);
memcpy (tmp_buf, input_buf, input_len);
char *saveptr = NULL;
in_off[0] = (u8 *) strtok_r (tmp_buf, ":", &saveptr);
if (in_off[0] == NULL) return (PARSER_SEPARATOR_UNMATCHED);
@ -5990,9 +5994,13 @@ int ikepsk_sha1_parse_hash (u8 *input_buf, u32 input_len, hash_t *hash_buf, MAYB
if (input_buf == NULL) return (PARSER_HASH_VALUE);
char *saveptr;
char tmp_buf[HCBUFSIZ_TINY] = { 0 };
in_off[0] = (u8 *) strtok_r ((char *) input_buf, ":", &saveptr);
memcpy (tmp_buf, input_buf, input_len);
char *saveptr = NULL;
in_off[0] = (u8 *) strtok_r (tmp_buf, ":", &saveptr);
if (in_off[0] == NULL) return (PARSER_SEPARATOR_UNMATCHED);
@ -25269,7 +25277,7 @@ int hashconfig_general_defaults (hashcat_ctx_t *hashcat_ctx)
if (keyfiles == NULL) return -1;
char *saveptr;
char *saveptr = NULL;
char *keyfile = strtok_r (keyfiles, ",", &saveptr);
@ -25291,7 +25299,7 @@ int hashconfig_general_defaults (hashcat_ctx_t *hashcat_ctx)
return -1;
}
} while ((keyfile = strtok_r (NULL, ",", &saveptr)) != NULL);
} while ((keyfile = strtok_r ((char *) NULL, ",", &saveptr)) != NULL);
free (keyfiles);
}

10
src/opencl.c
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@ -117,7 +117,7 @@ static int setup_opencl_platforms_filter (hashcat_ctx_t *hashcat_ctx, const char
if (platforms == NULL) return -1;
char *saveptr;
char *saveptr = NULL;
char *next = strtok_r (platforms, ",", &saveptr);
@ -136,7 +136,7 @@ static int setup_opencl_platforms_filter (hashcat_ctx_t *hashcat_ctx, const char
opencl_platforms_filter |= 1u << (platform - 1);
} while ((next = strtok_r (NULL, ",", &saveptr)) != NULL);
} while ((next = strtok_r ((char *) NULL, ",", &saveptr)) != NULL);
hcfree (platforms);
}
@ -160,7 +160,7 @@ static int setup_devices_filter (hashcat_ctx_t *hashcat_ctx, const char *opencl_
if (devices == NULL) return -1;
char *saveptr;
char *saveptr = NULL;
char *next = strtok_r (devices, ",", &saveptr);
@ -179,7 +179,7 @@ static int setup_devices_filter (hashcat_ctx_t *hashcat_ctx, const char *opencl_
devices_filter |= 1u << (device_id - 1);
} while ((next = strtok_r (NULL, ",", &saveptr)) != NULL);
} while ((next = strtok_r ((char *) NULL, ",", &saveptr)) != NULL);
hcfree (devices);
}
@ -203,7 +203,7 @@ static int setup_device_types_filter (hashcat_ctx_t *hashcat_ctx, const char *op
if (device_types == NULL) return -1;
char *saveptr;
char *saveptr = NULL;
char *next = strtok_r (device_types, ",", &saveptr);

4
src/tuningdb.c
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@ -121,7 +121,7 @@ int tuning_db_init (hashcat_ctx_t *hashcat_ctx)
int token_cnt = 0;
char *saveptr;
char *saveptr = NULL;
char *next = strtok_r (line_buf, "\t ", &saveptr);
@ -129,7 +129,7 @@ int tuning_db_init (hashcat_ctx_t *hashcat_ctx)
token_cnt++;
while ((next = strtok_r (NULL, "\t ", &saveptr)) != NULL)
while ((next = strtok_r ((char *) NULL, "\t ", &saveptr)) != NULL)
{
token_ptr[token_cnt] = next;