Mercurial > vim
view src/osdef2.h.in @ 33096:828bcb1a37e7 v9.0.1833
patch 9.0.1833: [security] runtime file fixes
Commit: https://github.com/vim/vim/commit/816fbcc262687b81fc46f82f7bbeb1453addfe0c
Author: Christian Brabandt <cb@256bit.org>
Date: Thu Aug 31 23:52:30 2023 +0200
patch 9.0.1833: [security] runtime file fixes
Problem: runtime files may execute code in current dir
Solution: only execute, if not run from current directory
The perl, zig and ruby filetype plugins and the zip and gzip autoload
plugins may try to load malicious executable files from the current
working directory. This is especially a problem on windows, where the
current directory is implicitly in your $PATH and windows may even run a
file with the extension `.bat` because of $PATHEXT.
So make sure that we are not trying to execute a file from the current
directory. If this would be the case, error out (for the zip and gzip)
plugins or silently do not run those commands (for the ftplugins).
This assumes, that only the current working directory is bad. For all
other directories, it is assumed that those directories were
intentionally set to the $PATH by the user.
Signed-off-by: Christian Brabandt <cb@256bit.org>
author | Christian Brabandt <cb@256bit.org> |
---|---|
date | Fri, 01 Sep 2023 00:00:02 +0200 |
parents | 9f3fd7937957 |
children |
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/* * osdef2.h.in - See osdef1.h.in for a description. */ extern int remove(const char *); extern int rename(const char *, const char *); extern int free(char *); extern char *malloc(unsigned int); extern char *realloc(char *, int); extern char *getenv(char *); #ifndef __TANDEM extern int setenv(char *, char *, int); #else extern int setenv(const char *, const char *, int); #endif extern int putenv(const char *); #ifndef __TANDEM extern int gethostname(char *, int); #endif extern void perror(char *); #ifndef __TANDEM extern int sleep(int); #endif extern int usleep(unsigned int); extern unsigned int alarm(unsigned int); #ifndef __TANDEM extern int chdir(char *); #endif extern int fchdir(int); #ifndef stat /* could be redefined to stat64() */ extern int stat(const char *, struct stat *); #endif #ifndef lstat /* could be redefined to lstat64() */ extern int lstat(const char *, struct stat *); #endif extern int fstat(int, struct stat *); extern int open(const char *, int, ...); extern int close(int); #ifndef __TANDEM extern int read(int, char *, size_t); extern int write(int, char *, size_t); #endif extern int pipe(int *); extern off_t lseek(int, off_t, int); extern void sync(void); extern uid_t getuid(void); extern gid_t getgid(void); extern void qsort(void *, size_t, size_t, int (*)(const void *, const void *)); extern int isatty(int); extern int getpid(void); extern int dup(int); extern int unlink(const char *); extern int link(const char *, const char *); extern int mkdir(const char *, mode_t); extern int rmdir(const char *); extern int tgetent(char *, char *); extern int tgetnum(char *); extern int tgetflag(char *); extern char *tgoto(char *, int, int); extern int tputs(char *, int, int (*)(int)); #ifdef HAVE_TERMIOS_H struct termios; /* for tcgetattr() */ extern int tcgetattr(int, struct termios *); extern int tcsetattr(int, int, const struct termios *); #endif #ifdef HAVE_SYS_STATFS_H struct statfs; /* for fstatfs() */ extern int fstatfs(int, struct statfs *, int, int); #endif #ifdef HAVE_GETTIMEOFDAY struct timeval; /* for gettimeofday() */ struct timezone; /* for gettimeofday() */ extern int gettimeofday(struct timeval *tp, struct timezone *tzp); extern time_t time(time_t *); #endif #ifdef HAVE_GETPWNAM struct passwd; /* for getpwnam() */ extern struct passwd *getpwnam(const char *); #endif #ifdef USE_TMPNAM extern char *tmpnam(char *); #else extern char *mktemp(char *); #endif #ifdef ISC extern int _Xmblen(char const *, size_t); #else /* This is different from the header but matches mblen() */ extern int _Xmblen(char *, size_t); #endif