Flawfinder version 2.0.10, (C) 2001-2019 David A. Wheeler.
Number of rules (primarily dangerous function names) in C/C++ ruleset: 223
Examining data/libpam-encfs-0.1.4.4/pam_encfs.c
FINAL RESULTS:
data/libpam-encfs-0.1.4.4/pam_encfs.c:281:13: [4] (buffer) sscanf:
The scanf() family's %s operation, without a limit specification, permits
buffer overflows (CWE-120, CWE-20). Specify a limit to %s, or use a
different input function.
sscanf(line, "%s%s%s%s%s", username, path, targetpath,
data/libpam-encfs-0.1.4.4/pam_encfs.c:293:17: [4] (buffer) strcpy:
Does not check for buffer overflows when copying to destination [MS-banned]
(CWE-120). Consider using snprintf, strcpy_s, or strlcpy (warning: strncpy
easily misused).
strcpy(default_encfs_options, path);
data/libpam-encfs-0.1.4.4/pam_encfs.c:299:17: [4] (buffer) strcpy:
Does not check for buffer overflows when copying to destination [MS-banned]
(CWE-120). Consider using snprintf, strcpy_s, or strlcpy (warning: strncpy
easily misused).
strcpy(default_fuse_options, path);
data/libpam-encfs-0.1.4.4/pam_encfs.c:322:17: [4] (buffer) strcat:
Does not check for buffer overflows when concatenating to destination
[MS-banned] (CWE-120). Consider using strcat_s, strncat, strlcat, or
snprintf (warning: strncat is easily misused).
strcat(path, user);
data/libpam-encfs-0.1.4.4/pam_encfs.c:334:25: [4] (buffer) strcpy:
Does not check for buffer overflows when copying to destination [MS-banned]
(CWE-120). Consider using snprintf, strcpy_s, or strlcpy (warning: strncpy
easily misused).
strcpy(home, tmp);
data/libpam-encfs-0.1.4.4/pam_encfs.c:336:25: [4] (buffer) strcat:
Does not check for buffer overflows when concatenating to destination
[MS-banned] (CWE-120). Consider using strcat_s, strncat, strlcat, or
snprintf (warning: strncat is easily misused).
strcat(home, path);
data/libpam-encfs-0.1.4.4/pam_encfs.c:337:25: [4] (buffer) strcpy:
Does not check for buffer overflows when copying to destination [MS-banned]
(CWE-120). Consider using snprintf, strcpy_s, or strlcpy (warning: strncpy
easily misused).
strcpy(path, home);
data/libpam-encfs-0.1.4.4/pam_encfs.c:339:25: [4] (buffer) strcpy:
Does not check for buffer overflows when copying to destination [MS-banned]
(CWE-120). Consider using snprintf, strcpy_s, or strlcpy (warning: strncpy
easily misused).
strcpy(home, tmp);
data/libpam-encfs-0.1.4.4/pam_encfs.c:341:25: [4] (buffer) strcat:
Does not check for buffer overflows when concatenating to destination
[MS-banned] (CWE-120). Consider using strcat_s, strncat, strlcat, or
snprintf (warning: strncat is easily misused).
strcat(home, targetpath);
data/libpam-encfs-0.1.4.4/pam_encfs.c:342:25: [4] (buffer) strcpy:
Does not check for buffer overflows when copying to destination [MS-banned]
(CWE-120). Consider using snprintf, strcpy_s, or strlcpy (warning: strncpy
easily misused).
strcpy(targetpath, home);
data/libpam-encfs-0.1.4.4/pam_encfs.c:353:21: [4] (buffer) strcpy:
Does not check for buffer overflows when copying to destination [MS-banned]
(CWE-120). Consider using snprintf, strcpy_s, or strlcpy (warning: strncpy
easily misused).
strcpy(targetpath, tmp);
data/libpam-encfs-0.1.4.4/pam_encfs.c:526:5: [4] (buffer) strcat:
Does not check for buffer overflows when concatenating to destination
[MS-banned] (CWE-120). Consider using strcat_s, strncat, strlcat, or
snprintf (warning: strncat is easily misused).
strcat(fuse_options,default_fuse_options);
data/libpam-encfs-0.1.4.4/pam_encfs.c:586:13: [4] (shell) execvp:
This causes a new program to execute and is difficult to use safely
(CWE-78). try using a library call that implements the same functionality
if available.
execvp("encfs", arg);
data/libpam-encfs-0.1.4.4/pam_encfs.c:689:13: [4] (shell) execvp:
This causes a new program to execute and is difficult to use safely
(CWE-78). try using a library call that implements the same functionality
if available.
execvp("fusermount", args);
data/libpam-encfs-0.1.4.4/pam_encfs.c:89:8: [2] (buffer) char:
Statically-sized arrays can be improperly restricted, leading to potential
overflows or other issues (CWE-119!/CWE-120). Perform bounds checking, use
functions that limit length, or ensure that the size is larger than the
maximum possible length.
static char default_encfs_options[USERNAME_MAX];
data/libpam-encfs-0.1.4.4/pam_encfs.c:90:8: [2] (buffer) char:
Statically-sized arrays can be improperly restricted, leading to potential
overflows or other issues (CWE-119!/CWE-120). Perform bounds checking, use
functions that limit length, or ensure that the size is larger than the
maximum possible length.
static char default_fuse_options[USERNAME_MAX];
data/libpam-encfs-0.1.4.4/pam_encfs.c:263:5: [2] (buffer) char:
Statically-sized arrays can be improperly restricted, leading to potential
overflows or other issues (CWE-119!/CWE-120). Perform bounds checking, use
functions that limit length, or ensure that the size is larger than the
maximum possible length.
char line[BUFSIZE];
data/libpam-encfs-0.1.4.4/pam_encfs.c:264:5: [2] (buffer) char:
Statically-sized arrays can be improperly restricted, leading to potential
overflows or other issues (CWE-119!/CWE-120). Perform bounds checking, use
functions that limit length, or ensure that the size is larger than the
maximum possible length.
char username[USERNAME_MAX];
data/libpam-encfs-0.1.4.4/pam_encfs.c:270:21: [2] (misc) fopen:
Check when opening files - can an attacker redirect it (via symlinks),
force the opening of special file type (e.g., device files), move things
around to create a race condition, control its ancestors, or change its
contents? (CWE-362).
if ((conffile = fopen(CONFIGFILE, "r")) == NULL)
data/libpam-encfs-0.1.4.4/pam_encfs.c:332:25: [2] (buffer) char:
Statically-sized arrays can be improperly restricted, leading to potential
overflows or other issues (CWE-119!/CWE-120). Perform bounds checking, use
functions that limit length, or ensure that the size is larger than the
maximum possible length.
char home[PATH_MAX];
data/libpam-encfs-0.1.4.4/pam_encfs.c:429:5: [2] (buffer) char:
Statically-sized arrays can be improperly restricted, leading to potential
overflows or other issues (CWE-119!/CWE-120). Perform bounds checking, use
functions that limit length, or ensure that the size is larger than the
maximum possible length.
char path[PATH_MAX];
data/libpam-encfs-0.1.4.4/pam_encfs.c:430:5: [2] (buffer) char:
Statically-sized arrays can be improperly restricted, leading to potential
overflows or other issues (CWE-119!/CWE-120). Perform bounds checking, use
functions that limit length, or ensure that the size is larger than the
maximum possible length.
char targetpath[PATH_MAX];
data/libpam-encfs-0.1.4.4/pam_encfs.c:431:5: [2] (buffer) char:
Statically-sized arrays can be improperly restricted, leading to potential
overflows or other issues (CWE-119!/CWE-120). Perform bounds checking, use
functions that limit length, or ensure that the size is larger than the
maximum possible length.
char encfs_options[USERNAME_MAX];
data/libpam-encfs-0.1.4.4/pam_encfs.c:432:5: [2] (buffer) char:
Statically-sized arrays can be improperly restricted, leading to potential
overflows or other issues (CWE-119!/CWE-120). Perform bounds checking, use
functions that limit length, or ensure that the size is larger than the
maximum possible length.
char fuse_options[USERNAME_MAX];
data/libpam-encfs-0.1.4.4/pam_encfs.c:439:5: [2] (buffer) char:
Statically-sized arrays can be improperly restricted, leading to potential
overflows or other issues (CWE-119!/CWE-120). Perform bounds checking, use
functions that limit length, or ensure that the size is larger than the
maximum possible length.
char *arg[USERNAME_MAX];
data/libpam-encfs-0.1.4.4/pam_encfs.c:587:13: [2] (buffer) char:
Statically-sized arrays can be improperly restricted, leading to potential
overflows or other issues (CWE-119!/CWE-120). Perform bounds checking, use
functions that limit length, or ensure that the size is larger than the
maximum possible length.
char errstr[128];
data/libpam-encfs-0.1.4.4/pam_encfs.c:620:5: [2] (buffer) char:
Statically-sized arrays can be improperly restricted, leading to potential
overflows or other issues (CWE-119!/CWE-120). Perform bounds checking, use
functions that limit length, or ensure that the size is larger than the
maximum possible length.
char buff[512];
data/libpam-encfs-0.1.4.4/pam_encfs.c:663:5: [2] (buffer) char:
Statically-sized arrays can be improperly restricted, leading to potential
overflows or other issues (CWE-119!/CWE-120). Perform bounds checking, use
functions that limit length, or ensure that the size is larger than the
maximum possible length.
char *args[4];
data/libpam-encfs-0.1.4.4/pam_encfs.c:690:13: [2] (buffer) char:
Statically-sized arrays can be improperly restricted, leading to potential
overflows or other issues (CWE-119!/CWE-120). Perform bounds checking, use
functions that limit length, or ensure that the size is larger than the
maximum possible length.
char errstr[128];
data/libpam-encfs-0.1.4.4/pam_encfs.c:227:9: [1] (buffer) strlen:
Does not handle strings that are not \0-terminated; if given one it may
perform an over-read (it could cause a crash if unprotected) (CWE-126).
if (strlen(line) == 0)
data/libpam-encfs-0.1.4.4/pam_encfs.c:307:17: [1] (buffer) strcpy:
Does not check for buffer overflows when copying to destination [MS-banned]
(CWE-120). Consider using snprintf, strcpy_s, or strlcpy (warning: strncpy
easily misused). Risk is low because the source is a constant character.
strcpy(encfs_options, "");
data/libpam-encfs-0.1.4.4/pam_encfs.c:309:17: [1] (buffer) strcpy:
Does not check for buffer overflows when copying to destination [MS-banned]
(CWE-120). Consider using snprintf, strcpy_s, or strlcpy (warning: strncpy
easily misused). Risk is low because the source is a constant character.
strcpy(fuse_options, "");
data/libpam-encfs-0.1.4.4/pam_encfs.c:321:15: [1] (buffer) strcat:
Does not check for buffer overflows when concatenating to destination
[MS-banned] (CWE-120). Consider using strcat_s, strncat, strlcat, or
snprintf (warning: strncat is easily misused). Risk is low because the
source is a constant character.
strcat(path, "/");
data/libpam-encfs-0.1.4.4/pam_encfs.c:335:25: [1] (buffer) strcat:
Does not check for buffer overflows when concatenating to destination
[MS-banned] (CWE-120). Consider using strcat_s, strncat, strlcat, or
snprintf (warning: strncat is easily misused). Risk is low because the
source is a constant character.
strcat(home, "/");
data/libpam-encfs-0.1.4.4/pam_encfs.c:340:25: [1] (buffer) strcat:
Does not check for buffer overflows when concatenating to destination
[MS-banned] (CWE-120). Consider using strcat_s, strncat, strlcat, or
snprintf (warning: strncat is easily misused). Risk is low because the
source is a constant character.
strcat(home, "/");
data/libpam-encfs-0.1.4.4/pam_encfs.c:349:17: [1] (buffer) strcpy:
Does not check for buffer overflows when copying to destination [MS-banned]
(CWE-120). Consider using snprintf, strcpy_s, or strlcpy (warning: strncpy
easily misused). Risk is low because the source is a constant character.
strcpy(targetpath, "");
data/libpam-encfs-0.1.4.4/pam_encfs.c:435:5: [1] (buffer) strcpy:
Does not check for buffer overflows when copying to destination [MS-banned]
(CWE-120). Consider using snprintf, strcpy_s, or strlcpy (warning: strncpy
easily misused). Risk is low because the source is a constant character.
strcpy(default_encfs_options, "");
data/libpam-encfs-0.1.4.4/pam_encfs.c:436:5: [1] (buffer) strcpy:
Does not check for buffer overflows when copying to destination [MS-banned]
(CWE-120). Consider using snprintf, strcpy_s, or strlcpy (warning: strncpy
easily misused). Risk is low because the source is a constant character.
strcpy(default_fuse_options, "");
data/libpam-encfs-0.1.4.4/pam_encfs.c:523:9: [1] (buffer) strlen:
Does not handle strings that are not \0-terminated; if given one it may
perform an over-read (it could cause a crash if unprotected) (CWE-126).
if (strlen(default_fuse_options) > 0 && strlen(fuse_options) > 0)
data/libpam-encfs-0.1.4.4/pam_encfs.c:523:45: [1] (buffer) strlen:
Does not handle strings that are not \0-terminated; if given one it may
perform an over-read (it could cause a crash if unprotected) (CWE-126).
if (strlen(default_fuse_options) > 0 && strlen(fuse_options) > 0)
data/libpam-encfs-0.1.4.4/pam_encfs.c:524:9: [1] (buffer) strcat:
Does not check for buffer overflows when concatenating to destination
[MS-banned] (CWE-120). Consider using strcat_s, strncat, strlcat, or
snprintf (warning: strncat is easily misused). Risk is low because the
source is a constant character.
strcat(fuse_options, ",");
data/libpam-encfs-0.1.4.4/pam_encfs.c:527:9: [1] (buffer) strlen:
Does not handle strings that are not \0-terminated; if given one it may
perform an over-read (it could cause a crash if unprotected) (CWE-126).
if (strlen(fuse_options) > 0) {
data/libpam-encfs-0.1.4.4/pam_encfs.c:605:58: [1] (buffer) strlen:
Does not handle strings that are not \0-terminated; if given one it may
perform an over-read (it could cause a crash if unprotected) (CWE-126).
len = write(outpipe[WRITE_END], passwd, (size_t) strlen(passwd));
data/libpam-encfs-0.1.4.4/pam_encfs.c:606:30: [1] (buffer) strlen:
Does not handle strings that are not \0-terminated; if given one it may
perform an over-read (it could cause a crash if unprotected) (CWE-126).
if ((len != (size_t) strlen(passwd))
data/libpam-encfs-0.1.4.4/pam_encfs.c:622:11: [1] (buffer) read:
Check buffer boundaries if used in a loop including recursive loops
(CWE-120, CWE-20).
len = read(inpipe[READ_END], &buff, 511);
ANALYSIS SUMMARY:
Hits = 45
Lines analyzed = 725 in approximately 0.03 seconds (20724 lines/second)
Physical Source Lines of Code (SLOC) = 523
Hits@level = [0] 2 [1] 16 [2] 15 [3] 0 [4] 14 [5] 0
Hits@level+ = [0+] 47 [1+] 45 [2+] 29 [3+] 14 [4+] 14 [5+] 0
Hits/KSLOC@level+ = [0+] 89.8662 [1+] 86.0421 [2+] 55.4493 [3+] 26.7686 [4+] 26.7686 [5+] 0
Dot directories skipped = 1 (--followdotdir overrides)
Minimum risk level = 1
Not every hit is necessarily a security vulnerability.
There may be other security vulnerabilities; review your code!
See 'Secure Programming HOWTO'
(https://dwheeler.com/secure-programs) for more information.