b08edd98b2
- glibc-CVE-2024-33599-nscd-Stack-based-buffer-overflow-in-n.patch: nscd: Stack-based buffer overflow in netgroup cache (CVE-2024-33599, bsc#1223423, BZ #31677) - glibc-CVE-2024-33600-nscd-Avoid-null-pointer-crashes-after.patch: nscd: Avoid null pointer crashes after notfound response (CVE-2024-33600, bsc#1223424, BZ #31678) - glibc-CVE-2024-33600-nscd-Do-not-send-missing-not-found-re.patch: nscd: Do not send missing not-found response in addgetnetgrentX (CVE-2024-33600, bsc#1223424, BZ #31678) - glibc-CVE-2024-33601-CVE-2024-33602-nscd-netgroup-Use-two.patch: netgroup: Use two buffers in addgetnetgrentX (CVE-2024-33601, CVE-2024-33602, bsc#1223425, BZ #31680) - nscd-netgroup-cache-timeout.patch: Use time_t for return type of addgetnetgrentX (CVE-2024-33602, bsc#1223425) - utmp-time-bits.patch: login: structs utmp, utmpx, lastlog _TIME_BITS independence (BZ #30701) - elf-parse-tunables.patch: elf: Only process multiple tunable once (BZ #31686) OBS-URL: https://build.opensuse.org/request/show/1173931 OBS-URL: https://build.opensuse.org/package/show/Base:System/glibc?expand=0&rev=707
60 lines
2.0 KiB
Diff
60 lines
2.0 KiB
Diff
From 5a508e0b508c8ad53bd0d2fb48fd71b242626341 Mon Sep 17 00:00:00 2001
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From: Florian Weimer <fweimer@redhat.com>
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Date: Thu, 25 Apr 2024 15:01:07 +0200
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Subject: [PATCH] CVE-2024-33600: nscd: Do not send missing not-found response
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in addgetnetgrentX (bug 31678)
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If we failed to add a not-found response to the cache, the dataset
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point can be null, resulting in a null pointer dereference.
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Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
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(cherry picked from commit 7835b00dbce53c3c87bbbb1754a95fb5e58187aa)
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---
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nscd/netgroupcache.c | 14 ++++++--------
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1 file changed, 6 insertions(+), 8 deletions(-)
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diff --git a/nscd/netgroupcache.c b/nscd/netgroupcache.c
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index f227dc7fa2..c18fe111f3 100644
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--- a/nscd/netgroupcache.c
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+++ b/nscd/netgroupcache.c
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@@ -147,7 +147,7 @@ addgetnetgrentX (struct database_dyn *db, int fd, request_header *req,
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/* No such service. */
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cacheable = do_notfound (db, fd, req, key, &dataset, &total, &timeout,
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&key_copy);
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- goto writeout;
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+ goto maybe_cache_add;
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}
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memset (&data, '\0', sizeof (data));
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@@ -348,7 +348,7 @@ addgetnetgrentX (struct database_dyn *db, int fd, request_header *req,
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{
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cacheable = do_notfound (db, fd, req, key, &dataset, &total, &timeout,
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&key_copy);
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- goto writeout;
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+ goto maybe_cache_add;
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}
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total = buffilled;
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@@ -410,14 +410,12 @@ addgetnetgrentX (struct database_dyn *db, int fd, request_header *req,
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}
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if (he == NULL && fd != -1)
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- {
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- /* We write the dataset before inserting it to the database
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- since while inserting this thread might block and so would
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- unnecessarily let the receiver wait. */
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- writeout:
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+ /* We write the dataset before inserting it to the database since
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+ while inserting this thread might block and so would
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+ unnecessarily let the receiver wait. */
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writeall (fd, &dataset->resp, dataset->head.recsize);
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- }
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+ maybe_cache_add:
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if (cacheable)
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{
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/* If necessary, we also propagate the data to disk. */
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--
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2.45.0
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