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nixpkgs/pkgs/servers/mail/opensmtpd/proc_path.diff
Thomas Gerbet becfbfde75 opensmtpd: 6.7.1p1 -> 6.8.0p2
The 6.8.0p2 release includes the fixes for CVE-2020-35679 and
CVE-2020-35680 [0].

[0] https://www.mail-archive.com/misc@opensmtpd.org/msg05188.html
2021-01-17 13:37:31 +01:00

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Diff

diff --git a/usr.sbin/smtpd/smtpd.c b/usr.sbin/smtpd/smtpd.c
index e049f07c..a1bd03a0 100644
--- a/usr.sbin/smtpd/smtpd.c
+++ b/usr.sbin/smtpd/smtpd.c
@@ -1157,6 +1157,7 @@ fork_proc_backend(const char *key, const char *conf, const char *procname)
char path[PATH_MAX];
char name[PATH_MAX];
char *arg;
+ char *proc_path;
if (strlcpy(name, conf, sizeof(name)) >= sizeof(name)) {
log_warnx("warn: %s-proc: conf too long", key);
@@ -1167,7 +1168,12 @@ fork_proc_backend(const char *key, const char *conf, const char *procname)
if (arg)
*arg++ = '\0';
- if (snprintf(path, sizeof(path), PATH_LIBEXEC "/%s-%s", key, name) >=
+ proc_path = getenv("OPENSMTPD_PROC_PATH");
+ if (proc_path == NULL) {
+ proc_path = PATH_LIBEXEC;
+ }
+
+ if (snprintf(path, sizeof(path), "%s/%s-%s", proc_path, key, name) >=
(ssize_t)sizeof(path)) {
log_warn("warn: %s-proc: exec path too long", key);
return (-1);
diff --git a/usr.sbin/smtpd/table.c b/usr.sbin/smtpd/table.c
index 9cfdfb99..24dfcca4 100644
--- a/usr.sbin/smtpd/table.c
+++ b/usr.sbin/smtpd/table.c
@@ -201,6 +201,7 @@ table_create(const char *backend, const char *name, const char *tag,
struct table_backend *tb;
char buf[LINE_MAX];
char path[LINE_MAX];
+ const char *proc_path;
size_t n;
struct stat sb;
@@ -215,11 +216,16 @@ table_create(const char *backend, const char *name, const char *tag,
if (name && table_find(name, NULL))
fatalx("table_create: table \"%s\" already defined", name);
+ proc_path = getenv("OPENSMTPD_PROC_PATH");
+ if (proc_path == NULL) {
+ proc_path = PATH_LIBEXEC;
+ }
+
if ((tb = table_backend_lookup(backend)) == NULL) {
- if ((size_t)snprintf(path, sizeof(path), PATH_LIBEXEC"/table-%s",
- backend) >= sizeof(path)) {
- fatalx("table_create: path too long \""
- PATH_LIBEXEC"/table-%s\"", backend);
+ if ((size_t)snprintf(path, sizeof(path), "%s/table-%s",
+ proc_path, backend) >= sizeof(path)) {
+ fatalx("table_create: path too long \"%s/table-%s\"",
+ proc_path, backend);
}
if (stat(path, &sb) == 0) {
tb = table_backend_lookup("proc");