CVE-2023-4385
published 2023-08-16CVE-2023-4385: A NULL pointer dereference flaw was found in dbFree in fs/jfs/jfs_dmap.c in the journaling file system (JFS) in the Linux Kernel. This issue may allow a local…
PriorityP420medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.22%
12.4th percentile
A NULL pointer dereference flaw was found in dbFree in fs/jfs/jfs_dmap.c in the journaling file system (JFS) in the Linux Kernel. This issue may allow a local attacker to crash the system due to a missing sanity check.
Affected
8 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 5.18.5-1 (bookworm) | linux 5.18.5-1 (bookworm) |
| linux | linux_kernel | <= 5.18.19 | — |
| linux | linux_kernel | >= 0 < 5.10.127-1 | 5.10.127-1 |
| linux | linux_kernel | >= 0 < 5.18.5-1 | 5.18.5-1 |
| linux | linux_kernel | >= 0 < 5.18.5-1 | 5.18.5-1 |
| linux | linux_kernel | >= 0 < 5.18.5-1 | 5.18.5-1 |
| linux | linux_kernel | >= 0 < 4.4.0-245.279 | 4.4.0-245.279 |
| msrc | cbl2_kernel_5.15.126.1-1_on_cbl_mariner_2.0 | — | — |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv6.5MEDIUM
vendor_ubuntu6.5MEDIUM
vendor_debian5.5MEDIUM
vendor_msrc5.5MEDIUM
vendor_redhat5.5MEDIUM
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Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2023-09-19·CVSS 6.5
CVE-2023-32269 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Daniel Moghimi discovered that some Intel(R) Processors did not properly
clear microarchitectural state after speculative execution of various
instructions. A local unprivileged user could use this to obtain to
sensitive information. (CVE-2022-40982)
Yang Lan discovered that the GFS2 file system implementation in the Linux
kernel could attempt to dereference a null pointer in some situations. An
attacker could use this to construct a malicious GFS2 image that, when
mounted and operated on, could cause a denial of service (system crash).
(CVE-2023-3212)
It was discovered that the NET/ROM protocol implementation in the Linux
kernel contained a race condition in some situations, leading to
Microsoft
Kernel: jfs: null pointer dereference in dbfree()
vendor_msrc·2023-08-08·CVSS 5.5
CVE-2023-4385 [MEDIUM] CWE-476 Kernel: jfs: null pointer dereference in dbfree()
Kernel: jfs: null pointer dereference in dbfree()
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 additional products is identified, we will update the CVE to reflect this.
Mariner: Mariner
redhat: redhat
Customer Action Required: Yes
Remediation: CBL-Mariner Releases
Reference: https://learn.mic
Debian
CVE-2023-4385: linux - A NULL pointer dereference flaw was found in dbFree in fs/jfs/jfs_dmap.c in the ...
vendor_debian·2023·CVSS 5.5
CVE-2023-4385 [MEDIUM] CVE-2023-4385: linux - A NULL pointer dereference flaw was found in dbFree in fs/jfs/jfs_dmap.c in the ...
A NULL pointer dereference flaw was found in dbFree in fs/jfs/jfs_dmap.c in the journaling file system (JFS) in the Linux Kernel. This issue may allow a local attacker to crash the system due to a missing sanity check.
Scope: local
bookworm: resolved (fixed in 5.18.5-1)
bullseye: resolved (fixed in 5.10.127-1)
forky: resolved (fixed in 5.18.5-1)
sid: resolved (fixed in 5.18.5-1)
trixie: resolved (fixed in 5.18.5-1)
Red Hat
kernel: jfs: NULL pointer dereference in dbFree()
vendor_redhat·2022-04-11·CVSS 5.5
CVE-2023-4385 [MEDIUM] CWE-476 kernel: jfs: NULL pointer dereference in dbFree()
kernel: jfs: NULL pointer dereference in dbFree()
A NULL pointer dereference flaw was found in dbFree in fs/jfs/jfs_dmap.c in the journaling file system (JFS) in the Linux Kernel. This issue may allow a local attacker to crash the system due to a missing sanity check.
A NULL pointer dereference flaw was found in dbFree in fs/jfs/jfs_dmap.c in the journaling file system (JFS) in the Linux Kernel. This issue may allow a local attacker to crash the system due to a missing sanity check.
Statement: As the Journaling File System (JFS) is not enabled by default, this flaw does not affect any of the supported RHEL kernels, except RHEL 6.
Package: kernel (Red Hat Enterprise Linux 6) - Out of support scope
Package: kernel (Red Hat Enterprise Linux 7) - Not affected
Package: kernel-rt (Red Hat
OSV
linux, linux-aws, linux-kvm, linux-lts-xenial vulnerabilities
osv·2023-09-19·CVSS 6.5
CVE-2022-40982 [MEDIUM] linux, linux-aws, linux-kvm, linux-lts-xenial vulnerabilities
linux, linux-aws, linux-kvm, linux-lts-xenial vulnerabilities
Daniel Moghimi discovered that some Intel(R) Processors did not properly
clear microarchitectural state after speculative execution of various
instructions. A local unprivileged user could use this to obtain to
sensitive information. (CVE-2022-40982)
Yang Lan discovered that the GFS2 file system implementation in the Linux
kernel could attempt to dereference a null pointer in some situations. An
attacker could use this to construct a malicious GFS2 image that, when
mounted and operated on, could cause a denial of service (system crash).
(CVE-2023-3212)
It was discovered that the NET/ROM protocol implementation in the Linux
kernel contained a race condition in some situations, leading to a use-
after-free vulnerability. A loca
OSV
CVE-2023-4385: A NULL pointer dereference flaw was found in dbFree in fs/jfs/jfs_dmap
osv·2023-08-16·CVSS 5.5
CVE-2023-4385 [MEDIUM] CVE-2023-4385: A NULL pointer dereference flaw was found in dbFree in fs/jfs/jfs_dmap
A NULL pointer dereference flaw was found in dbFree in fs/jfs/jfs_dmap.c in the journaling file system (JFS) in the Linux Kernel. This issue may allow a local attacker to crash the system due to a missing sanity check.
GHSA
GHSA-r4x5-77vp-hgvg: A NULL pointer dereference flaw was found in dbFree in fs/jfs/jfs_dmap
ghsa_unreviewed·2023-08-16
CVE-2023-4385 [MEDIUM] CWE-476 GHSA-r4x5-77vp-hgvg: A NULL pointer dereference flaw was found in dbFree in fs/jfs/jfs_dmap
A NULL pointer dereference flaw was found in dbFree in fs/jfs/jfs_dmap.c in the journaling file system (JFS) in the Linux Kernel. This issue may allow a local attacker to crash the system due to a missing sanity check.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://access.redhat.com/security/cve/CVE-2023-4385https://bugzilla.redhat.com/show_bug.cgi?id=2219272https://github.com/torvalds/linux/commit/0d4837fdb796f99369cf7691d33de1b856bcaf1fhttps://access.redhat.com/security/cve/CVE-2023-4385https://bugzilla.redhat.com/show_bug.cgi?id=2219272https://github.com/torvalds/linux/commit/0d4837fdb796f99369cf7691d33de1b856bcaf1f
2023-08-16
Published