CVE-2023-45898
high
CVSS v3
7.8
CVSS v4 NEW
—
VIR risk
7.8
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.
Predictions
Exploit likelihood
75%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| debian | bookworm | fixed | 0 |
| debian | bullseye | fixed | 0 |
| debian | forky | fixed | 6.5.6-1 |
| debian | sid | fixed | 6.5.6-1 |
| debian | trixie | fixed | 6.5.6-1 |
| linux-kernel | affected | 6.5.4 |
References
- https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5.4
- https://github.com/torvalds/linux/commit/768d612f79822d30a1e7d132a4d4b05337ce42ec
- https://lkml.org/lkml/2023/8/13/477
- https://lore.kernel.org/lkml/aa03f191-445c-0d2e-d6d7-0a3208d7df7a%40huawei.com/T/
- https://www.spinics.net/lists/stable-commits/msg317086.html
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
- https://security-tracker.debian.org/tracker/CVE-2023-45898
CWEs
CWE-416
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.