automatic import of glibcopeneuler22.03_LTS_SP4openeuler22.03_LTS_SP3openeuler20.03

1 files changed, 62 insertions, 0 deletions

diff --git a/backport-CVE-2024-33600-nscd-Do-not-send-missing-not-found-response.patch b/backport-CVE-2024-33600-nscd-Do-not-send-missing-not-found-response.patch
new file mode 100644
index 0000000..0937c54
--- /dev/null
+++ b/backport-CVE-2024-33600-nscd-Do-not-send-missing-not-found-response.patch
@@ -0,0 +1,62 @@
+From 7835b00dbce53c3c87bbbb1754a95fb5e58187aa Mon Sep 17 00:00:00 2001
+From: Florian Weimer <fweimer@redhat.com>
+Date: Thu, 25 Apr 2024 15:01:07 +0200
+Subject: [PATCH] CVE-2024-33600: nscd: Do not send missing not-found response
+ in addgetnetgrentX (bug 31678)
+
+If we failed to add a not-found response to the cache, the dataset
+point can be null, resulting in a null pointer dereference.
+
+Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
+
+Conflict:NA
+Reference:https://sourceware.org/git/?p=glibc.git;a=patch;h=7835b00dbce53c3c87bbbb1754a95fb5e58187aa
+
+---
+ nscd/netgroupcache.c | 14 ++++++--------
+ 1 file changed, 6 insertions(+), 8 deletions(-)
+
+diff --git a/nscd/netgroupcache.c b/nscd/netgroupcache.c
+index f13a11b4..08668e96 100644
+--- a/nscd/netgroupcache.c
++++ b/nscd/netgroupcache.c
+@@ -148,7 +148,7 @@ addgetnetgrentX (struct database_dyn *db, int fd, request_header *req,
+       /* No such service.  */
+       cacheable = do_notfound (db, fd, req, key, &dataset, &total, &timeout,
+ 			       &key_copy);
+-      goto writeout;
++      goto maybe_cache_add;
+     }
+ 
+   memset (&data, '\0', sizeof (data));
+@@ -349,7 +349,7 @@ addgetnetgrentX (struct database_dyn *db, int fd, request_header *req,
+     {
+       cacheable = do_notfound (db, fd, req, key, &dataset, &total, &timeout,
+ 			       &key_copy);
+-      goto writeout;
++      goto maybe_cache_add;
+     }
+ 
+   total = buffilled;
+@@ -411,14 +411,12 @@ addgetnetgrentX (struct database_dyn *db, int fd, request_header *req,
+   }
+ 
+   if (he == NULL && fd != -1)
+-    {
+-      /* We write the dataset before inserting it to the database
+-	 since while inserting this thread might block and so would
+-	 unnecessarily let the receiver wait.  */
+-    writeout:
++    /* We write the dataset before inserting it to the database since
++       while inserting this thread might block and so would
++       unnecessarily let the receiver wait.  */
+       writeall (fd, &dataset->resp, dataset->head.recsize);
+-    }
+ 
++ maybe_cache_add:
+   if (cacheable)
+     {
+       /* If necessary, we also propagate the data to disk.  */
+-- 
+2.33.0
+