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/kwallet-pam-5.19.5/pam_darwin.h
Examining data/kwallet-pam-5.19.5/pam_kwallet.c
Examining data/kwallet-pam-5.19.5/pam_darwin.c

FINAL RESULTS:

data/kwallet-pam-5.19.5/pam_kwallet.c:393:5:  [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(local.sun_path, fullSocket);
data/kwallet-pam-5.19.5/pam_kwallet.c:793:5:  [4] (buffer) sprintf:
  Does not check for buffer overflows (CWE-120). Use sprintf_s, snprintf, or
  vsnprintf.
    sprintf(path, "%s/%s/%s", userInfo->pw_dir, kdehome, fixpath);
data/kwallet-pam-5.19.5/pam_kwallet.c:125:11:  [3] (buffer) getenv:
  Environment variables are untrustable input if they can be set by an
  attacker. They can have any content and length, and the same variable can
  be set more than once (CWE-807, CWE-20). Check environment variables
  carefully before using them.
    env = getenv (name);
data/kwallet-pam-5.19.5/pam_kwallet.c:425:5:  [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 pipeInt[4];
data/kwallet-pam-5.19.5/pam_kwallet.c:426:5:  [2] (buffer) sprintf:
  Does not check for buffer overflows (CWE-120). Use sprintf_s, snprintf, or
  vsnprintf. Risk is low because the source has a constant maximum length.
    sprintf(pipeInt, "%d", toWalletPipe[0]);
data/kwallet-pam-5.19.5/pam_kwallet.c:427:5:  [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 sockIn[4];
data/kwallet-pam-5.19.5/pam_kwallet.c:428:5:  [2] (buffer) sprintf:
  Does not check for buffer overflows (CWE-120). Use sprintf_s, snprintf, or
  vsnprintf. Risk is low because the source has a constant maximum length.
    sprintf(sockIn, "%d", envSocket);
data/kwallet-pam-5.19.5/pam_kwallet.c:669:24:  [2] (misc) open:
  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).
        const int fd = open(path, O_CREAT | O_WRONLY | O_TRUNC | O_CLOEXEC, 0600);
data/kwallet-pam-5.19.5/pam_kwallet.c:728:24:  [2] (misc) open:
  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).
        const int fd = open(path, O_RDONLY | O_CLOEXEC);
data/kwallet-pam-5.19.5/pam_kwallet.c:736:9:  [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 salt[KWALLET_PAM_SALTSIZE] = {};
data/kwallet-pam-5.19.5/pam_kwallet.c:797:5:  [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 salt[KWALLET_PAM_SALTSIZE] = {};
data/kwallet-pam-5.19.5/pam_kwallet.c:140:25:  [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).
    size_t pamEnvSize = strlen(name) + strlen(value) + 2; //2 is for = and \0
data/kwallet-pam-5.19.5/pam_kwallet.c:140:40:  [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).
    size_t pamEnvSize = strlen(name) + strlen(value) + 2; //2 is for = and \0
data/kwallet-pam-5.19.5/pam_kwallet.c:163:24:  [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).
    const size_t len = strlen (str);
data/kwallet-pam-5.19.5/pam_kwallet.c:250:29:  [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).
    return (pam_xdisplay && strlen(pam_xdisplay) != 0)
data/kwallet-pam-5.19.5/pam_kwallet.c:387:9:  [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(fullSocket) > sizeof(local.sun_path)) {
data/kwallet-pam-5.19.5/pam_kwallet.c:400:18:  [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).
    size_t len = strlen(local.sun_path) + sizeof(local.sun_family);
data/kwallet-pam-5.19.5/pam_kwallet.c:664:13:  [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).
        dir[strlen(dir) - 14] = '\0';//remove kdewallet.salt
data/kwallet-pam-5.19.5/pam_kwallet.c:737:35:  [1] (buffer) read:
  Check buffer boundaries if used in a loop including recursive loops
  (CWE-120, CWE-20).
        const ssize_t bytesRead = read(fd, salt, KWALLET_PAM_SALTSIZE);
data/kwallet-pam-5.19.5/pam_kwallet.c:762:35:  [1] (buffer) read:
  Check buffer boundaries if used in a loop including recursive loops
  (CWE-120, CWE-20).
        const ssize_t readBytes = read(readSaltPipe[0], saltOut, KWALLET_PAM_SALTSIZE);
data/kwallet-pam-5.19.5/pam_kwallet.c:791:23:  [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).
    size_t pathSize = strlen(userInfo->pw_dir) + strlen(kdehome) + strlen(fixpath) + 3;//3 == /, / and \0
data/kwallet-pam-5.19.5/pam_kwallet.c:791:50:  [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).
    size_t pathSize = strlen(userInfo->pw_dir) + strlen(kdehome) + strlen(fixpath) + 3;//3 == /, / and \0
data/kwallet-pam-5.19.5/pam_kwallet.c:791:68:  [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).
    size_t pathSize = strlen(userInfo->pw_dir) + strlen(kdehome) + strlen(fixpath) + 3;//3 == /, / and \0
data/kwallet-pam-5.19.5/pam_kwallet.c:822:41:  [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).
    error = gcry_kdf_derive(passphrase, strlen(passphrase),

ANALYSIS SUMMARY:

Hits = 24
Lines analyzed = 910 in approximately 0.05 seconds (19019 lines/second)
Physical Source Lines of Code (SLOC) = 650
Hits@level = [0]  29 [1]  13 [2]   8 [3]   1 [4]   2 [5]   0
Hits@level+ = [0+]  53 [1+]  24 [2+]  11 [3+]   3 [4+]   2 [5+]   0
Hits/KSLOC@level+ = [0+] 81.5385 [1+] 36.9231 [2+] 16.9231 [3+] 4.61538 [4+] 3.07692 [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.