CVE-2023-45898: The Linux kernel before 6.5.4 has an es1 use-after-free in fs/ext4/extents_status.c, related to ext4_es_insert_extent

High severity · published Oct 16, 2023

CVE-2023-45898

The Linux kernel before 6.5.4 has an es1 use-after-free in fs/ext4/extents_status.c, related to ext4_es_insert_extent

7.8

CVSS

0.3%

EPSS

On KEV

Description

The Linux kernel before 6.5.4 has an es1 use-after-free in fs/ext4/extents_status.c, related to ext4_es_insert_extent.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack vector

Local

Complexity

Low

Privileges

Low

User interaction

None

Confidentiality

High

Integrity

High

Availability

High

Scope

Unchanged

Exploitation

Is it being used?

Exploit prediction (EPSS)0.3% · higher than 22% of CVEs

Exploited in the wildNo evidence yet

CISA KEVNot listed

Ransomware campaign useNot known

Affected products

Which versions

Kernel · Linux

6.5 before 6.5.4 · source: NVD

SIMATIC S7-1500 CPU 1518-4 PN/DP MFP · Siemens

V3.1.0 before V3.1.5; V3.1.0 before V3.1.5 · source: CISA

SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP · Siemens

V3.1.0 before V3.1.5; V3.1.0 before V3.1.5 · source: CISA

SIMATIC S7-1500 TM MFP - GNU/Linux subsystem · Siemens

before V1.1.1 · source: CISA

SIPLUS S7-1500 CPU 1518-4 PN/DP MFP · Siemens

V3.1.0 before V3.1.5 · source: CISA

Affected product

Kernel

Linux

All Kernel CVEs

References

NVD

https://nvd.nist.gov/vuln/detail/CVE-2023-45898

CVE.org

https://www.cve.org/CVERecord?id=CVE-2023-45898

Release Notes

https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5.4

Patch

https://github.com/torvalds/linux/commit/768d612f79822d30a1e7d132a4d4b05337ce42ec

Mailing List

https://lkml.org/lkml/2023/8/13/477

Third Party Advisory

https://lore.kernel.org/lkml/aa03f191-445c-0d2e-d6d7-0a3208d7df7a%40huawei.com/T/

Mailing List

https://www.spinics.net/lists/stable-commits/msg317086.html

cert-portal.siemens.com

https://cert-portal.siemens.com/productcert/html/ssa-265688.html