Use After Free in Linux Kernel
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.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.003 (18.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 18th percentile — 18.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
Weakness classification (CWE)
References
- lore.kernel.org/lkml/aa03f191-445c-0d2e-d6d7-0a3208d7df7a@huawei.com/T/ (Third Party Advisory)
- www.spinics.net/lists/stable-commits/msg317086.html (Patch, Mailing List, Third Party Advisory)
- lkml.org/lkml/2023/8/13/477 (Patch, Mailing List)
- github.com/torvalds/linux/commit/768d612f79822d30a1e7d132a4d4b05337ce42ec (Patch)
- cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5.4 (Release Notes)
- 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
- 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
Frequently asked questions
- What is CVE-2023-45898?
- CVE-2023-45898 is a high-severity vulnerability in Linux Kernel, classified under Use After Free. CVSS score: 7.8/10. Published 2023-10-16.
- How severe is CVE-2023-45898?
- High severity. CVSS v3 base score is 7.8 out of 10.