CVE-2023-1249
published 2023-03-23CVE-2023-1249: A use-after-free flaw was found in the Linux kernel’s core dump subsystem. This flaw allows a local user to crash the system. Only if patch 390031c94211…
PriorityP422medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.33%
25.0th percentile
A use-after-free flaw was found in the Linux kernel’s core dump subsystem. This flaw allows a local user to crash the system. Only if patch 390031c94211 ("coredump: Use the vma snapshot in fill_files_note") not applied yet, then kernel could be affected.
Affected
13 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 5.17.3-1 (bookworm) | linux 5.17.3-1 (bookworm) |
| linux | linux_kernel | < 5.18 | 5.18 |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 5.10.113-1 | 5.10.113-1 |
| linux | linux_kernel | >= 0 < 5.17.3-1 | 5.17.3-1 |
| linux | linux_kernel | >= 0 < 5.17.3-1 | 5.17.3-1 |
| linux | linux_kernel | >= 0 < 5.17.3-1 | 5.17.3-1 |
| msrc | cbl2_kernel_5.15.107.1-2_on_cbl_mariner_2.0 | — | — |
| msrc | cbl_mariner_1.0_arm | — | — |
| msrc | cbl_mariner_1.0_x64 | — | — |
| msrc | cbl_mariner_2.0_arm | — | — |
| msrc | cbl_mariner_2.0_x64 | — | — |
| msrc | cm1_kernel_5.10.177.1-1_on_cbl_mariner_1.0 | — | — |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian5.5MEDIUM
vendor_msrc5.5MEDIUM
vendor_redhat5.5MEDIUM
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Microsoft
A use-after-free flaw was found in the Linux kernel’s core dump subsystem. This flaw allows a local user to crash the system. Only if patch 390031c94211 ("coredump: Use the vma snapshot in fill_files_
vendor_msrc·2023-03-14·CVSS 5.5
CVE-2023-1249 [MEDIUM] CWE-416 A use-after-free flaw was found in the Linux kernel’s core dump subsystem. This flaw allows a local user to crash the system. Only if patch 390031c94211 ("coredump: Use the vma snapshot in fill_files_
A use-after-free flaw was found in the Linux kernel’s core dump subsystem. This flaw allows a local user to crash the system. Only if patch 390031c94211 ("coredump: Use the vma snapshot in fill_files_note") not applied yet then kernel could be affected.
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to
Debian
CVE-2023-1249: linux - A use-after-free flaw was found in the Linux kernel’s core dump subsystem. This ...
vendor_debian·2023·CVSS 5.5
CVE-2023-1249 [MEDIUM] CVE-2023-1249: linux - A use-after-free flaw was found in the Linux kernel’s core dump subsystem. This ...
A use-after-free flaw was found in the Linux kernel’s core dump subsystem. This flaw allows a local user to crash the system. Only if patch 390031c94211 ("coredump: Use the vma snapshot in fill_files_note") not applied yet, then kernel could be affected.
Scope: local
bookworm: resolved (fixed in 5.17.3-1)
bullseye: resolved (fixed in 5.10.113-1)
forky: resolved (fixed in 5.17.3-1)
sid: resolved (fixed in 5.17.3-1)
trixie: resolved (fixed in 5.17.3-1)
Red Hat
kernel: missing mmap_lock in file_files_note that could possibly lead to a use after free in the coredump code
vendor_redhat·2022-01-31·CVSS 5.5
CVE-2023-1249 [MEDIUM] CWE-416 kernel: missing mmap_lock in file_files_note that could possibly lead to a use after free in the coredump code
kernel: missing mmap_lock in file_files_note that could possibly lead to a use after free in the coredump code
A use-after-free flaw was found in the Linux kernel’s core dump subsystem. This flaw allows a local user to crash the system. Only if patch 390031c94211 ("coredump: Use the vma snapshot in fill_files_note") not applied yet, then kernel could be affected.
A use-after-free flaw was found in the Linux kernel’s core dump subsystem. This flaw allows a local user to crash the system. Only if patch 390031c94211 ("coredump: Use the vma snapshot in fill_files_note") not applied yet, then kernel could be affected.
Statement: This flaw is challenging to execute, as the attacker must race the vulnerable code twice. Therefore it is considered Low severity.
Package: kernel (Red Hat Enterpri
GHSA
GHSA-98m9-9rrp-w52h: A use-after-free flaw was found in the Linux kernel’s core dump subsystem
ghsa_unreviewed·2023-07-06
CVE-2023-1249 [MEDIUM] CWE-416 GHSA-98m9-9rrp-w52h: A use-after-free flaw was found in the Linux kernel’s core dump subsystem
A use-after-free flaw was found in the Linux kernel’s core dump subsystem. This flaw allows a local user to crash the system. Only if patch 390031c94211 ("coredump: Use the vma snapshot in fill_files_note") not applied yet, then kernel could be affected.
OSV
CVE-2023-1249: A use-after-free flaw was found in the Linux kernel’s core dump subsystem
osv·2023-03-23·CVSS 5.5
CVE-2023-1249 [MEDIUM] CVE-2023-1249: A use-after-free flaw was found in the Linux kernel’s core dump subsystem
A use-after-free flaw was found in the Linux kernel’s core dump subsystem. This flaw allows a local user to crash the system. Only if patch 390031c94211 ("coredump: Use the vma snapshot in fill_files_note") not applied yet, then kernel could be affected.
No detection rules found.
No public exploits indexed.
http://packetstormsecurity.com/files/171912/CentOS-Stream-9-Missing-Kernel-Security-Fix.htmlhttps://patchwork.kernel.org/project/linux-fsdevel/patch/87iltzn3nd.fsf_-_%40email.froward.int.ebiederm.org/http://packetstormsecurity.com/files/171912/CentOS-Stream-9-Missing-Kernel-Security-Fix.htmlhttps://patchwork.kernel.org/project/linux-fsdevel/patch/87iltzn3nd.fsf_-_%40email.froward.int.ebiederm.org/
2023-03-23
Published