CVE-2023-45898
HIGHCVSS 7.8/10EPSS 0.27%
Last modified
CVE-2023-45898 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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.. EPSS estimates a 0.27% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 6.5, < 6.5.4 |
References
- https://lkml.org/lkml/2023/8/13/477Mailing List, Patch
- https://www.spinics.net/lists/stable-commits/msg317086.htmlMailing List, Patch, Third Party Advisory
- https://lkml.org/lkml/2023/8/13/477Mailing List, Patch
- https://www.spinics.net/lists/stable-commits/msg317086.htmlMailing List, Patch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is 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.
How severe is CVE-2023-45898?
CVE-2023-45898 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.27% probability of exploitation in the next 30 days.
How do I fix CVE-2023-45898?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2023-45898?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST