CVE-2022-2978
What it is
A flaw use after free in the Linux kernel NILFS file system was found in the way user triggers function security_inode_alloc to fail with following call to function nilfs_mdt_destroy. A local user could use this flaw to crash the system or potentially escalate their privileges on the system.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 0.2% chance of exploitation in the next 30 days (EPSS).
- Fix
- No patch or advisory is linked yet. Look at mitigations or restrict exposure.
Timeline
- ReservedThe CVE id was reserved by its CNA
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.2% in the next 30 days (EPSS).
- Severity: 7.8 HIGH (CVSS).
- Fix: none linked yet, which raises it.
Details
- Published
- Last modified
- Exploit probability
- 0.2% · EPSS, next 30 days
- Weakness
- CWE-416 · Use after free
- Record status
- Modified
Affected
- Linux Kernel < 4.9.331
- Linux Kernel < 4.14.296
- Linux Kernel < 4.19.262
- Linux Kernel < 5.4.218
- Linux Kernel < 5.10.148
- Linux Kernel < 5.15.73
- Linux Kernel < 5.19.15
- Linux Kernel < 6.0.1
Attack profile CVSS 3.1 · 7.8
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2022-2978.md and follow it. Check whether this project is affected by CVE-2022-2978. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
References
- https://lists.debian.org/debian-lts-announce/2022/12/msg00034.html
- https://lore.kernel.org/linux-fsdevel/20220816040859.659129-1-dzm91%40hust.edu.cn/T/#u
- https://lists.debian.org/debian-lts-announce/2022/12/msg00034.html
- https://lore.kernel.org/linux-fsdevel/20220816040859.659129-1-dzm91%40hust.edu.cn/T/#u
- https://cert-portal.siemens.com/productcert/html/ssa-794697.html