Package: uuid-runtime
Version: 2.41-5
Severity: serious
Justification: Breaks production system which need the current time
stored in timeuuids
Tags: trixie forky sid
Just noticed that basically my complete infrastructure broke because
uuid-runtime doesn't create correct uuids anymore. The data stored in
my databases is now off by two hours:
```
#include <stdio.h>
#include <uuid/uuid.h>
#include <time.h>
int main() {
uuid_t uuid;
char uuid_str[37];
char time_str[64];
time_t timestamp;
struct timeval tv;
struct tm *tm_info;
// Generate a time-based UUID (version 1)
uuid_generate_time(uuid);
// Convert the UUID to a string representation
uuid_unparse(uuid, uuid_str);
// Print the UUID
printf("Time-based UUID: %s\n", uuid_str);
// Extract the timestamp from the UUID
timestamp = uuid_time(uuid, &tv);
// Print the extracted timestamp
printf("Timestamp (seconds since epoch): %ld\n", (long)timestamp);
printf("Timestamp (with microseconds): %ld.%06ld\n",
(long)tv.tv_sec, (long)tv.tv_usec);
// Convert to UTC time
tm_info = gmtime(×tamp);
strftime(time_str, sizeof(time_str), "%Y-%m-%d %H:%M:%S UTC", tm_info);
printf("Human-readable time (UTC): %s\n", time_str);
return 0;
}
```
$ gcc -o uuid_gen uuid_gen.c -luuid
when I run it now, I get:
```
$ date -u; ./uuid_gen
Di 3. Feb 13:00:08 UTC 2026
Time-based UUID: 80a1a41a-00ef-11f1-8000-2cf05d047039
Timestamp (seconds since epoch): 1770116408
Timestamp (with microseconds): 1770116408.045673
Human-readable time (UTC): 2026-02-03 11:00:08 UTC
```
You can also double check this with https://www.famkruithof.net/uuid/uuidgen
When I install uuid-runtime_2.38.1-5+deb12u3_amd64.deb from bookworm
(on the same system) then I get the correct output:
```
$ date -u; ./uuid_gen
Di 3. Feb 13:02:01 UTC 2026
Time-based UUID: 87a7a1cc-0100-11f1-8afe-2cf05d047039
Timestamp (seconds since epoch): 1770123721
Timestamp (with microseconds): 1770123721.273390
Human-readable time (UTC): 2026-02-03 13:02:01 UTC
```
Btw. I see this problem on systems which have UTC set as its timezone.
My local system has Europe/Berlin set as its timezone and sees it too.
