Bug 164815 - NSCD buffer overflow for large gids
NSCD buffer overflow for large gids
Product: Red Hat Enterprise Linux 4
Classification: Red Hat
Component: glibc (Show other bugs)
i386 Linux
medium Severity medium
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Assigned To: Jakub Jelinek
Brian Brock
Depends On: 163538
Blocks: 156322
  Show dependency treegraph
Reported: 2005-08-01 12:11 EDT by Elena Zannoni
Modified: 2007-11-30 17:07 EST (History)
2 users (show)

See Also:
Fixed In Version: RHBA-2005-678
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2005-10-05 12:43:03 EDT
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RHEL 7.3 requirements from Atomic Host:
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Description Elena Zannoni 2005-08-01 12:11:20 EDT
+++ This bug was initially created as a clone of Bug #163538 +++

From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.8) Gecko/20050623
Fedora/1.0.4-5 Firefox/1.0.4

Description of problem:
diff -aru glibc-orig/nscd/grpcache.c glibc-nscd-fix/nscd/grpcache.c
--- glibc-orig/nscd/grpcache.c  2005-02-22 17:53:39.000000000 -0500
+++ glibc-nscd-fix/nscd/grpcache.c      2005-07-18 01:36:20.000000000 -0400
@@ -167,7 +167,7 @@
       char *gr_name;
       char *cp;
       const size_t key_len = strlen (key);
-      const size_t buf_len = 3 + sizeof (grp->gr_gid) + key_len + 1;
+      const size_t buf_len = 3 * sizeof (grp->gr_gid) + key_len + 1;
       char *buf = alloca (buf_len);
       ssize_t n;
       size_t cnt;

Version-Release number of selected component (if applicable):

How reproducible:
Didn't try

Additional info:
Comment 2 Red Hat Bugzilla 2005-10-05 12:43:03 EDT
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.


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