diff options
Diffstat (limited to 'gnu/packages/patches/a2ps-CVE-2001-1593.patch')
| -rw-r--r-- | gnu/packages/patches/a2ps-CVE-2001-1593.patch | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/gnu/packages/patches/a2ps-CVE-2001-1593.patch b/gnu/packages/patches/a2ps-CVE-2001-1593.patch new file mode 100644 index 0000000000..17b7e7d932 --- /dev/null +++ b/gnu/packages/patches/a2ps-CVE-2001-1593.patch @@ -0,0 +1,69 @@ +Index: b/lib/routines.c +=================================================================== +--- a/lib/routines.c ++++ b/lib/routines.c +@@ -242,3 +242,50 @@ + /* Don't complain if you can't unlink. Who cares of a tmp file? */ + unlink (filename); + } ++ ++/* ++ * Securely generate a temp file, and make sure it gets ++ * deleted upon exit. ++ */ ++static char ** tempfiles; ++static unsigned ntempfiles; ++ ++static void ++cleanup_tempfiles() ++{ ++ while (ntempfiles--) ++ unlink(tempfiles[ntempfiles]); ++} ++ ++char * ++safe_tempnam(const char *pfx) ++{ ++ char *dirname, *filename; ++ int fd; ++ ++ if (!(dirname = getenv("TMPDIR"))) ++ dirname = "/tmp"; ++ ++ tempfiles = (char **) realloc(tempfiles, ++ (ntempfiles+1) * sizeof(char *)); ++ if (tempfiles == NULL) ++ return NULL; ++ ++ filename = malloc(strlen(dirname) + strlen(pfx) + sizeof("/XXXXXX")); ++ if (!filename) ++ return NULL; ++ ++ sprintf(filename, "%s/%sXXXXXX", dirname, pfx); ++ ++ if ((fd = mkstemp(filename)) < 0) { ++ free(filename); ++ return NULL; ++ } ++ close(fd); ++ ++ if (ntempfiles == 0) ++ atexit(cleanup_tempfiles); ++ tempfiles[ntempfiles++] = filename; ++ ++ return filename; ++} +Index: b/lib/routines.h +=================================================================== +--- a/lib/routines.h ++++ b/lib/routines.h +@@ -255,7 +255,8 @@ + /* If _STR_ is not defined, give it a tempname in _TMPDIR_ */ + #define tempname_ensure(Str) \ + do { \ +- (Str) = (Str) ? (Str) : tempnam (NULL, "a2_"); \ ++ (Str) = (Str) ? (Str) : safe_tempnam("a2_"); \ + } while (0) ++char * safe_tempnam(const char *); + + #endif |