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Accepting request 1170863 from home:gbelinassi:branches:Base:System

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- glibc-fix-cve-2024-33599.patch: nscd: Stack-based buffer overflow in
  netgroup cache (CVE-2024-33599, bsc#1223423)

OBS-URL: https://build.opensuse.org/request/show/1170863
OBS-URL: https://build.opensuse.org/package/show/Base:System/glibc?expand=0&rev=703
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Dirk Mueller 2024-05-01 06:00:58 +00:00 committed by Git OBS Bridge
parent b54ec08c8c
commit 293988be41
3 changed files with 45 additions and 0 deletions
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37
glibc-fix-cve-2024-33599.patch Normal file
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@ -0,0 +1,37 @@
From 87801a8fd06db1d654eea3e4f7626ff476a9bdaa Mon Sep 17 00:00:00 2001
From: Florian Weimer <fweimer@redhat.com>
Date: Thu, 25 Apr 2024 15:00:45 +0200
Subject: [PATCH] CVE-2024-33599: nscd: Stack-based buffer overflow in netgroup
cache (bug 31677)
Using alloca matches what other caches do. The request length is
bounded by MAXKEYLEN.
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
---
nscd/netgroupcache.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/nscd/netgroupcache.c b/nscd/netgroupcache.c
index 0c6e46f15c..f227dc7fa2 100644
--- a/nscd/netgroupcache.c
+++ b/nscd/netgroupcache.c
@@ -502,12 +502,13 @@ addinnetgrX (struct database_dyn *db, int fd, request_header *req,
= (struct indataset *) mempool_alloc (db,
sizeof (*dataset) + req->key_len,
1);
- struct indataset dataset_mem;
bool cacheable = true;
if (__glibc_unlikely (dataset == NULL))
{
cacheable = false;
- dataset = &dataset_mem;
+ /* The alloca is safe because nscd_run_worker verfies that
+ key_len is not larger than MAXKEYLEN. */
+ dataset = alloca (sizeof (*dataset) + req->key_len);
}
datahead_init_pos (&dataset->head, sizeof (*dataset) + req->key_len,
--
2.44.0

6
glibc.changes
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@ -1,3 +1,9 @@
-------------------------------------------------------------------
Mon Apr 29 17:42:43 UTC 2024 - Giuliano Belinassi <giuliano.belinassi@suse.com>
- glibc-fix-cve-2024-33599.patch: nscd: Stack-based buffer overflow in
netgroup cache (CVE-2024-33599, bsc#1223423)
-------------------------------------------------------------------
Thu Apr 18 07:55:49 UTC 2024 - Andreas Schwab <schwab@suse.de>

2
glibc.spec
View File

@ -314,6 +314,8 @@ Patch1003: sigisemptyset.patch
Patch1004: stdbit-builtins.patch
# PATCH-FIX-UPSTREAM iconv: ISO-2022-CN-EXT: fix out-of-bound writes when writing escape sequence (CVE-2024-2961)
Patch1005: iconv-iso-2022-cn-ext.patch
# PATCH-FIX-UPSTREAM: CVE-2024-33599: nscd: Stack-based buffer overflow in netgroup cache
Patch1006: glibc-fix-cve-2024-33599.patch
%endif
###