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[Jailkit-dev] [bug #46320] uid length problem
From: |
Martin Lonkwitz |
Subject: |
[Jailkit-dev] [bug #46320] uid length problem |
Date: |
Thu, 29 Oct 2015 09:07:28 +0000 |
User-agent: |
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.80 Safari/537.36 |
URL:
<http://savannah.nongnu.org/bugs/?46320>
Summary: uid length problem
Project: Jailkit
Submitted by: mawelo
Submitted on: Do 29 Okt 2015 09:07:26 GMT
Category: None
Severity: 3 - Normal
Item Group: None
Status: None
Privacy: Public
Assigned to: None
Open/Closed: Open
Discussion Lock: Any
_______________________________________________________
Details:
Dear all,
I found this problem using NIS on Linux with big UID-values.
file: passwdparser.c
function: struct passwd *internal_getpwuid(const char *filename, uid_t uid)
"char find" works with a char array fixed length set to 10 but forgot to
include the '\0' byte.
So here my suggestion to fix this:
struct passwd *internal_getpwuid(const char *filename, uid_t uid) {
static struct passwd retpw;
char find[11], *line; // 10 bytes plus 1 byte for \0
memset(find,0,11); // filled with 0 byte
snprintf(find,11,"%d",(int)uid);
It's not 100% okay cause we assume to have a 32 bit integer here....so there
is maybe the need for a much better solution.
Best Regards,
Martin
_______________________________________________________
Reply to this item at:
<http://savannah.nongnu.org/bugs/?46320>
_______________________________________________
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- [Jailkit-dev] [bug #46320] uid length problem,
Martin Lonkwitz <=